Merge pull request #4680 from daniel-j-born/tcp_listener

Make grpc_tcp_listener private.
diff --git a/.gitignore b/.gitignore
index 471649d..cc70659 100644
--- a/.gitignore
+++ b/.gitignore
@@ -82,3 +82,6 @@
 # Podfile.lock and the workspace file are tracked, to ease deleting them. That's
 # needed to trigger "pod install" to rerun the preinstall commands.
 Pods/
+
+# Artifacts directory
+artifacts/
diff --git a/BUILD b/BUILD
index c02fb9d..fa19d3d 100644
--- a/BUILD
+++ b/BUILD
@@ -418,6 +418,7 @@
     "src/core/census/context.c",
     "src/core/census/initialize.c",
     "src/core/census/operation.c",
+    "src/core/census/tag_set.c",
     "src/core/census/tracing.c",
   ],
   hdrs = [
@@ -438,6 +439,9 @@
     "//external:zlib",
     ":gpr",
   ],
+  copts = [
+    "-std=gnu99",
+  ],
 )
 
 
@@ -690,6 +694,7 @@
     "src/core/census/context.c",
     "src/core/census/initialize.c",
     "src/core/census/operation.c",
+    "src/core/census/tag_set.c",
     "src/core/census/tracing.c",
   ],
   hdrs = [
@@ -707,6 +712,9 @@
   deps = [
     ":gpr",
   ],
+  copts = [
+    "-std=gnu99",
+  ],
 )
 
 
@@ -1225,6 +1233,7 @@
     "src/core/census/context.c",
     "src/core/census/initialize.c",
     "src/core/census/operation.c",
+    "src/core/census/tag_set.c",
     "src/core/census/tracing.c",
   ],
   hdrs = [
diff --git a/Makefile b/Makefile
index 6d15a57..d3597c2 100644
--- a/Makefile
+++ b/Makefile
@@ -104,78 +104,28 @@
 LD_basicprof = $(DEFAULT_CC)
 LDXX_basicprof = $(DEFAULT_CXX)
 CPPFLAGS_basicprof = -O2 -DGRPC_BASIC_PROFILER -DGRPC_TIMERS_RDTSC
-LDFLAGS_basicprof =
 DEFINES_basicprof = NDEBUG
 
-VALID_CONFIG_stapprof = 1
-CC_stapprof = $(DEFAULT_CC)
-CXX_stapprof = $(DEFAULT_CXX)
-LD_stapprof = $(DEFAULT_CC)
-LDXX_stapprof = $(DEFAULT_CXX)
-CPPFLAGS_stapprof = -O2 -DGRPC_STAP_PROFILER
-LDFLAGS_stapprof =
-DEFINES_stapprof = NDEBUG
+VALID_CONFIG_helgrind = 1
+CC_helgrind = $(DEFAULT_CC)
+CXX_helgrind = $(DEFAULT_CXX)
+LD_helgrind = $(DEFAULT_CC)
+LDXX_helgrind = $(DEFAULT_CXX)
+CPPFLAGS_helgrind = -O0
+LDFLAGS_helgrind = -rdynamic
+DEFINES_helgrind = _DEBUG DEBUG
+DEFINES_helgrind += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=20
 
-VALID_CONFIG_dbg = 1
-CC_dbg = $(DEFAULT_CC)
-CXX_dbg = $(DEFAULT_CXX)
-LD_dbg = $(DEFAULT_CC)
-LDXX_dbg = $(DEFAULT_CXX)
-CPPFLAGS_dbg = -O0
-LDFLAGS_dbg = -rdynamic
-DEFINES_dbg = _DEBUG DEBUG
-
-VALID_CONFIG_mutrace = 1
-CC_mutrace = $(DEFAULT_CC)
-CXX_mutrace = $(DEFAULT_CXX)
-LD_mutrace = $(DEFAULT_CC)
-LDXX_mutrace = $(DEFAULT_CXX)
-CPPFLAGS_mutrace = -O0
-LDFLAGS_mutrace = -rdynamic
-DEFINES_mutrace = _DEBUG DEBUG
-
-VALID_CONFIG_valgrind = 1
-REQUIRE_CUSTOM_LIBRARIES_valgrind = 1
-CC_valgrind = $(DEFAULT_CC)
-CXX_valgrind = $(DEFAULT_CXX)
-LD_valgrind = $(DEFAULT_CC)
-LDXX_valgrind = $(DEFAULT_CXX)
-CPPFLAGS_valgrind = -O0
-LDFLAGS_valgrind = -rdynamic
-DEFINES_valgrind = _DEBUG DEBUG GRPC_TEST_SLOWDOWN_BUILD_FACTOR=20
-
-VALID_CONFIG_tsan = 1
-REQUIRE_CUSTOM_LIBRARIES_tsan = 1
-CC_tsan = clang
-CXX_tsan = clang++
-LD_tsan = clang
-LDXX_tsan = clang++
-CFLAGS_tsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -fPIE -pie
-CXXFLAGS_tsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -fPIE -pie
-LDFLAGS_tsan = -fsanitize=thread -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
-DEFINES_tsan = NDEBUG GRPC_TEST_SLOWDOWN_BUILD_FACTOR=10
-
-VALID_CONFIG_asan = 1
-REQUIRE_CUSTOM_LIBRARIES_asan = 1
-CC_asan = clang
-CXX_asan = clang++
-LD_asan = clang
-LDXX_asan = clang++
-CFLAGS_asan = -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
-CXXFLAGS_asan = -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
-LDFLAGS_asan = -fsanitize=address
-DEFINES_asan = GRPC_TEST_SLOWDOWN_BUILD_FACTOR=3
-
-VALID_CONFIG_msan = 1
-REQUIRE_CUSTOM_LIBRARIES_msan = 1
-CC_msan = clang
-CXX_msan = clang++-libc++
-LD_msan = clang
-LDXX_msan = clang++-libc++
-CFLAGS_msan = -O0 -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -Wno-unused-command-line-argument -fPIE -pie
-CXXFLAGS_msan = -O0 -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -Wno-unused-command-line-argument -fPIE -pie
-LDFLAGS_msan = -fsanitize=memory -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
-DEFINES_msan = NDEBUG GRPC_TEST_SLOWDOWN_BUILD_FACTOR=4
+VALID_CONFIG_asan-noleaks = 1
+REQUIRE_CUSTOM_LIBRARIES_asan-noleaks = 1
+CC_asan-noleaks = clang
+CXX_asan-noleaks = clang++
+LD_asan-noleaks = clang
+LDXX_asan-noleaks = clang++
+CFLAGS_asan-noleaks = -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
+CXXFLAGS_asan-noleaks = -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
+LDFLAGS_asan-noleaks = -fsanitize=address
+DEFINES_asan-noleaks += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=1.5
 
 VALID_CONFIG_ubsan = 1
 REQUIRE_CUSTOM_LIBRARIES_ubsan = 1
@@ -186,7 +136,25 @@
 CFLAGS_ubsan = -O1 -fsanitize=undefined -fno-omit-frame-pointer -Wno-unused-command-line-argument
 CXXFLAGS_ubsan = -O1 -fsanitize=undefined -fno-omit-frame-pointer -Wno-unused-command-line-argument
 LDFLAGS_ubsan = -fsanitize=undefined
-DEFINES_ubsan = NDEBUG GRPC_TEST_SLOWDOWN_BUILD_FACTOR=3
+DEFINES_ubsan = NDEBUG
+DEFINES_ubsan += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=1.5
+
+VALID_CONFIG_dbg = 1
+CC_dbg = $(DEFAULT_CC)
+CXX_dbg = $(DEFAULT_CXX)
+LD_dbg = $(DEFAULT_CC)
+LDXX_dbg = $(DEFAULT_CXX)
+CPPFLAGS_dbg = -O0
+LDFLAGS_dbg = -rdynamic
+DEFINES_dbg = _DEBUG DEBUG
+
+VALID_CONFIG_stapprof = 1
+CC_stapprof = $(DEFAULT_CC)
+CXX_stapprof = $(DEFAULT_CXX)
+LD_stapprof = $(DEFAULT_CC)
+LDXX_stapprof = $(DEFAULT_CXX)
+CPPFLAGS_stapprof = -O2 -DGRPC_STAP_PROFILER
+DEFINES_stapprof = NDEBUG
 
 VALID_CONFIG_gcov = 1
 CC_gcov = gcc
@@ -198,6 +166,60 @@
 LDFLAGS_gcov = -fprofile-arcs -ftest-coverage -rdynamic
 DEFINES_gcov = _DEBUG DEBUG GPR_GCOV
 
+VALID_CONFIG_memcheck = 1
+CC_memcheck = $(DEFAULT_CC)
+CXX_memcheck = $(DEFAULT_CXX)
+LD_memcheck = $(DEFAULT_CC)
+LDXX_memcheck = $(DEFAULT_CXX)
+CPPFLAGS_memcheck = -O0
+LDFLAGS_memcheck = -rdynamic
+DEFINES_memcheck = _DEBUG DEBUG
+DEFINES_memcheck += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=10
+
+VALID_CONFIG_asan = 1
+REQUIRE_CUSTOM_LIBRARIES_asan = 1
+CC_asan = clang
+CXX_asan = clang++
+LD_asan = clang
+LDXX_asan = clang++
+CFLAGS_asan = -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
+CXXFLAGS_asan = -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
+LDFLAGS_asan = -fsanitize=address
+DEFINES_asan += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=1.5
+
+VALID_CONFIG_tsan = 1
+REQUIRE_CUSTOM_LIBRARIES_tsan = 1
+CC_tsan = clang
+CXX_tsan = clang++
+LD_tsan = clang
+LDXX_tsan = clang++
+CFLAGS_tsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -fPIE -pie
+CXXFLAGS_tsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -fPIE -pie
+LDFLAGS_tsan = -fsanitize=thread -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
+DEFINES_tsan += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=2
+
+VALID_CONFIG_msan = 1
+REQUIRE_CUSTOM_LIBRARIES_msan = 1
+CC_msan = clang
+CXX_msan = clang++
+LD_msan = clang
+LDXX_msan = clang++
+CFLAGS_msan = -O0 -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -Wno-unused-command-line-argument -fPIE -pie
+CXXFLAGS_msan = -O0 -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -Wno-unused-command-line-argument -fPIE -pie
+LDFLAGS_msan = -fsanitize=memory -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
+DEFINES_msan = NDEBUG
+DEFINES_msan += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=1.5
+
+VALID_CONFIG_mutrace = 1
+CC_mutrace = $(DEFAULT_CC)
+CXX_mutrace = $(DEFAULT_CXX)
+LD_mutrace = $(DEFAULT_CC)
+LDXX_mutrace = $(DEFAULT_CXX)
+CPPFLAGS_mutrace = -O0
+LDFLAGS_mutrace = -rdynamic
+DEFINES_mutrace = _DEBUG DEBUG
+
+
 
 # General settings.
 # You may want to change these depending on your system.
@@ -515,15 +537,22 @@
 PC_LIBS_GRPC =
 
 ifeq ($(HAS_SYSTEM_ZLIB),false)
-ifeq ($(HAS_EMBEDDED_ZLIB),true)
-ZLIB_DEP = $(LIBDIR)/$(CONFIG)/zlib/libz.a
-ZLIB_MERGE_LIBS = $(LIBDIR)/$(CONFIG)/zlib/libz.a
-CPPFLAGS += -Ithird_party/zlib
-LDFLAGS += -L$(LIBDIR)/$(CONFIG)/zlib
+ifeq ($(HAS_EMBEDDED_ZLIB), true)
+EMBED_ZLIB ?= true
 else
 DEP_MISSING += zlib
+EMBED_ZLIB ?= broken
 endif
 else
+EMBED_ZLIB ?= false
+endif
+
+ifeq ($(EMBED_ZLIB),true)
+ZLIB_DEP = $(LIBDIR)/$(CONFIG)/libz.a
+ZLIB_MERGE_LIBS = $(LIBDIR)/$(CONFIG)/libz.a
+CPPFLAGS += -Ithird_party/zlib
+LDFLAGS += -L$(LIBDIR)/$(CONFIG)/zlib
+else
 ifeq ($(HAS_PKG_CONFIG),true)
 CPPFLAGS += $(shell $(PKG_CONFIG) --cflags zlib)
 LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L zlib)
@@ -878,6 +907,7 @@
 sockaddr_resolver_test: $(BINDIR)/$(CONFIG)/sockaddr_resolver_test
 sockaddr_utils_test: $(BINDIR)/$(CONFIG)/sockaddr_utils_test
 socket_utils_test: $(BINDIR)/$(CONFIG)/socket_utils_test
+tag_set_test: $(BINDIR)/$(CONFIG)/tag_set_test
 tcp_client_posix_test: $(BINDIR)/$(CONFIG)/tcp_client_posix_test
 tcp_posix_test: $(BINDIR)/$(CONFIG)/tcp_posix_test
 tcp_server_posix_test: $(BINDIR)/$(CONFIG)/tcp_server_posix_test
@@ -975,6 +1005,18 @@
 boringssl_v3name_test: $(BINDIR)/$(CONFIG)/boringssl_v3name_test
 boringssl_pqueue_test: $(BINDIR)/$(CONFIG)/boringssl_pqueue_test
 boringssl_ssl_test: $(BINDIR)/$(CONFIG)/boringssl_ssl_test
+badreq_bad_client_test: $(BINDIR)/$(CONFIG)/badreq_bad_client_test
+connection_prefix_bad_client_test: $(BINDIR)/$(CONFIG)/connection_prefix_bad_client_test
+headers_bad_client_test: $(BINDIR)/$(CONFIG)/headers_bad_client_test
+initial_settings_frame_bad_client_test: $(BINDIR)/$(CONFIG)/initial_settings_frame_bad_client_test
+server_registered_method_bad_client_test: $(BINDIR)/$(CONFIG)/server_registered_method_bad_client_test
+simple_request_bad_client_test: $(BINDIR)/$(CONFIG)/simple_request_bad_client_test
+unknown_frame_bad_client_test: $(BINDIR)/$(CONFIG)/unknown_frame_bad_client_test
+window_overflow_bad_client_test: $(BINDIR)/$(CONFIG)/window_overflow_bad_client_test
+bad_ssl_alpn_server: $(BINDIR)/$(CONFIG)/bad_ssl_alpn_server
+bad_ssl_cert_server: $(BINDIR)/$(CONFIG)/bad_ssl_cert_server
+bad_ssl_alpn_test: $(BINDIR)/$(CONFIG)/bad_ssl_alpn_test
+bad_ssl_cert_test: $(BINDIR)/$(CONFIG)/bad_ssl_cert_test
 h2_census_test: $(BINDIR)/$(CONFIG)/h2_census_test
 h2_compress_test: $(BINDIR)/$(CONFIG)/h2_compress_test
 h2_fakesec_test: $(BINDIR)/$(CONFIG)/h2_fakesec_test
@@ -1006,18 +1048,6 @@
 h2_uchannel_nosec_test: $(BINDIR)/$(CONFIG)/h2_uchannel_nosec_test
 h2_uds_nosec_test: $(BINDIR)/$(CONFIG)/h2_uds_nosec_test
 h2_uds+poll_nosec_test: $(BINDIR)/$(CONFIG)/h2_uds+poll_nosec_test
-badreq_bad_client_test: $(BINDIR)/$(CONFIG)/badreq_bad_client_test
-connection_prefix_bad_client_test: $(BINDIR)/$(CONFIG)/connection_prefix_bad_client_test
-headers_bad_client_test: $(BINDIR)/$(CONFIG)/headers_bad_client_test
-initial_settings_frame_bad_client_test: $(BINDIR)/$(CONFIG)/initial_settings_frame_bad_client_test
-server_registered_method_bad_client_test: $(BINDIR)/$(CONFIG)/server_registered_method_bad_client_test
-simple_request_bad_client_test: $(BINDIR)/$(CONFIG)/simple_request_bad_client_test
-unknown_frame_bad_client_test: $(BINDIR)/$(CONFIG)/unknown_frame_bad_client_test
-window_overflow_bad_client_test: $(BINDIR)/$(CONFIG)/window_overflow_bad_client_test
-bad_ssl_alpn_server: $(BINDIR)/$(CONFIG)/bad_ssl_alpn_server
-bad_ssl_cert_server: $(BINDIR)/$(CONFIG)/bad_ssl_cert_server
-bad_ssl_alpn_test: $(BINDIR)/$(CONFIG)/bad_ssl_alpn_test
-bad_ssl_cert_test: $(BINDIR)/$(CONFIG)/bad_ssl_cert_test
 
 run_dep_checks:
 	$(OPENSSL_ALPN_CHECK_CMD) || true
@@ -1028,14 +1058,6 @@
 	$(PROTOC_CHECK_VERSION_CMD) || true
 	$(ZOOKEEPER_CHECK_CMD) || true
 
-$(LIBDIR)/$(CONFIG)/zlib/libz.a:
-	$(E) "[MAKE]    Building zlib"
-	$(Q)(cd third_party/zlib ; CC="$(CC)" CFLAGS="$(CFLAGS_$(CONFIG)) $(PIC_CPPFLAGS) -fvisibility=hidden $(CPPFLAGS_$(CONFIG)) $(ZLIB_CFLAGS_EXTRA)" ./configure --static)
-	$(Q)$(MAKE) -C third_party/zlib clean
-	$(Q)$(MAKE) -C third_party/zlib
-	$(Q)mkdir -p $(LIBDIR)/$(CONFIG)/zlib
-	$(Q)cp third_party/zlib/libz.a $(LIBDIR)/$(CONFIG)/zlib
-
 third_party/protobuf/configure:
 	$(E) "[AUTOGEN] Preparing protobuf"
 	$(Q)(cd third_party/protobuf ; autoreconf -f -i -Wall,no-obsolete)
@@ -1082,7 +1104,7 @@
 
 privatelibs: privatelibs_c privatelibs_cxx
 
-privatelibs_c:  $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libreconnect_server.a $(LIBDIR)/$(CONFIG)/libtest_tcp_server.a $(LIBDIR)/$(CONFIG)/libend2end_tests.a $(LIBDIR)/$(CONFIG)/libend2end_nosec_tests.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a
+privatelibs_c:  $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libreconnect_server.a $(LIBDIR)/$(CONFIG)/libtest_tcp_server.a $(LIBDIR)/$(CONFIG)/libz.a $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libend2end_tests.a $(LIBDIR)/$(CONFIG)/libend2end_nosec_tests.a $(LIBDIR)/$(CONFIG)/libend2end_certs.a
 pc_gpr: $(LIBDIR)/$(CONFIG)/pkgconfig/gpr.pc
 
 pc_c: $(LIBDIR)/$(CONFIG)/pkgconfig/grpc.pc
@@ -1185,6 +1207,7 @@
   $(BINDIR)/$(CONFIG)/sockaddr_resolver_test \
   $(BINDIR)/$(CONFIG)/sockaddr_utils_test \
   $(BINDIR)/$(CONFIG)/socket_utils_test \
+  $(BINDIR)/$(CONFIG)/tag_set_test \
   $(BINDIR)/$(CONFIG)/tcp_client_posix_test \
   $(BINDIR)/$(CONFIG)/tcp_posix_test \
   $(BINDIR)/$(CONFIG)/tcp_server_posix_test \
@@ -1200,6 +1223,18 @@
   $(BINDIR)/$(CONFIG)/uri_parser_test \
   $(BINDIR)/$(CONFIG)/workqueue_test \
   $(BINDIR)/$(CONFIG)/public_headers_must_be_c89 \
+  $(BINDIR)/$(CONFIG)/badreq_bad_client_test \
+  $(BINDIR)/$(CONFIG)/connection_prefix_bad_client_test \
+  $(BINDIR)/$(CONFIG)/headers_bad_client_test \
+  $(BINDIR)/$(CONFIG)/initial_settings_frame_bad_client_test \
+  $(BINDIR)/$(CONFIG)/server_registered_method_bad_client_test \
+  $(BINDIR)/$(CONFIG)/simple_request_bad_client_test \
+  $(BINDIR)/$(CONFIG)/unknown_frame_bad_client_test \
+  $(BINDIR)/$(CONFIG)/window_overflow_bad_client_test \
+  $(BINDIR)/$(CONFIG)/bad_ssl_alpn_server \
+  $(BINDIR)/$(CONFIG)/bad_ssl_cert_server \
+  $(BINDIR)/$(CONFIG)/bad_ssl_alpn_test \
+  $(BINDIR)/$(CONFIG)/bad_ssl_cert_test \
   $(BINDIR)/$(CONFIG)/h2_census_test \
   $(BINDIR)/$(CONFIG)/h2_compress_test \
   $(BINDIR)/$(CONFIG)/h2_fakesec_test \
@@ -1231,18 +1266,6 @@
   $(BINDIR)/$(CONFIG)/h2_uchannel_nosec_test \
   $(BINDIR)/$(CONFIG)/h2_uds_nosec_test \
   $(BINDIR)/$(CONFIG)/h2_uds+poll_nosec_test \
-  $(BINDIR)/$(CONFIG)/badreq_bad_client_test \
-  $(BINDIR)/$(CONFIG)/connection_prefix_bad_client_test \
-  $(BINDIR)/$(CONFIG)/headers_bad_client_test \
-  $(BINDIR)/$(CONFIG)/initial_settings_frame_bad_client_test \
-  $(BINDIR)/$(CONFIG)/server_registered_method_bad_client_test \
-  $(BINDIR)/$(CONFIG)/simple_request_bad_client_test \
-  $(BINDIR)/$(CONFIG)/unknown_frame_bad_client_test \
-  $(BINDIR)/$(CONFIG)/window_overflow_bad_client_test \
-  $(BINDIR)/$(CONFIG)/bad_ssl_alpn_server \
-  $(BINDIR)/$(CONFIG)/bad_ssl_cert_server \
-  $(BINDIR)/$(CONFIG)/bad_ssl_alpn_test \
-  $(BINDIR)/$(CONFIG)/bad_ssl_cert_test \
 
 
 buildtests_cxx: buildtests_zookeeper privatelibs_cxx \
@@ -1478,6 +1501,8 @@
 	$(Q) $(BINDIR)/$(CONFIG)/sockaddr_utils_test || ( echo test sockaddr_utils_test failed ; exit 1 )
 	$(E) "[RUN]     Testing socket_utils_test"
 	$(Q) $(BINDIR)/$(CONFIG)/socket_utils_test || ( echo test socket_utils_test failed ; exit 1 )
+	$(E) "[RUN]     Testing tag_set_test"
+	$(Q) $(BINDIR)/$(CONFIG)/tag_set_test || ( echo test tag_set_test failed ; exit 1 )
 	$(E) "[RUN]     Testing tcp_client_posix_test"
 	$(Q) $(BINDIR)/$(CONFIG)/tcp_client_posix_test || ( echo test tcp_client_posix_test failed ; exit 1 )
 	$(E) "[RUN]     Testing tcp_posix_test"
@@ -2458,6 +2483,7 @@
     src/core/census/context.c \
     src/core/census/initialize.c \
     src/core/census/operation.c \
+    src/core/census/tag_set.c \
     src/core/census/tracing.c \
 
 PUBLIC_HEADERS_C += \
@@ -2761,6 +2787,7 @@
     src/core/census/context.c \
     src/core/census/initialize.c \
     src/core/census/operation.c \
+    src/core/census/tag_set.c \
     src/core/census/tracing.c \
 
 PUBLIC_HEADERS_C += \
@@ -3598,10 +3625,10 @@
 
 LIBQPS_SRC = \
     $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc \
-    $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc \
     $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc \
-    $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc \
     $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc \
+    $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc \
+    $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc \
     $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc \
     test/cpp/qps/client_async.cc \
     test/cpp/qps/client_sync.cc \
@@ -3657,16 +3684,16 @@
 -include $(LIBQPS_OBJS:.o=.dep)
 endif
 endif
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/client_async.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/client_sync.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/driver.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/perf_db_client.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/qps_worker.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/report.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/server_async.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/server_sync.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/qps/timer.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
-$(OBJDIR)/$(CONFIG)/test/cpp/util/benchmark_config.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/client_async.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/client_sync.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/driver.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/perf_db_client.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/qps_worker.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/report.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/server_async.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/server_sync.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/qps/timer.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
+$(OBJDIR)/$(CONFIG)/test/cpp/util/benchmark_config.o: $(GENDIR)/src/proto/grpc/testing/messages.pb.cc $(GENDIR)/src/proto/grpc/testing/messages.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.pb.cc $(GENDIR)/src/proto/grpc/testing/payloads.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.pb.cc $(GENDIR)/src/proto/grpc/testing/stats.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/control.pb.cc $(GENDIR)/src/proto/grpc/testing/control.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/services.pb.cc $(GENDIR)/src/proto/grpc/testing/services.grpc.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.pb.cc $(GENDIR)/src/proto/grpc/testing/perf_db.grpc.pb.cc
 
 
 LIBGRPC_CSHARP_EXT_SRC = \
@@ -5439,6 +5466,121 @@
 endif
 
 
+LIBZ_SRC = \
+    third_party/zlib/adler32.c \
+    third_party/zlib/compress.c \
+    third_party/zlib/crc32.c \
+    third_party/zlib/deflate.c \
+    third_party/zlib/gzclose.c \
+    third_party/zlib/gzlib.c \
+    third_party/zlib/gzread.c \
+    third_party/zlib/gzwrite.c \
+    third_party/zlib/infback.c \
+    third_party/zlib/inffast.c \
+    third_party/zlib/inflate.c \
+    third_party/zlib/inftrees.c \
+    third_party/zlib/trees.c \
+    third_party/zlib/uncompr.c \
+    third_party/zlib/zutil.c \
+
+
+LIBZ_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBZ_SRC))))
+
+$(LIBZ_OBJS): CFLAGS := $(CFLAGS) -Wno-sign-conversion -Wno-conversion -Wno-unused-value -Wno-implicit-function-declaration -fvisibility=hidden
+
+$(LIBDIR)/$(CONFIG)/libz.a: $(ZLIB_DEP) $(OPENSSL_DEP)  $(LIBZ_OBJS)
+	$(E) "[AR]      Creating $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libz.a
+	$(Q) $(AR) rcs $(LIBDIR)/$(CONFIG)/libz.a $(LIBZ_OBJS)
+ifeq ($(SYSTEM),Darwin)
+	$(Q) ranlib $(LIBDIR)/$(CONFIG)/libz.a
+endif
+
+
+
+
+ifneq ($(NO_DEPS),true)
+-include $(LIBZ_OBJS:.o=.dep)
+endif
+
+
+LIBBAD_CLIENT_TEST_SRC = \
+    test/core/bad_client/bad_client.c \
+
+
+LIBBAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBBAD_CLIENT_TEST_SRC))))
+
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure libraries if you don't have OpenSSL.
+
+$(LIBDIR)/$(CONFIG)/libbad_client_test.a: openssl_dep_error
+
+
+else
+
+
+$(LIBDIR)/$(CONFIG)/libbad_client_test.a: $(ZLIB_DEP) $(OPENSSL_DEP) $(LIBBAD_CLIENT_TEST_OBJS)
+	$(E) "[AR]      Creating $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libbad_client_test.a
+	$(Q) $(AR) rcs $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBBAD_CLIENT_TEST_OBJS)
+ifeq ($(SYSTEM),Darwin)
+	$(Q) ranlib $(LIBDIR)/$(CONFIG)/libbad_client_test.a
+endif
+
+
+
+
+endif
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(LIBBAD_CLIENT_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
+LIBBAD_SSL_TEST_SERVER_SRC = \
+    test/core/bad_ssl/server.c \
+
+
+LIBBAD_SSL_TEST_SERVER_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBBAD_SSL_TEST_SERVER_SRC))))
+
+
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure libraries if you don't have OpenSSL.
+
+$(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a: openssl_dep_error
+
+
+else
+
+
+$(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a: $(ZLIB_DEP) $(OPENSSL_DEP) $(LIBBAD_SSL_TEST_SERVER_OBJS)
+	$(E) "[AR]      Creating $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a
+	$(Q) $(AR) rcs $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBBAD_SSL_TEST_SERVER_OBJS)
+ifeq ($(SYSTEM),Darwin)
+	$(Q) ranlib $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a
+endif
+
+
+
+
+endif
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(LIBBAD_SSL_TEST_SERVER_OBJS:.o=.dep)
+endif
+endif
+
+
 LIBEND2END_TESTS_SRC = \
     test/core/end2end/end2end_tests.c \
     test/core/end2end/tests/bad_hostname.c \
@@ -5612,82 +5754,6 @@
 endif
 
 
-LIBBAD_CLIENT_TEST_SRC = \
-    test/core/bad_client/bad_client.c \
-
-
-LIBBAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBBAD_CLIENT_TEST_SRC))))
-
-
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure libraries if you don't have OpenSSL.
-
-$(LIBDIR)/$(CONFIG)/libbad_client_test.a: openssl_dep_error
-
-
-else
-
-
-$(LIBDIR)/$(CONFIG)/libbad_client_test.a: $(ZLIB_DEP) $(OPENSSL_DEP) $(LIBBAD_CLIENT_TEST_OBJS)
-	$(E) "[AR]      Creating $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libbad_client_test.a
-	$(Q) $(AR) rcs $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBBAD_CLIENT_TEST_OBJS)
-ifeq ($(SYSTEM),Darwin)
-	$(Q) ranlib $(LIBDIR)/$(CONFIG)/libbad_client_test.a
-endif
-
-
-
-
-endif
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(LIBBAD_CLIENT_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
-LIBBAD_SSL_TEST_SERVER_SRC = \
-    test/core/bad_ssl/server.c \
-
-
-LIBBAD_SSL_TEST_SERVER_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(LIBBAD_SSL_TEST_SERVER_SRC))))
-
-
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure libraries if you don't have OpenSSL.
-
-$(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a: openssl_dep_error
-
-
-else
-
-
-$(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a: $(ZLIB_DEP) $(OPENSSL_DEP) $(LIBBAD_SSL_TEST_SERVER_OBJS)
-	$(E) "[AR]      Creating $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) rm -f $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a
-	$(Q) $(AR) rcs $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBBAD_SSL_TEST_SERVER_OBJS)
-ifeq ($(SYSTEM),Darwin)
-	$(Q) ranlib $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a
-endif
-
-
-
-
-endif
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(LIBBAD_SSL_TEST_SERVER_OBJS:.o=.dep)
-endif
-endif
-
-
 
 # All of the test targets, and protoc plugins
 
@@ -8284,6 +8350,38 @@
 endif
 
 
+TAG_SET_TEST_SRC = \
+    test/core/census/tag_set_test.c \
+
+TAG_SET_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(TAG_SET_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/tag_set_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/tag_set_test: $(TAG_SET_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(TAG_SET_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/tag_set_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/census/tag_set_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_tag_set_test: $(TAG_SET_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(TAG_SET_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 TCP_CLIENT_POSIX_TEST_SRC = \
     test/core/iomgr/tcp_client_posix_test.c \
 
@@ -11687,6 +11785,294 @@
 
 
 
+BADREQ_BAD_CLIENT_TEST_SRC = \
+    test/core/bad_client/tests/badreq.c \
+
+BADREQ_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BADREQ_BAD_CLIENT_TEST_SRC))))
+
+
+$(BINDIR)/$(CONFIG)/badreq_bad_client_test: $(BADREQ_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(BADREQ_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/badreq_bad_client_test
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/badreq.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_badreq_bad_client_test: $(BADREQ_BAD_CLIENT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_DEPS),true)
+-include $(BADREQ_BAD_CLIENT_TEST_OBJS:.o=.dep)
+endif
+
+
+CONNECTION_PREFIX_BAD_CLIENT_TEST_SRC = \
+    test/core/bad_client/tests/connection_prefix.c \
+
+CONNECTION_PREFIX_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CONNECTION_PREFIX_BAD_CLIENT_TEST_SRC))))
+
+
+$(BINDIR)/$(CONFIG)/connection_prefix_bad_client_test: $(CONNECTION_PREFIX_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(CONNECTION_PREFIX_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/connection_prefix_bad_client_test
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/connection_prefix.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_connection_prefix_bad_client_test: $(CONNECTION_PREFIX_BAD_CLIENT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_DEPS),true)
+-include $(CONNECTION_PREFIX_BAD_CLIENT_TEST_OBJS:.o=.dep)
+endif
+
+
+HEADERS_BAD_CLIENT_TEST_SRC = \
+    test/core/bad_client/tests/headers.c \
+
+HEADERS_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(HEADERS_BAD_CLIENT_TEST_SRC))))
+
+
+$(BINDIR)/$(CONFIG)/headers_bad_client_test: $(HEADERS_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(HEADERS_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/headers_bad_client_test
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/headers.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_headers_bad_client_test: $(HEADERS_BAD_CLIENT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_DEPS),true)
+-include $(HEADERS_BAD_CLIENT_TEST_OBJS:.o=.dep)
+endif
+
+
+INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_SRC = \
+    test/core/bad_client/tests/initial_settings_frame.c \
+
+INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_SRC))))
+
+
+$(BINDIR)/$(CONFIG)/initial_settings_frame_bad_client_test: $(INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/initial_settings_frame_bad_client_test
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/initial_settings_frame.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_initial_settings_frame_bad_client_test: $(INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_DEPS),true)
+-include $(INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_OBJS:.o=.dep)
+endif
+
+
+SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_SRC = \
+    test/core/bad_client/tests/server_registered_method.c \
+
+SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_SRC))))
+
+
+$(BINDIR)/$(CONFIG)/server_registered_method_bad_client_test: $(SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/server_registered_method_bad_client_test
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/server_registered_method.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_server_registered_method_bad_client_test: $(SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_DEPS),true)
+-include $(SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_OBJS:.o=.dep)
+endif
+
+
+SIMPLE_REQUEST_BAD_CLIENT_TEST_SRC = \
+    test/core/bad_client/tests/simple_request.c \
+
+SIMPLE_REQUEST_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(SIMPLE_REQUEST_BAD_CLIENT_TEST_SRC))))
+
+
+$(BINDIR)/$(CONFIG)/simple_request_bad_client_test: $(SIMPLE_REQUEST_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(SIMPLE_REQUEST_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/simple_request_bad_client_test
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/simple_request.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_simple_request_bad_client_test: $(SIMPLE_REQUEST_BAD_CLIENT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_DEPS),true)
+-include $(SIMPLE_REQUEST_BAD_CLIENT_TEST_OBJS:.o=.dep)
+endif
+
+
+UNKNOWN_FRAME_BAD_CLIENT_TEST_SRC = \
+    test/core/bad_client/tests/unknown_frame.c \
+
+UNKNOWN_FRAME_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(UNKNOWN_FRAME_BAD_CLIENT_TEST_SRC))))
+
+
+$(BINDIR)/$(CONFIG)/unknown_frame_bad_client_test: $(UNKNOWN_FRAME_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(UNKNOWN_FRAME_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/unknown_frame_bad_client_test
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/unknown_frame.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_unknown_frame_bad_client_test: $(UNKNOWN_FRAME_BAD_CLIENT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_DEPS),true)
+-include $(UNKNOWN_FRAME_BAD_CLIENT_TEST_OBJS:.o=.dep)
+endif
+
+
+WINDOW_OVERFLOW_BAD_CLIENT_TEST_SRC = \
+    test/core/bad_client/tests/window_overflow.c \
+
+WINDOW_OVERFLOW_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(WINDOW_OVERFLOW_BAD_CLIENT_TEST_SRC))))
+
+
+$(BINDIR)/$(CONFIG)/window_overflow_bad_client_test: $(WINDOW_OVERFLOW_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(WINDOW_OVERFLOW_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/window_overflow_bad_client_test
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/window_overflow.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_window_overflow_bad_client_test: $(WINDOW_OVERFLOW_BAD_CLIENT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_DEPS),true)
+-include $(WINDOW_OVERFLOW_BAD_CLIENT_TEST_OBJS:.o=.dep)
+endif
+
+
+BAD_SSL_ALPN_SERVER_SRC = \
+    test/core/bad_ssl/servers/alpn.c \
+
+BAD_SSL_ALPN_SERVER_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BAD_SSL_ALPN_SERVER_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/bad_ssl_alpn_server: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/bad_ssl_alpn_server: $(BAD_SSL_ALPN_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(BAD_SSL_ALPN_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/bad_ssl_alpn_server
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_ssl/servers/alpn.o:  $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_bad_ssl_alpn_server: $(BAD_SSL_ALPN_SERVER_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(BAD_SSL_ALPN_SERVER_OBJS:.o=.dep)
+endif
+endif
+
+
+BAD_SSL_CERT_SERVER_SRC = \
+    test/core/bad_ssl/servers/cert.c \
+
+BAD_SSL_CERT_SERVER_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BAD_SSL_CERT_SERVER_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/bad_ssl_cert_server: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/bad_ssl_cert_server: $(BAD_SSL_CERT_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(BAD_SSL_CERT_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/bad_ssl_cert_server
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_ssl/servers/cert.o:  $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_bad_ssl_cert_server: $(BAD_SSL_CERT_SERVER_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(BAD_SSL_CERT_SERVER_OBJS:.o=.dep)
+endif
+endif
+
+
+BAD_SSL_ALPN_TEST_SRC = \
+    test/core/bad_ssl/bad_ssl_test.c \
+
+BAD_SSL_ALPN_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BAD_SSL_ALPN_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/bad_ssl_alpn_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/bad_ssl_alpn_test: $(BAD_SSL_ALPN_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(BAD_SSL_ALPN_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/bad_ssl_alpn_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_ssl/bad_ssl_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_bad_ssl_alpn_test: $(BAD_SSL_ALPN_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(BAD_SSL_ALPN_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
+BAD_SSL_CERT_TEST_SRC = \
+    test/core/bad_ssl/bad_ssl_test.c \
+
+BAD_SSL_CERT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BAD_SSL_CERT_TEST_SRC))))
+ifeq ($(NO_SECURE),true)
+
+# You can't build secure targets if you don't have OpenSSL.
+
+$(BINDIR)/$(CONFIG)/bad_ssl_cert_test: openssl_dep_error
+
+else
+
+
+
+$(BINDIR)/$(CONFIG)/bad_ssl_cert_test: $(BAD_SSL_CERT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+	$(E) "[LD]      Linking $@"
+	$(Q) mkdir -p `dirname $@`
+	$(Q) $(LD) $(LDFLAGS) $(BAD_SSL_CERT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/bad_ssl_cert_test
+
+endif
+
+$(OBJDIR)/$(CONFIG)/test/core/bad_ssl/bad_ssl_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
+
+deps_bad_ssl_cert_test: $(BAD_SSL_CERT_TEST_OBJS:.o=.dep)
+
+ifneq ($(NO_SECURE),true)
+ifneq ($(NO_DEPS),true)
+-include $(BAD_SSL_CERT_TEST_OBJS:.o=.dep)
+endif
+endif
+
+
 H2_CENSUS_TEST_SRC = \
     test/core/end2end/fixtures/h2_census.c \
 
@@ -12523,294 +12909,6 @@
 endif
 
 
-BADREQ_BAD_CLIENT_TEST_SRC = \
-    test/core/bad_client/tests/badreq.c \
-
-BADREQ_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BADREQ_BAD_CLIENT_TEST_SRC))))
-
-
-$(BINDIR)/$(CONFIG)/badreq_bad_client_test: $(BADREQ_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(BADREQ_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/badreq_bad_client_test
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/badreq.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_badreq_bad_client_test: $(BADREQ_BAD_CLIENT_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_DEPS),true)
--include $(BADREQ_BAD_CLIENT_TEST_OBJS:.o=.dep)
-endif
-
-
-CONNECTION_PREFIX_BAD_CLIENT_TEST_SRC = \
-    test/core/bad_client/tests/connection_prefix.c \
-
-CONNECTION_PREFIX_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(CONNECTION_PREFIX_BAD_CLIENT_TEST_SRC))))
-
-
-$(BINDIR)/$(CONFIG)/connection_prefix_bad_client_test: $(CONNECTION_PREFIX_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(CONNECTION_PREFIX_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/connection_prefix_bad_client_test
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/connection_prefix.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_connection_prefix_bad_client_test: $(CONNECTION_PREFIX_BAD_CLIENT_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_DEPS),true)
--include $(CONNECTION_PREFIX_BAD_CLIENT_TEST_OBJS:.o=.dep)
-endif
-
-
-HEADERS_BAD_CLIENT_TEST_SRC = \
-    test/core/bad_client/tests/headers.c \
-
-HEADERS_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(HEADERS_BAD_CLIENT_TEST_SRC))))
-
-
-$(BINDIR)/$(CONFIG)/headers_bad_client_test: $(HEADERS_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(HEADERS_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/headers_bad_client_test
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/headers.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_headers_bad_client_test: $(HEADERS_BAD_CLIENT_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_DEPS),true)
--include $(HEADERS_BAD_CLIENT_TEST_OBJS:.o=.dep)
-endif
-
-
-INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_SRC = \
-    test/core/bad_client/tests/initial_settings_frame.c \
-
-INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_SRC))))
-
-
-$(BINDIR)/$(CONFIG)/initial_settings_frame_bad_client_test: $(INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/initial_settings_frame_bad_client_test
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/initial_settings_frame.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_initial_settings_frame_bad_client_test: $(INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_DEPS),true)
--include $(INITIAL_SETTINGS_FRAME_BAD_CLIENT_TEST_OBJS:.o=.dep)
-endif
-
-
-SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_SRC = \
-    test/core/bad_client/tests/server_registered_method.c \
-
-SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_SRC))))
-
-
-$(BINDIR)/$(CONFIG)/server_registered_method_bad_client_test: $(SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/server_registered_method_bad_client_test
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/server_registered_method.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_server_registered_method_bad_client_test: $(SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_DEPS),true)
--include $(SERVER_REGISTERED_METHOD_BAD_CLIENT_TEST_OBJS:.o=.dep)
-endif
-
-
-SIMPLE_REQUEST_BAD_CLIENT_TEST_SRC = \
-    test/core/bad_client/tests/simple_request.c \
-
-SIMPLE_REQUEST_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(SIMPLE_REQUEST_BAD_CLIENT_TEST_SRC))))
-
-
-$(BINDIR)/$(CONFIG)/simple_request_bad_client_test: $(SIMPLE_REQUEST_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(SIMPLE_REQUEST_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/simple_request_bad_client_test
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/simple_request.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_simple_request_bad_client_test: $(SIMPLE_REQUEST_BAD_CLIENT_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_DEPS),true)
--include $(SIMPLE_REQUEST_BAD_CLIENT_TEST_OBJS:.o=.dep)
-endif
-
-
-UNKNOWN_FRAME_BAD_CLIENT_TEST_SRC = \
-    test/core/bad_client/tests/unknown_frame.c \
-
-UNKNOWN_FRAME_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(UNKNOWN_FRAME_BAD_CLIENT_TEST_SRC))))
-
-
-$(BINDIR)/$(CONFIG)/unknown_frame_bad_client_test: $(UNKNOWN_FRAME_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(UNKNOWN_FRAME_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/unknown_frame_bad_client_test
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/unknown_frame.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_unknown_frame_bad_client_test: $(UNKNOWN_FRAME_BAD_CLIENT_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_DEPS),true)
--include $(UNKNOWN_FRAME_BAD_CLIENT_TEST_OBJS:.o=.dep)
-endif
-
-
-WINDOW_OVERFLOW_BAD_CLIENT_TEST_SRC = \
-    test/core/bad_client/tests/window_overflow.c \
-
-WINDOW_OVERFLOW_BAD_CLIENT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(WINDOW_OVERFLOW_BAD_CLIENT_TEST_SRC))))
-
-
-$(BINDIR)/$(CONFIG)/window_overflow_bad_client_test: $(WINDOW_OVERFLOW_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(WINDOW_OVERFLOW_BAD_CLIENT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) -o $(BINDIR)/$(CONFIG)/window_overflow_bad_client_test
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_client/tests/window_overflow.o:  $(LIBDIR)/$(CONFIG)/libbad_client_test.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util_unsecure.a $(LIBDIR)/$(CONFIG)/libgrpc_unsecure.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_window_overflow_bad_client_test: $(WINDOW_OVERFLOW_BAD_CLIENT_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_DEPS),true)
--include $(WINDOW_OVERFLOW_BAD_CLIENT_TEST_OBJS:.o=.dep)
-endif
-
-
-BAD_SSL_ALPN_SERVER_SRC = \
-    test/core/bad_ssl/servers/alpn.c \
-
-BAD_SSL_ALPN_SERVER_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BAD_SSL_ALPN_SERVER_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/bad_ssl_alpn_server: openssl_dep_error
-
-else
-
-
-
-$(BINDIR)/$(CONFIG)/bad_ssl_alpn_server: $(BAD_SSL_ALPN_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(BAD_SSL_ALPN_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/bad_ssl_alpn_server
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_ssl/servers/alpn.o:  $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_bad_ssl_alpn_server: $(BAD_SSL_ALPN_SERVER_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(BAD_SSL_ALPN_SERVER_OBJS:.o=.dep)
-endif
-endif
-
-
-BAD_SSL_CERT_SERVER_SRC = \
-    test/core/bad_ssl/servers/cert.c \
-
-BAD_SSL_CERT_SERVER_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BAD_SSL_CERT_SERVER_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/bad_ssl_cert_server: openssl_dep_error
-
-else
-
-
-
-$(BINDIR)/$(CONFIG)/bad_ssl_cert_server: $(BAD_SSL_CERT_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(BAD_SSL_CERT_SERVER_OBJS) $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/bad_ssl_cert_server
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_ssl/servers/cert.o:  $(LIBDIR)/$(CONFIG)/libbad_ssl_test_server.a $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_bad_ssl_cert_server: $(BAD_SSL_CERT_SERVER_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(BAD_SSL_CERT_SERVER_OBJS:.o=.dep)
-endif
-endif
-
-
-BAD_SSL_ALPN_TEST_SRC = \
-    test/core/bad_ssl/bad_ssl_test.c \
-
-BAD_SSL_ALPN_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BAD_SSL_ALPN_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/bad_ssl_alpn_test: openssl_dep_error
-
-else
-
-
-
-$(BINDIR)/$(CONFIG)/bad_ssl_alpn_test: $(BAD_SSL_ALPN_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(BAD_SSL_ALPN_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/bad_ssl_alpn_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_ssl/bad_ssl_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_bad_ssl_alpn_test: $(BAD_SSL_ALPN_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(BAD_SSL_ALPN_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
-BAD_SSL_CERT_TEST_SRC = \
-    test/core/bad_ssl/bad_ssl_test.c \
-
-BAD_SSL_CERT_TEST_OBJS = $(addprefix $(OBJDIR)/$(CONFIG)/, $(addsuffix .o, $(basename $(BAD_SSL_CERT_TEST_SRC))))
-ifeq ($(NO_SECURE),true)
-
-# You can't build secure targets if you don't have OpenSSL.
-
-$(BINDIR)/$(CONFIG)/bad_ssl_cert_test: openssl_dep_error
-
-else
-
-
-
-$(BINDIR)/$(CONFIG)/bad_ssl_cert_test: $(BAD_SSL_CERT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-	$(E) "[LD]      Linking $@"
-	$(Q) mkdir -p `dirname $@`
-	$(Q) $(LD) $(LDFLAGS) $(BAD_SSL_CERT_TEST_OBJS) $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a $(LDLIBS) $(LDLIBS_SECURE) -o $(BINDIR)/$(CONFIG)/bad_ssl_cert_test
-
-endif
-
-$(OBJDIR)/$(CONFIG)/test/core/bad_ssl/bad_ssl_test.o:  $(LIBDIR)/$(CONFIG)/libgrpc_test_util.a $(LIBDIR)/$(CONFIG)/libgrpc.a $(LIBDIR)/$(CONFIG)/libgpr_test_util.a $(LIBDIR)/$(CONFIG)/libgpr.a
-
-deps_bad_ssl_cert_test: $(BAD_SSL_CERT_TEST_OBJS:.o=.dep)
-
-ifneq ($(NO_SECURE),true)
-ifneq ($(NO_DEPS),true)
--include $(BAD_SSL_CERT_TEST_OBJS:.o=.dep)
-endif
-endif
-
-
 
 
 
diff --git a/PYTHON-MANIFEST.in b/PYTHON-MANIFEST.in
index 02bd9b5..52ef1ab 100644
--- a/PYTHON-MANIFEST.in
+++ b/PYTHON-MANIFEST.in
@@ -3,6 +3,7 @@
 graft src/core
 graft include/grpc
 graft third_party/boringssl
+graft third_party/zlib
 include src/python/grpcio/commands.py
 include src/python/grpcio/grpc_core_dependencies.py
 include src/python/grpcio/README.rst
diff --git a/README.md b/README.md
index e0553ec..f894def 100644
--- a/README.md
+++ b/README.md
@@ -3,7 +3,7 @@
 [gRPC - An RPC library and framework](http://github.com/grpc/grpc)
 ===================================
 
-Copyright 2015 Google Inc.
+Copyright 2015-2016 Google Inc.
 
 #Documentation
 
diff --git a/binding.gyp b/binding.gyp
index a5e9933..f6d60b9 100644
--- a/binding.gyp
+++ b/binding.gyp
@@ -312,6 +312,7 @@
         'src/core/census/context.c',
         'src/core/census/initialize.c',
         'src/core/census/operation.c',
+        'src/core/census/tag_set.c',
         'src/core/census/tracing.c',
       ],
       "conditions": [
diff --git a/build.yaml b/build.yaml
index 61a28cb..500ec85 100644
--- a/build.yaml
+++ b/build.yaml
@@ -20,6 +20,7 @@
   - src/core/census/context.c
   - src/core/census/initialize.c
   - src/core/census/operation.c
+  - src/core/census/tag_set.c
   - src/core/census/tracing.c
 - name: grpc++_base
   public_headers:
@@ -773,10 +774,10 @@
   - test/cpp/util/benchmark_config.h
   src:
   - src/proto/grpc/testing/messages.proto
-  - src/proto/grpc/testing/control.proto
   - src/proto/grpc/testing/payloads.proto
-  - src/proto/grpc/testing/services.proto
   - src/proto/grpc/testing/stats.proto
+  - src/proto/grpc/testing/control.proto
+  - src/proto/grpc/testing/services.proto
   - src/proto/grpc/testing/perf_db.proto
   - test/cpp/qps/client_async.cc
   - test/cpp/qps/client_sync.cc
@@ -1630,6 +1631,16 @@
   - mac
   - linux
   - posix
+- name: tag_set_test
+  build: test
+  language: c
+  src:
+  - test/core/census/tag_set_test.c
+  deps:
+  - grpc_test_util
+  - grpc
+  - gpr_test_util
+  - gpr
 - name: tcp_client_posix_test
   cpu_cost: 0.5
   build: test
@@ -2481,6 +2492,112 @@
   props: false
   redist: false
   version: 1.7.0.1
+configs:
+  asan:
+    CC: clang
+    CFLAGS: -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
+    CXX: clang++
+    CXXFLAGS: -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
+    LD: clang
+    LDFLAGS: -fsanitize=address
+    LDXX: clang++
+    compile_the_world: true
+    test_environ:
+      ASAN_OPTIONS: suppressions=tools/asan_suppressions.txt:detect_leaks=1:color=always
+      LSAN_OPTIONS: suppressions=tools/asan_suppressions.txt:report_objects=1
+    timeout_multiplier: 1.5
+  asan-noleaks:
+    CC: clang
+    CFLAGS: -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
+    CXX: clang++
+    CXXFLAGS: -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
+    LD: clang
+    LDFLAGS: -fsanitize=address
+    LDXX: clang++
+    compile_the_world: true
+    test_environ:
+      ASAN_OPTIONS: detect_leaks=0:color=always
+    timeout_multiplier: 1.5
+  basicprof:
+    CPPFLAGS: -O2 -DGRPC_BASIC_PROFILER -DGRPC_TIMERS_RDTSC
+    DEFINES: NDEBUG
+  dbg:
+    CPPFLAGS: -O0
+    DEFINES: _DEBUG DEBUG
+    LDFLAGS: -rdynamic
+  gcov:
+    CC: gcc
+    CFLAGS: -O0 -fprofile-arcs -ftest-coverage -Wno-return-type
+    CXX: g++
+    CXXFLAGS: -O0 -fprofile-arcs -ftest-coverage -Wno-return-type
+    DEFINES: _DEBUG DEBUG GPR_GCOV
+    LD: gcc
+    LDFLAGS: -fprofile-arcs -ftest-coverage -rdynamic
+    LDXX: g++
+  helgrind:
+    CPPFLAGS: -O0
+    DEFINES: _DEBUG DEBUG
+    LDFLAGS: -rdynamic
+    timeout_multiplier: 20
+    valgrind: --tool=helgrind
+  memcheck:
+    CPPFLAGS: -O0
+    DEFINES: _DEBUG DEBUG
+    LDFLAGS: -rdynamic
+    timeout_multiplier: 10
+    valgrind: --tool=memcheck --leak-check=full
+  msan:
+    CC: clang
+    CFLAGS: -O0 -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer
+      -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -Wno-unused-command-line-argument
+      -fPIE -pie
+    CXX: clang++
+    CXXFLAGS: -O0 -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer
+      -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -Wno-unused-command-line-argument
+      -fPIE -pie
+    DEFINES: NDEBUG
+    LD: clang
+    LDFLAGS: -fsanitize=memory -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1
+      -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
+    LDXX: clang++
+    compile_the_world: true
+    timeout_multiplier: 1.5
+  mutrace:
+    CPPFLAGS: -O0
+    DEFINES: _DEBUG DEBUG
+    LDFLAGS: -rdynamic
+  opt:
+    CPPFLAGS: -O2
+    DEFINES: NDEBUG
+    LDFLAGS: -rdynamic
+  stapprof:
+    CPPFLAGS: -O2 -DGRPC_STAP_PROFILER
+    DEFINES: NDEBUG
+  tsan:
+    CC: clang
+    CFLAGS: -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument
+      -fPIE -pie
+    CXX: clang++
+    CXXFLAGS: -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument
+      -fPIE -pie
+    LD: clang
+    LDFLAGS: -fsanitize=thread -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
+    LDXX: clang++
+    compile_the_world: true
+    test_environ:
+      TSAN_OPTIONS: suppressions=tools/tsan_suppressions.txt:halt_on_error=1:second_deadlock_stack=1
+    timeout_multiplier: 2
+  ubsan:
+    CC: clang
+    CFLAGS: -O1 -fsanitize=undefined -fno-omit-frame-pointer -Wno-unused-command-line-argument
+    CXX: clang++
+    CXXFLAGS: -O1 -fsanitize=undefined -fno-omit-frame-pointer -Wno-unused-command-line-argument
+    DEFINES: NDEBUG
+    LD: clang
+    LDFLAGS: -fsanitize=undefined
+    LDXX: clang++
+    compile_the_world: true
+    timeout_multiplier: 1.5
 node_modules:
 - deps:
   - grpc
@@ -2519,3 +2636,4 @@
   - grpc
   - gpr
   - boringssl
+  - z
diff --git a/doc/interop-test-descriptions.md b/doc/interop-test-descriptions.md
index 53cc47b..e618e96 100644
--- a/doc/interop-test-descriptions.md
+++ b/doc/interop-test-descriptions.md
@@ -471,7 +471,7 @@
 
 The test uses `--default_service_account` with GCE service account email and
 `--oauth_scope` with the OAuth scope to use. For testing against
-grpc-test.sandbox.google.com, "https://www.googleapis.com/auth/xapi.zoo" should
+grpc-test.sandbox.googleapis.com, "https://www.googleapis.com/auth/xapi.zoo" should
 be passed in as `--oauth_scope`.
 
 Server features:
@@ -568,7 +568,7 @@
 fetch the token, `--default_service_account` can be used to pass in GCE service
 account email.
 - uses the flag `--oauth_scope` for the oauth scope.  For testing against
-grpc-test.sandbox.google.com, "https://www.googleapis.com/auth/xapi.zoo" should
+grpc-test.sandbox.googleapis.com, "https://www.googleapis.com/auth/xapi.zoo" should
 be passed as the `--oauth_scope`.
 
 Server features:
@@ -610,7 +610,7 @@
 variable GOOGLE_APPLICATION_CREDENTIALS
 - optionally uses the flag `--oauth_scope` for the oauth scope if implementator 
 wishes to use service account credential instead of JWT credential. For testing
-against grpc-test.sandbox.google.com, oauth scope 
+against grpc-test.sandbox.googleapis.com, oauth scope 
 "https://www.googleapis.com/auth/xapi.zoo" should be used.
 
 Server features:
@@ -1033,7 +1033,7 @@
 with the scope of the method being invoked.
 
 Although a general server-side feature, most test servers won't implement this
-feature. The TLS server grpc-test.sandbox.google.com:443 supports this feature.
+feature. The TLS server grpc-test.sandbox.googleapis.com:443 supports this feature.
 It requires at least the OAuth scope
 `https://www.googleapis.com/auth/xapi.zoo` for authentication to succeed.
 
diff --git a/examples/csharp/helloworld/.nuget/packages.config b/examples/csharp/helloworld/.nuget/packages.config
index 1c1f118..1cbe7e1 100644
--- a/examples/csharp/helloworld/.nuget/packages.config
+++ b/examples/csharp/helloworld/.nuget/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Grpc.Tools" version="0.7.1" />
+  <package id="Grpc.Tools" version="0.12.0" />
 </packages>
\ No newline at end of file
diff --git a/examples/csharp/helloworld/Greeter/Greeter.csproj b/examples/csharp/helloworld/Greeter/Greeter.csproj
index 2ae8620..fa1c20f 100644
--- a/examples/csharp/helloworld/Greeter/Greeter.csproj
+++ b/examples/csharp/helloworld/Greeter/Greeter.csproj
@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" />
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -13,7 +10,7 @@
     <RootNamespace>Greeter</RootNamespace>
     <AssemblyName>Greeter</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <NuGetPackageImportStamp>e423e365</NuGetPackageImportStamp>
+    <NuGetPackageImportStamp>4eea1d1c</NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -37,9 +34,8 @@
     <Reference Include="Google.Protobuf">
       <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
     </Reference>
-    <Reference Include="Grpc.Core, Version=0.7.1.0, Culture=neutral, PublicKeyToken=d754f35622e28bad, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Grpc.Core.0.7.1\lib\net45\Grpc.Core.dll</HintPath>
+    <Reference Include="Grpc.Core">
+      <HintPath>..\packages\Grpc.Core.0.12.0\lib\net45\Grpc.Core.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Interactive.Async">
@@ -57,18 +53,15 @@
     <None Include="protos\helloworld.proto" />
   </ItemGroup>
   <ItemGroup />
+  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets'))" />
   </Target>
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" />
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" />
+  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" />
+  <Import Project="..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets" Condition="Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" />
 </Project>
\ No newline at end of file
diff --git a/examples/csharp/helloworld/Greeter/packages.config b/examples/csharp/helloworld/Greeter/packages.config
index c0f7387..cabcadc 100644
--- a/examples/csharp/helloworld/Greeter/packages.config
+++ b/examples/csharp/helloworld/Greeter/packages.config
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />
-  <package id="Grpc" version="0.7.1" targetFramework="net45" />
-  <package id="Grpc.Core" version="0.7.1" targetFramework="net45" />
-  <package id="grpc.dependencies.openssl.redist" version="1.0.2.3" targetFramework="net45" />
-  <package id="grpc.dependencies.zlib.redist" version="1.2.8.9" targetFramework="net45" />
-  <package id="grpc.native.csharp_ext" version="0.11.1" targetFramework="net45" />
+  <package id="Grpc" version="0.12.0" targetFramework="net45" />
+  <package id="Grpc.Core" version="0.12.0" targetFramework="net45" />
+  <package id="grpc.dependencies.openssl.redist" version="1.0.204.1" targetFramework="net45" />
+  <package id="grpc.dependencies.zlib.redist" version="1.2.8.10" targetFramework="net45" />
+  <package id="grpc.native.csharp" version="0.12.0" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.3" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/examples/csharp/helloworld/GreeterClient/GreeterClient.csproj b/examples/csharp/helloworld/GreeterClient/GreeterClient.csproj
index af330f2..164a616 100644
--- a/examples/csharp/helloworld/GreeterClient/GreeterClient.csproj
+++ b/examples/csharp/helloworld/GreeterClient/GreeterClient.csproj
@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" />
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -13,7 +10,7 @@
     <RootNamespace>GreeterClient</RootNamespace>
     <AssemblyName>GreeterClient</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <NuGetPackageImportStamp>2dcf22af</NuGetPackageImportStamp>
+    <NuGetPackageImportStamp>29206d49</NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -37,9 +34,8 @@
     <Reference Include="Google.Protobuf">
       <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
     </Reference>
-    <Reference Include="Grpc.Core, Version=0.7.1.0, Culture=neutral, PublicKeyToken=d754f35622e28bad, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Grpc.Core.0.7.1\lib\net45\Grpc.Core.dll</HintPath>
+    <Reference Include="Grpc.Core">
+      <HintPath>..\packages\Grpc.Core.0.12.0\lib\net45\Grpc.Core.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Interactive.Async">
@@ -60,18 +56,15 @@
   <ItemGroup>
     <None Include="packages.config" />
   </ItemGroup>
+  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets'))" />
   </Target>
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" />
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" />
+  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" />
+  <Import Project="..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets" Condition="Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" />
 </Project>
\ No newline at end of file
diff --git a/examples/csharp/helloworld/GreeterClient/Program.cs b/examples/csharp/helloworld/GreeterClient/Program.cs
index 2749a92..ffc7fab 100644
--- a/examples/csharp/helloworld/GreeterClient/Program.cs
+++ b/examples/csharp/helloworld/GreeterClient/Program.cs
@@ -1,4 +1,4 @@
-// Copyright 2015, Google Inc.
+// Copyright 2015-2016, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -37,7 +37,7 @@
     {
         public static void Main(string[] args)
         {
-            Channel channel = new Channel("127.0.0.1:50051", Credentials.Insecure);
+            Channel channel = new Channel("127.0.0.1:50051", ChannelCredentials.Insecure);
 
             var client = Greeter.NewClient(channel);
             String user = "you";
diff --git a/examples/csharp/helloworld/GreeterClient/packages.config b/examples/csharp/helloworld/GreeterClient/packages.config
index c0f7387..cabcadc 100644
--- a/examples/csharp/helloworld/GreeterClient/packages.config
+++ b/examples/csharp/helloworld/GreeterClient/packages.config
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />
-  <package id="Grpc" version="0.7.1" targetFramework="net45" />
-  <package id="Grpc.Core" version="0.7.1" targetFramework="net45" />
-  <package id="grpc.dependencies.openssl.redist" version="1.0.2.3" targetFramework="net45" />
-  <package id="grpc.dependencies.zlib.redist" version="1.2.8.9" targetFramework="net45" />
-  <package id="grpc.native.csharp_ext" version="0.11.1" targetFramework="net45" />
+  <package id="Grpc" version="0.12.0" targetFramework="net45" />
+  <package id="Grpc.Core" version="0.12.0" targetFramework="net45" />
+  <package id="grpc.dependencies.openssl.redist" version="1.0.204.1" targetFramework="net45" />
+  <package id="grpc.dependencies.zlib.redist" version="1.2.8.10" targetFramework="net45" />
+  <package id="grpc.native.csharp" version="0.12.0" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.3" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/examples/csharp/helloworld/GreeterServer/GreeterServer.csproj b/examples/csharp/helloworld/GreeterServer/GreeterServer.csproj
index 752f328..56436d3 100644
--- a/examples/csharp/helloworld/GreeterServer/GreeterServer.csproj
+++ b/examples/csharp/helloworld/GreeterServer/GreeterServer.csproj
@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" />
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
@@ -13,7 +10,7 @@
     <RootNamespace>GreeterServer</RootNamespace>
     <AssemblyName>GreeterServer</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
-    <NuGetPackageImportStamp>53a3a588</NuGetPackageImportStamp>
+    <NuGetPackageImportStamp>8a2cae0f</NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -37,9 +34,8 @@
     <Reference Include="Google.Protobuf">
       <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
     </Reference>
-    <Reference Include="Grpc.Core, Version=0.7.1.0, Culture=neutral, PublicKeyToken=d754f35622e28bad, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Grpc.Core.0.7.1\lib\net45\Grpc.Core.dll</HintPath>
+    <Reference Include="Grpc.Core">
+      <HintPath>..\packages\Grpc.Core.0.12.0\lib\net45\Grpc.Core.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Interactive.Async">
@@ -60,18 +56,15 @@
   <ItemGroup>
     <None Include="packages.config" />
   </ItemGroup>
+  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets'))" />
   </Target>
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" />
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" />
+  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" />
+  <Import Project="..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets" Condition="Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" />
 </Project>
\ No newline at end of file
diff --git a/examples/csharp/helloworld/GreeterServer/packages.config b/examples/csharp/helloworld/GreeterServer/packages.config
index c0f7387..cabcadc 100644
--- a/examples/csharp/helloworld/GreeterServer/packages.config
+++ b/examples/csharp/helloworld/GreeterServer/packages.config
@@ -1,10 +1,10 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />
-  <package id="Grpc" version="0.7.1" targetFramework="net45" />
-  <package id="Grpc.Core" version="0.7.1" targetFramework="net45" />
-  <package id="grpc.dependencies.openssl.redist" version="1.0.2.3" targetFramework="net45" />
-  <package id="grpc.dependencies.zlib.redist" version="1.2.8.9" targetFramework="net45" />
-  <package id="grpc.native.csharp_ext" version="0.11.1" targetFramework="net45" />
+  <package id="Grpc" version="0.12.0" targetFramework="net45" />
+  <package id="Grpc.Core" version="0.12.0" targetFramework="net45" />
+  <package id="grpc.dependencies.openssl.redist" version="1.0.204.1" targetFramework="net45" />
+  <package id="grpc.dependencies.zlib.redist" version="1.2.8.10" targetFramework="net45" />
+  <package id="grpc.native.csharp" version="0.12.0" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.3" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/examples/csharp/helloworld/generate_protos.bat b/examples/csharp/helloworld/generate_protos.bat
index 9a5a9d3..8ba2c2e 100644
--- a/examples/csharp/helloworld/generate_protos.bat
+++ b/examples/csharp/helloworld/generate_protos.bat
@@ -5,6 +5,6 @@
 @rem enter this directory
 cd /d %~dp0
 
-packages\Google.Protobuf.3.0.0-alpha4\tools\protoc.exe -I../../protos --csharp_out Greeter  ../../protos/helloworld.proto --grpc_out Greeter --plugin=protoc-gen-grpc=packages\Grpc.Tools.0.7.0\tools\grpc_csharp_plugin.exe
+packages\Google.Protobuf.3.0.0-alpha4\tools\protoc.exe -I../../protos --csharp_out Greeter  ../../protos/helloworld.proto --grpc_out Greeter --plugin=protoc-gen-grpc=packages\Grpc.Tools.0.12.0\tools\grpc_csharp_plugin.exe
 
 endlocal
\ No newline at end of file
diff --git a/examples/csharp/route_guide/.nuget/packages.config b/examples/csharp/route_guide/.nuget/packages.config
index 1c1f118..1cbe7e1 100644
--- a/examples/csharp/route_guide/.nuget/packages.config
+++ b/examples/csharp/route_guide/.nuget/packages.config
@@ -1,4 +1,4 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Grpc.Tools" version="0.7.1" />
+  <package id="Grpc.Tools" version="0.12.0" />
 </packages>
\ No newline at end of file
diff --git a/examples/csharp/route_guide/RouteGuide/RouteGuide.csproj b/examples/csharp/route_guide/RouteGuide/RouteGuide.csproj
index d8f3c8f..3a2a29c 100644
--- a/examples/csharp/route_guide/RouteGuide/RouteGuide.csproj
+++ b/examples/csharp/route_guide/RouteGuide/RouteGuide.csproj
@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" />
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -14,7 +11,7 @@
     <AssemblyName>RouteGuide</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
-    <NuGetPackageImportStamp>256a7eeb</NuGetPackageImportStamp>
+    <NuGetPackageImportStamp>68b3dd23</NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <DebugSymbols>true</DebugSymbols>
@@ -37,9 +34,8 @@
     <Reference Include="Google.Protobuf">
       <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
     </Reference>
-    <Reference Include="Grpc.Core, Version=0.7.1.0, Culture=neutral, PublicKeyToken=d754f35622e28bad, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Grpc.Core.0.7.1\lib\net45\Grpc.Core.dll</HintPath>
+    <Reference Include="Grpc.Core">
+      <HintPath>..\packages\Grpc.Core.0.12.0\lib\net45\Grpc.Core.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
@@ -69,20 +65,17 @@
     </None>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets'))" />
   </Target>
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" />
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" />
+  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" />
+  <Import Project="..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets" Condition="Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">
diff --git a/examples/csharp/route_guide/RouteGuide/packages.config b/examples/csharp/route_guide/RouteGuide/packages.config
index 22d3498..8717315 100644
--- a/examples/csharp/route_guide/RouteGuide/packages.config
+++ b/examples/csharp/route_guide/RouteGuide/packages.config
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />
-  <package id="Grpc" version="0.7.1" targetFramework="net45" />
-  <package id="Grpc.Core" version="0.7.1" targetFramework="net45" />
-  <package id="grpc.dependencies.openssl.redist" version="1.0.2.3" targetFramework="net45" />
-  <package id="grpc.dependencies.zlib.redist" version="1.2.8.9" targetFramework="net45" />
-  <package id="grpc.native.csharp_ext" version="0.11.1" targetFramework="net45" />
+  <package id="Grpc" version="0.12.0" targetFramework="net45" />
+  <package id="Grpc.Core" version="0.12.0" targetFramework="net45" />
+  <package id="grpc.dependencies.openssl.redist" version="1.0.204.1" targetFramework="net45" />
+  <package id="grpc.dependencies.zlib.redist" version="1.2.8.10" targetFramework="net45" />
+  <package id="grpc.native.csharp" version="0.12.0" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.3" targetFramework="net45" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/examples/csharp/route_guide/RouteGuideClient/Program.cs b/examples/csharp/route_guide/RouteGuideClient/Program.cs
index 71e5887..22395dd 100644
--- a/examples/csharp/route_guide/RouteGuideClient/Program.cs
+++ b/examples/csharp/route_guide/RouteGuideClient/Program.cs
@@ -1,4 +1,4 @@
-// Copyright 2015, Google Inc.
+// Copyright 2015-2016, Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
@@ -230,7 +230,7 @@
 
         static void Main(string[] args)
         {
-            var channel = new Channel("127.0.0.1:50052", Credentials.Insecure);
+            var channel = new Channel("127.0.0.1:50052", ChannelCredentials.Insecure);
             var client = new RouteGuideClient(RouteGuide.NewClient(channel));
 
             // Looking for a valid feature
diff --git a/examples/csharp/route_guide/RouteGuideClient/RouteGuideClient.csproj b/examples/csharp/route_guide/RouteGuideClient/RouteGuideClient.csproj
index f08f0ef..89e5025 100644
--- a/examples/csharp/route_guide/RouteGuideClient/RouteGuideClient.csproj
+++ b/examples/csharp/route_guide/RouteGuideClient/RouteGuideClient.csproj
@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" />
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -14,7 +11,7 @@
     <AssemblyName>RouteGuideClient</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
-    <NuGetPackageImportStamp>d40daa42</NuGetPackageImportStamp>
+    <NuGetPackageImportStamp>f5579f73</NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>
@@ -39,9 +36,8 @@
     <Reference Include="Google.Protobuf">
       <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
     </Reference>
-    <Reference Include="Grpc.Core, Version=0.7.1.0, Culture=neutral, PublicKeyToken=d754f35622e28bad, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Grpc.Core.0.7.1\lib\net45\Grpc.Core.dll</HintPath>
+    <Reference Include="Grpc.Core">
+      <HintPath>..\packages\Grpc.Core.0.12.0\lib\net45\Grpc.Core.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
@@ -72,20 +68,17 @@
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets'))" />
   </Target>
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" />
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" />
+  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" />
+  <Import Project="..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets" Condition="Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">
diff --git a/examples/csharp/route_guide/RouteGuideClient/packages.config b/examples/csharp/route_guide/RouteGuideClient/packages.config
index 22d3498..8717315 100644
--- a/examples/csharp/route_guide/RouteGuideClient/packages.config
+++ b/examples/csharp/route_guide/RouteGuideClient/packages.config
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />
-  <package id="Grpc" version="0.7.1" targetFramework="net45" />
-  <package id="Grpc.Core" version="0.7.1" targetFramework="net45" />
-  <package id="grpc.dependencies.openssl.redist" version="1.0.2.3" targetFramework="net45" />
-  <package id="grpc.dependencies.zlib.redist" version="1.2.8.9" targetFramework="net45" />
-  <package id="grpc.native.csharp_ext" version="0.11.1" targetFramework="net45" />
+  <package id="Grpc" version="0.12.0" targetFramework="net45" />
+  <package id="Grpc.Core" version="0.12.0" targetFramework="net45" />
+  <package id="grpc.dependencies.openssl.redist" version="1.0.204.1" targetFramework="net45" />
+  <package id="grpc.dependencies.zlib.redist" version="1.2.8.10" targetFramework="net45" />
+  <package id="grpc.native.csharp" version="0.12.0" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.3" targetFramework="net45" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/examples/csharp/route_guide/RouteGuideServer/RouteGuideServer.csproj b/examples/csharp/route_guide/RouteGuideServer/RouteGuideServer.csproj
index f22b4e5..2e93062 100644
--- a/examples/csharp/route_guide/RouteGuideServer/RouteGuideServer.csproj
+++ b/examples/csharp/route_guide/RouteGuideServer/RouteGuideServer.csproj
@@ -1,8 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" />
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" />
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
     <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
@@ -14,7 +11,7 @@
     <AssemblyName>RouteGuideServer</AssemblyName>
     <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
-    <NuGetPackageImportStamp>e44ce7bb</NuGetPackageImportStamp>
+    <NuGetPackageImportStamp>89e15444</NuGetPackageImportStamp>
   </PropertyGroup>
   <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>
@@ -39,9 +36,8 @@
     <Reference Include="Google.Protobuf">
       <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
     </Reference>
-    <Reference Include="Grpc.Core, Version=0.7.1.0, Culture=neutral, PublicKeyToken=d754f35622e28bad, processorArchitecture=MSIL">
-      <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Grpc.Core.0.7.1\lib\net45\Grpc.Core.dll</HintPath>
+    <Reference Include="Grpc.Core">
+      <HintPath>..\packages\Grpc.Core.0.12.0\lib\net45\Grpc.Core.dll</HintPath>
     </Reference>
     <Reference Include="Newtonsoft.Json, Version=7.0.0.0, Culture=neutral, PublicKeyToken=30ad4fe6b2a6aeed, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
@@ -73,20 +69,17 @@
     </ProjectReference>
   </ItemGroup>
   <Import Project="$(MSBuildToolsPath)\Microsoft.CSharp.targets" />
+  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" />
   <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
     <PropertyGroup>
       <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
     </PropertyGroup>
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.props'))" />
-    <Error Condition="!Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.zlib.redist.1.2.8.10\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.zlib.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets'))" />
+    <Error Condition="!Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" Text="$([System.String]::Format('$(ErrorText)', '..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets'))" />
   </Target>
-  <Import Project="..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets" Condition="Exists('..\packages\grpc.dependencies.zlib.redist.1.2.8.9\build\portable-net45\grpc.dependencies.zlib.redist.targets')" />
-  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.2.3\build\portable-net45\grpc.dependencies.openssl.redist.targets')" />
-  <Import Project="..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets" Condition="Exists('..\packages\grpc.native.csharp_ext.0.11.1\build\portable-net45\grpc.native.csharp_ext.targets')" />
+  <Import Project="..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets" Condition="Exists('..\packages\grpc.dependencies.openssl.redist.1.0.204.1\build\portable-net45+netcore45+wpa81+wp8\grpc.dependencies.openssl.redist.targets')" />
+  <Import Project="..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets" Condition="Exists('..\packages\grpc.native.csharp.0.12.0\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets')" />
   <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
        Other similar extension points exist, see Microsoft.Common.targets.
   <Target Name="BeforeBuild">
diff --git a/examples/csharp/route_guide/RouteGuideServer/packages.config b/examples/csharp/route_guide/RouteGuideServer/packages.config
index 22d3498..8717315 100644
--- a/examples/csharp/route_guide/RouteGuideServer/packages.config
+++ b/examples/csharp/route_guide/RouteGuideServer/packages.config
@@ -1,11 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />
-  <package id="Grpc" version="0.7.1" targetFramework="net45" />
-  <package id="Grpc.Core" version="0.7.1" targetFramework="net45" />
-  <package id="grpc.dependencies.openssl.redist" version="1.0.2.3" targetFramework="net45" />
-  <package id="grpc.dependencies.zlib.redist" version="1.2.8.9" targetFramework="net45" />
-  <package id="grpc.native.csharp_ext" version="0.11.1" targetFramework="net45" />
+  <package id="Grpc" version="0.12.0" targetFramework="net45" />
+  <package id="Grpc.Core" version="0.12.0" targetFramework="net45" />
+  <package id="grpc.dependencies.openssl.redist" version="1.0.204.1" targetFramework="net45" />
+  <package id="grpc.dependencies.zlib.redist" version="1.2.8.10" targetFramework="net45" />
+  <package id="grpc.native.csharp" version="0.12.0" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.3" targetFramework="net45" />
   <package id="Newtonsoft.Json" version="7.0.1" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/examples/csharp/route_guide/generate_protos.bat b/examples/csharp/route_guide/generate_protos.bat
index fb0dc55..fad63ef 100644
--- a/examples/csharp/route_guide/generate_protos.bat
+++ b/examples/csharp/route_guide/generate_protos.bat
@@ -5,6 +5,6 @@
 @rem enter this directory
 cd /d %~dp0
 
-packages\Google.Protobuf.3.0.0-alpha4\tools\protoc.exe -I../../protos --csharp_out RouteGuide  ../../protos/route_guide.proto --grpc_out RouteGuide --plugin=protoc-gen-grpc=packages\Grpc.Tools.0.7.0\tools\grpc_csharp_plugin.exe
+packages\Google.Protobuf.3.0.0-alpha4\tools\protoc.exe -I../../protos --csharp_out RouteGuide  ../../protos/route_guide.proto --grpc_out RouteGuide --plugin=protoc-gen-grpc=packages\Grpc.Tools.0.12.0\tools\grpc_csharp_plugin.exe
 
 endlocal
\ No newline at end of file
diff --git a/examples/objective-c/auth_sample/MakeRPCViewController.m b/examples/objective-c/auth_sample/MakeRPCViewController.m
index 4fd23dc..108eda4 100644
--- a/examples/objective-c/auth_sample/MakeRPCViewController.m
+++ b/examples/objective-c/auth_sample/MakeRPCViewController.m
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -39,7 +39,7 @@
 
 NSString * const kTestScope = @"https://www.googleapis.com/auth/xapi.zoo";
 
-static NSString * const kTestHostAddress = @"grpc-test.sandbox.google.com";
+static NSString * const kTestHostAddress = @"grpc-test.sandbox.googleapis.com";
 
 // Category for RPC errors to create the descriptions as we want them to appear on our view.
 @interface NSError (AuthSample)
diff --git a/gRPC.podspec b/gRPC.podspec
index 97e13c0..18c05e2 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -429,6 +429,7 @@
                       'src/core/census/context.c',
                       'src/core/census/initialize.c',
                       'src/core/census/operation.c',
+                      'src/core/census/tag_set.c',
                       'src/core/census/tracing.c'
 
     ss.private_header_files = 'src/core/profiling/timers.h',
diff --git a/grpc.gemspec b/grpc.gemspec
index 4f3a3f2..47b66ae 100755
--- a/grpc.gemspec
+++ b/grpc.gemspec
@@ -412,5 +412,6 @@
   s.files += %w( src/core/census/context.c )
   s.files += %w( src/core/census/initialize.c )
   s.files += %w( src/core/census/operation.c )
+  s.files += %w( src/core/census/tag_set.c )
   s.files += %w( src/core/census/tracing.c )
 end
diff --git a/include/grpc/census.h b/include/grpc/census.h
index 369827d..f4130c7 100644
--- a/include/grpc/census.h
+++ b/include/grpc/census.h
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -324,61 +324,143 @@
 /** End a scan previously started by census_trace_scan_start() */
 void census_trace_scan_end();
 
-/* Max number of characters in tag key */
-#define CENSUS_MAX_TAG_KEY_LENGTH 20
-/* Max number of tag value characters */
-#define CENSUS_MAX_TAG_VALUE_LENGTH 50
-
 /* A Census tag set is a collection of key:value string pairs; these form the
    basis against which Census metrics will be recorded. Keys are unique within
    a tag set. All contexts have an associated tag set. */
 typedef struct census_tag_set census_tag_set;
 
-/* Returns a pointer to a newly created, empty tag set. If size_hint > 0,
-   indicates that the tag set is intended to hold approximately that number
-   of tags. */
-census_tag_set *census_tag_set_create(size_t size_hint);
+/* A tag is a key:value pair. The key is a non-empty, printable (UTF-8
+   encoded), nil-terminated string. The value is a binary string, that may be
+   printable. There are limits on the sizes of both keys and values (see
+   CENSUS_MAX_TAG_KB_LEN definition below), and the number of tags that can be
+   propagated (CENSUS_MAX_PROPAGATED_TAGS). Users should also remember that
+   some systems may have limits on, e.g., the number of bytes that can be
+   transmitted as metadata, and that larger tags means more memory consumed
+   and time in processing. */
+typedef struct {
+  const char *key;
+  const char *value;
+  size_t value_len;
+  uint8_t flags;
+} census_tag;
 
-/* Add a new tag key/value to an existing tag set; if the tag key already exists
-   in the tag set, then its value is overwritten with the new one. Can also be
-   used to delete a tag, by specifying a NULL value. If key is NULL, returns
-   the number of tags in the tag set.
-   Return values:
-   -1: invalid length key or value
-   non-negative value: the number of tags in the tag set. */
-int census_tag_set_add(census_tag_set *tags, const char *key,
-                       const char *value);
+/* Maximum length of a tag's key or value. */
+#define CENSUS_MAX_TAG_KV_LEN 255
+/* Maximum number of propagatable tags. */
+#define CENSUS_MAX_PROPAGATED_TAGS 255
 
-/* Destroys a tag set. This function must be called to prevent memory leaks.
-   Once called, the tag set cannot be used again. */
+/* Tag flags. */
+#define CENSUS_TAG_PROPAGATE 1 /* Tag should be propagated over RPC */
+#define CENSUS_TAG_STATS 2     /* Tag will be used for statistics aggregation */
+#define CENSUS_TAG_BINARY 4    /* Tag value is not printable */
+#define CENSUS_TAG_RESERVED 8  /* Reserved for internal use. */
+/* Flag values 8,16,32,64,128 are reserved for future/internal use. Clients
+   should not use or rely on their values. */
+
+#define CENSUS_TAG_IS_PROPAGATED(flags) (flags & CENSUS_TAG_PROPAGATE)
+#define CENSUS_TAG_IS_STATS(flags) (flags & CENSUS_TAG_STATS)
+#define CENSUS_TAG_IS_BINARY(flags) (flags & CENSUS_TAG_BINARY)
+
+typedef struct {
+  int n_propagated_tags;        /* number of propagated printable tags */
+  int n_propagated_binary_tags; /* number of propagated binary tags */
+  int n_local_tags;             /* number of non-propagated (local) tags */
+  int n_deleted_tags;           /* number of tags that were deleted */
+  int n_added_tags;             /* number of tags that were added */
+  int n_modified_tags;          /* number of tags that were modified */
+  int n_invalid_tags;           /* number of tags with bad keys or values (e.g.
+                                   longer than CENSUS_MAX_TAG_KV_LEN) */
+  int n_ignored_tags;           /* number of tags ignored because of
+                                   CENSUS_MAX_PROPAGATED_TAGS limit. */
+} census_tag_set_create_status;
+
+/* Create a new tag set, adding and removing tags from an existing tag set.
+   This will copy all tags from it's input parameters, so it is recommended
+   to add as many tags in a single operation as is practical for the client.
+   @param base Base tag set to build upon. Can be NULL.
+   @param tags A set of tags to be added/changed/deleted. Tags with keys that
+   are in 'tags', but not 'base', are added to the tag set. Keys that are in
+   both 'tags' and 'base' will have their value/flags modified. Tags with keys
+   in both, but with NULL or zero-length values, will be deleted from the tag
+   set. Tags with invalid (too long or short) keys or values will be ignored.
+   If adding a tag will result in more than CENSUS_MAX_PROPAGATED_TAGS in either
+   binary or non-binary tags, they will be ignored, as will deletions of
+   tags that don't exist.
+   @param ntags number of tags in 'tags'
+   @param status If not NULL, will return a pointer to a
+   census_tag_set_create_status structure containing information about the new
+   tag set and status of the tags used in its creation.
+   @return A new, valid census_tag_set.
+*/
+census_tag_set *census_tag_set_create(
+    const census_tag_set *base, const census_tag *tags, int ntags,
+    census_tag_set_create_status const **status);
+
+/* Destroy a tag set created by census_tag_set_create(). Once this function
+   has been called, the tag set cannot be reused. */
 void census_tag_set_destroy(census_tag_set *tags);
 
+/* Get a pointer to the original status from the creation of this tag set. */
+const census_tag_set_create_status *census_tag_set_get_create_status(
+    const census_tag_set *tags);
+
+/* Structure used for tag set iteration. API clients should not use or
+   reference internal fields - neither their contents or presence/absence are
+   guaranteed. */
+typedef struct {
+  const census_tag_set *tags;
+  int base;
+  int index;
+  char *kvm;
+} census_tag_set_iterator;
+
+/* Initialize a tag set iterator. Must be called before first use of the
+   iterator. */
+void census_tag_set_initialize_iterator(const census_tag_set *tags,
+                                        census_tag_set_iterator *iterator);
+
+/* Get the contents of the "next" tag in the tag set. If there are no more
+   tags in the tag set, returns 0 (and 'tag' contents will be unchanged),
+   otherwise returns 1. */
+int census_tag_set_next_tag(census_tag_set_iterator *iterator, census_tag *tag);
+
+/* Get a tag by its key. Returns 0 if the key is not present in the tag
+   set. */
+int census_tag_set_get_tag_by_key(const census_tag_set *tags, const char *key,
+                                  census_tag *tag);
+
+/* Tag set encode/decode functionality. These functionas are intended
+   for use by RPC systems only, for purposes of transmitting/receiving tag
+   sets. */
+
+/* Encode a tag set into a buffer. The propagated tags are encoded into the
+   buffer in two regions: one for printable tags, and one for binary tags.
+   @param tags tag set to be encoded
+   @param buffer pointer to buffer. This address will be used to encode the
+                 printable tags.
+   @param buf_size number of available bytes in buffer.
+   @param print_buf_size Will be set to the number of bytes consumed by
+                         printable tags.
+   @param bin_buf_size Will be set to the number of bytes used to encode the
+                       binary tags.
+   @return A pointer to the binary tag's encoded, or NULL if the buffer was
+           insufficiently large to hold the encoded tags. Thus, if successful,
+           printable tags are encoded into
+           [buffer, buffer + *print_buf_size) and binary tags into
+           [returned-ptr, returned-ptr + *bin_buf_size) (and the return value
+           should be buffer + *print_buf_size) */
+char *census_tag_set_encode(const census_tag_set *tags, char *buffer,
+                            size_t buf_size, size_t *print_buf_size,
+                            size_t *bin_buf_size);
+
+/* Decode tag set buffers encoded with census_tag_set_encode_*(). Returns NULL
+   if there is an error in parsing either buffer. */
+census_tag_set *census_tag_set_decode(const char *buffer, size_t size,
+                                      const char *bin_buffer, size_t bin_size);
+
 /* Get a contexts tag set. */
 census_tag_set *census_context_tag_set(census_context *context);
 
-/* A read-only representation of a tag for use by census clients. */
-typedef struct {
-  size_t key_len;    /* Number of bytes in tag key. */
-  const char *key;   /* A pointer to the tag key. May not be null-terminated. */
-  size_t value_len;  /* Number of bytes in tag value. */
-  const char *value; /* Pointer to the tag value. May not be null-terminated. */
-} census_tag_const;
-
-/* Used to iterate through a tag sets contents. */
-typedef struct census_tag_set_iterator census_tag_set_iterator;
-
-/* Open a tag set for iteration. The tag set must not be modified while
-   iteration is ongoing. Returns an iterator for use in following functions. */
-census_tag_set_iterator *census_tag_set_open(census_tag_set *tags);
-
-/* Get the next tag in the tag set, by writing into the 'tag' argument. Returns
-   1 if there is a "next" tag, 0 if there are no more tags. */
-int census_tag_set_next(census_tag_set_iterator *it, census_tag_const *tag);
-
-/* Close an iterator opened by census_tag_set_open(). The iterator will be
-   invalidated, and should not be used once close is called. */
-void census_tag_set_close(census_tag_set_iterator *it);
-
 /* Core stats collection API's. The following concepts are used:
    * Aggregation: A collection of values. Census supports the following
        aggregation types:
diff --git a/package.json b/package.json
index e0bbb7d..0b87f6a 100644
--- a/package.json
+++ b/package.json
@@ -363,6 +363,7 @@
     "src/core/census/context.c",
     "src/core/census/initialize.c",
     "src/core/census/operation.c",
+    "src/core/census/tag_set.c",
     "src/core/census/tracing.c",
     "include/grpc/support/alloc.h",
     "include/grpc/support/atm.h",
diff --git a/setup.py b/setup.py
index 4012397..c54ac22 100644
--- a/setup.py
+++ b/setup.py
@@ -45,6 +45,7 @@
 PYTHON_STEM = './src/python/grpcio'
 CORE_INCLUDE = ('./include', '.',)
 BORINGSSL_INCLUDE = ('./third_party/boringssl/include',)
+ZLIB_INCLUDE = ('./third_party/zlib',)
 
 # Ensure we're in the proper directory whether or not we're being used by pip.
 os.chdir(os.path.dirname(os.path.abspath(__file__)))
@@ -75,9 +76,9 @@
 CYTHON_EXTENSION_MODULE_NAMES = ('grpc._cython.cygrpc',)
 
 EXTENSION_INCLUDE_DIRECTORIES = (
-    (PYTHON_STEM,) + CORE_INCLUDE + BORINGSSL_INCLUDE)
+    (PYTHON_STEM,) + CORE_INCLUDE + BORINGSSL_INCLUDE + ZLIB_INCLUDE)
 
-EXTENSION_LIBRARIES = ()
+EXTENSION_LIBRARIES = ('m',)
 if not "darwin" in sys.platform:
     EXTENSION_LIBRARIES += ('rt',)
 
@@ -120,6 +121,9 @@
 INSTALL_REQUIRES = (
     'enum34>=1.0.4',
     'futures>=2.2.0',
+    # TODO(atash): eventually split the grpcio package into a metapackage
+    # depending on protobuf and the runtime component (independent of protobuf)
+    'protobuf>=3.0.0a3',
 )
 
 SETUP_REQUIRES = (
diff --git a/src/compiler/csharp_generator.cc b/src/compiler/csharp_generator.cc
index 7b497df..f6079bd 100644
--- a/src/compiler/csharp_generator.cc
+++ b/src/compiler/csharp_generator.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -44,7 +44,7 @@
 
 using google::protobuf::compiler::csharp::GetFileNamespace;
 using google::protobuf::compiler::csharp::GetClassName;
-using google::protobuf::compiler::csharp::GetUmbrellaClassName;
+using google::protobuf::compiler::csharp::GetReflectionClassName;
 using grpc::protobuf::FileDescriptor;
 using grpc::protobuf::Descriptor;
 using grpc::protobuf::ServiceDescriptor;
@@ -234,7 +234,7 @@
   out->Print("public static global::Google.Protobuf.Reflection.ServiceDescriptor Descriptor\n");
   out->Print("{\n");
   out->Print("  get { return $umbrella$.Descriptor.Services[$index$]; }\n",
-             "umbrella", GetUmbrellaClassName(service->file()), "index",
+             "umbrella", GetReflectionClassName(service->file()), "index",
              index.str());
   out->Print("}\n");
   out->Print("\n");
diff --git a/src/core/census/tag_set.c b/src/core/census/tag_set.c
new file mode 100644
index 0000000..9b65a1d
--- /dev/null
+++ b/src/core/census/tag_set.c
@@ -0,0 +1,535 @@
+/*
+ *
+ * Copyright 2015-2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <grpc/census.h>
+#include <grpc/support/alloc.h>
+#include <grpc/support/log.h>
+#include <grpc/support/port_platform.h>
+#include <grpc/support/useful.h>
+#include <stdbool.h>
+#include <string.h>
+#include "src/core/support/string.h"
+
+// Functions in this file support the public tag_set API, as well as
+// encoding/decoding tag_sets as part of context propagation across
+// RPC's. The overall requirements (in approximate priority order) for the
+// tag_set representations:
+// 1. Efficient conversion to/from wire format
+// 2. Minimal bytes used on-wire
+// 3. Efficient tag set creation
+// 4. Efficient lookup of value for a key
+// 5. Efficient lookup of value for an index (to support iteration)
+// 6. Minimal memory footprint
+//
+// Notes on tradeoffs/decisions:
+// * tag includes 1 byte length of key, as well as nil-terminating byte. These
+//   are to aid in efficient parsing and the ability to directly return key
+//   strings. This is more important than saving a single byte/tag on the wire.
+// * The wire encoding uses only single byte values. This eliminates the need
+//   to handle endian-ness conversions. It also means there is a hard upper
+//   limit of 255 for both CENSUS_MAX_TAG_KV_LEN and CENSUS_MAX_PROPAGATED_TAGS.
+// * Keep all tag information (keys/values/flags) in a single memory buffer,
+//   that can be directly copied to the wire.14
+// * Binary tags share the same structure as, but are encoded separately from,
+//   non-binary tags. This is primarily because non-binary tags are far more
+//   likely to be repeated across multiple RPC calls, so are more efficiently
+//   cached and compressed in any metadata schemes.
+// * all lengths etc. are restricted to one byte. This eliminates endian
+//   issues.
+
+// Structure representing a set of tags. Essentially a count of number of tags
+// present, and pointer to a chunk of memory that contains the per-tag details.
+struct tag_set {
+  int ntags;        // number of tags.
+  int ntags_alloc;  // ntags + number of deleted tags (total number of tags
+  // in all of kvm). This will always be == ntags, except during the process
+  // of building a new tag set.
+  size_t kvm_size;  // number of bytes allocated for key/value storage.
+  size_t kvm_used;  // number of bytes of used key/value memory
+  char *kvm;        // key/value memory. Consists of repeated entries of:
+  //   Offset  Size  Description
+  //     0      1    Key length, including trailing 0. (K)
+  //     1      1    Value length. (V)
+  //     2      1    Flags
+  //     3      K    Key bytes
+  //     3 + K  V    Value bytes
+  //
+  // We refer to the first 3 entries as the 'tag header'. If extra values are
+  // introduced in the header, you will need to modify the TAG_HEADER_SIZE
+  // constant, the raw_tag structure (and everything that uses it) and the
+  // encode/decode functions appropriately.
+};
+
+// Number of bytes in tag header.
+#define TAG_HEADER_SIZE 3  // key length (1) + value length (1) + flags (1)
+// Offsets to tag header entries.
+#define KEY_LEN_OFFSET 0
+#define VALUE_LEN_OFFSET 1
+#define FLAG_OFFSET 2
+
+// raw_tag represents the raw-storage form of a tag in the kvm of a tag_set.
+struct raw_tag {
+  uint8_t key_len;
+  uint8_t value_len;
+  uint8_t flags;
+  char *key;
+  char *value;
+};
+
+// Use a reserved flag bit for indication of deleted tag.
+#define CENSUS_TAG_DELETED CENSUS_TAG_RESERVED
+#define CENSUS_TAG_IS_DELETED(flags) (flags & CENSUS_TAG_DELETED)
+
+// Primary (external) representation of a tag set. Composed of 3 underlying
+// tag_set structs, one for each of the binary/printable propagated tags, and
+// one for everything else. This is to efficiently support tag
+// encoding/decoding.
+struct census_tag_set {
+  struct tag_set tags[3];
+  census_tag_set_create_status status;
+};
+
+// Indices into the tags member of census_tag_set
+#define PROPAGATED_TAGS 0
+#define PROPAGATED_BINARY_TAGS 1
+#define LOCAL_TAGS 2
+
+// Extract a raw tag given a pointer (raw) to the tag header. Allow for some
+// extra bytes in the tag header (see encode/decode functions for usage: this
+// allows for future expansion of the tag header).
+static char *decode_tag(struct raw_tag *tag, char *header, int offset) {
+  tag->key_len = (uint8_t)(*header++);
+  tag->value_len = (uint8_t)(*header++);
+  tag->flags = (uint8_t)(*header++);
+  header += offset;
+  tag->key = header;
+  header += tag->key_len;
+  tag->value = header;
+  return header + tag->value_len;
+}
+
+// Make a copy (in 'to') of an existing tag_set.
+static void tag_set_copy(struct tag_set *to, const struct tag_set *from) {
+  memcpy(to, from, sizeof(struct tag_set));
+  to->kvm = gpr_malloc(to->kvm_size);
+  memcpy(to->kvm, from->kvm, from->kvm_used);
+}
+
+// Delete a tag from a tag_set, if it exists (returns true if it did).
+static bool tag_set_delete_tag(struct tag_set *tags, const char *key,
+                               size_t key_len) {
+  char *kvp = tags->kvm;
+  for (int i = 0; i < tags->ntags_alloc; i++) {
+    uint8_t *flags = (uint8_t *)(kvp + FLAG_OFFSET);
+    struct raw_tag tag;
+    kvp = decode_tag(&tag, kvp, 0);
+    if (CENSUS_TAG_IS_DELETED(tag.flags)) continue;
+    if ((key_len == tag.key_len) && (memcmp(key, tag.key, key_len) == 0)) {
+      *flags |= CENSUS_TAG_DELETED;
+      tags->ntags--;
+      return true;
+    }
+  }
+  return false;
+}
+
+// Delete a tag from a census_tag_set, return true if it existed.
+static bool cts_delete_tag(census_tag_set *tags, const census_tag *tag,
+                           size_t key_len) {
+  return (tag_set_delete_tag(&tags->tags[LOCAL_TAGS], tag->key, key_len) ||
+          tag_set_delete_tag(&tags->tags[PROPAGATED_TAGS], tag->key, key_len) ||
+          tag_set_delete_tag(&tags->tags[PROPAGATED_BINARY_TAGS], tag->key,
+                             key_len));
+}
+
+// Add a tag to a tag_set. Return true on sucess, false if the tag could
+// not be added because of constraints on tag set size. This function should
+// not be called if the tag may already exist (in a non-deleted state) in
+// the tag_set, as that would result in two tags with the same key.
+static bool tag_set_add_tag(struct tag_set *tags, const census_tag *tag,
+                            size_t key_len) {
+  if (tags->ntags == CENSUS_MAX_PROPAGATED_TAGS) {
+    return false;
+  }
+  const size_t tag_size = key_len + tag->value_len + TAG_HEADER_SIZE;
+  if (tags->kvm_used + tag_size > tags->kvm_size) {
+    // allocate new memory if needed
+    tags->kvm_size += 2 * CENSUS_MAX_TAG_KV_LEN + TAG_HEADER_SIZE;
+    char *new_kvm = gpr_malloc(tags->kvm_size);
+    memcpy(new_kvm, tags->kvm, tags->kvm_used);
+    gpr_free(tags->kvm);
+    tags->kvm = new_kvm;
+  }
+  char *kvp = tags->kvm + tags->kvm_used;
+  *kvp++ = (char)key_len;
+  *kvp++ = (char)tag->value_len;
+  // ensure reserved flags are not used.
+  *kvp++ = (char)(tag->flags & (CENSUS_TAG_PROPAGATE | CENSUS_TAG_STATS |
+                                CENSUS_TAG_BINARY));
+  memcpy(kvp, tag->key, key_len);
+  kvp += key_len;
+  memcpy(kvp, tag->value, tag->value_len);
+  tags->kvm_used += tag_size;
+  tags->ntags++;
+  tags->ntags_alloc++;
+  return true;
+}
+
+// Add/modify/delete a tag to/in a census_tag_set. Caller must validate that
+// tag key etc. are valid.
+static void cts_modify_tag(census_tag_set *tags, const census_tag *tag,
+                           size_t key_len) {
+  // First delete the tag if it is already present.
+  bool deleted = cts_delete_tag(tags, tag, key_len);
+  // Determine if we need to add it back.
+  bool call_add = tag->value != NULL && tag->value_len != 0;
+  bool added = false;
+  if (call_add) {
+    if (CENSUS_TAG_IS_PROPAGATED(tag->flags)) {
+      if (CENSUS_TAG_IS_BINARY(tag->flags)) {
+        added =
+            tag_set_add_tag(&tags->tags[PROPAGATED_BINARY_TAGS], tag, key_len);
+      } else {
+        added = tag_set_add_tag(&tags->tags[PROPAGATED_TAGS], tag, key_len);
+      }
+    } else {
+      added = tag_set_add_tag(&tags->tags[LOCAL_TAGS], tag, key_len);
+    }
+  }
+  if (deleted) {
+    if (call_add) {
+      tags->status.n_modified_tags++;
+    } else {
+      tags->status.n_deleted_tags++;
+    }
+  } else {
+    if (added) {
+      tags->status.n_added_tags++;
+    } else {
+      tags->status.n_ignored_tags++;
+    }
+  }
+}
+
+// Remove memory used for deleted tags from the tag set. Basic algorithm:
+// 1) Walk through tag set to find first deleted tag. Record where it is.
+// 2) Find the next not-deleted tag. Copy all of kvm from there to the end
+//    "over" the deleted tags
+// 3) repeat #1 and #2 until we have seen all tags
+// 4) if we are still looking for a not-deleted tag, then all the end portion
+//    of the kvm is deleted. Just reduce the used amount of memory by the
+//    appropriate amount.
+static void tag_set_flatten(struct tag_set *tags) {
+  if (tags->ntags == tags->ntags_alloc) return;
+  bool found_deleted = false;  // found a deleted tag.
+  char *kvp = tags->kvm;
+  char *dbase = NULL;  // record location of deleted tag
+  for (int i = 0; i < tags->ntags_alloc; i++) {
+    struct raw_tag tag;
+    char *next_kvp = decode_tag(&tag, kvp, 0);
+    if (found_deleted) {
+      if (!CENSUS_TAG_IS_DELETED(tag.flags)) {
+        ptrdiff_t reduce = kvp - dbase;  // #bytes in deleted tags
+        GPR_ASSERT(reduce > 0);
+        ptrdiff_t copy_size = tags->kvm + tags->kvm_used - kvp;
+        GPR_ASSERT(copy_size > 0);
+        memmove(dbase, kvp, (size_t)copy_size);
+        tags->kvm_used -= (size_t)reduce;
+        next_kvp -= reduce;
+        found_deleted = false;
+      }
+    } else {
+      if (CENSUS_TAG_IS_DELETED(tag.flags)) {
+        dbase = kvp;
+        found_deleted = true;
+      }
+    }
+    kvp = next_kvp;
+  }
+  if (found_deleted) {
+    GPR_ASSERT(dbase > tags->kvm);
+    tags->kvm_used = (size_t)(dbase - tags->kvm);
+  }
+  tags->ntags_alloc = tags->ntags;
+}
+
+census_tag_set *census_tag_set_create(
+    const census_tag_set *base, const census_tag *tags, int ntags,
+    census_tag_set_create_status const **status) {
+  census_tag_set *new_ts = gpr_malloc(sizeof(census_tag_set));
+  // If we are given a base, copy it into our new tag set. Otherwise set it
+  // to zero/NULL everything.
+  if (base == NULL) {
+    memset(new_ts, 0, sizeof(census_tag_set));
+  } else {
+    tag_set_copy(&new_ts->tags[PROPAGATED_TAGS], &base->tags[PROPAGATED_TAGS]);
+    tag_set_copy(&new_ts->tags[PROPAGATED_BINARY_TAGS],
+                 &base->tags[PROPAGATED_BINARY_TAGS]);
+    tag_set_copy(&new_ts->tags[LOCAL_TAGS], &base->tags[LOCAL_TAGS]);
+    memset(&new_ts->status, 0, sizeof(new_ts->status));
+  }
+  // Walk over the additional tags and, for those that aren't invalid, modify
+  // the tag set to add/replace/delete as required.
+  for (int i = 0; i < ntags; i++) {
+    const census_tag *tag = &tags[i];
+    size_t key_len = strlen(tag->key) + 1;
+    // ignore the tag if it is too long/short.
+    if (key_len != 1 && key_len <= CENSUS_MAX_TAG_KV_LEN &&
+        tag->value_len <= CENSUS_MAX_TAG_KV_LEN) {
+      cts_modify_tag(new_ts, tag, key_len);
+    } else {
+      new_ts->status.n_invalid_tags++;
+    }
+  }
+  // Remove any deleted tags, update status if needed, and return.
+  tag_set_flatten(&new_ts->tags[PROPAGATED_TAGS]);
+  tag_set_flatten(&new_ts->tags[PROPAGATED_BINARY_TAGS]);
+  tag_set_flatten(&new_ts->tags[LOCAL_TAGS]);
+  new_ts->status.n_propagated_tags = new_ts->tags[PROPAGATED_TAGS].ntags;
+  new_ts->status.n_propagated_binary_tags =
+      new_ts->tags[PROPAGATED_BINARY_TAGS].ntags;
+  new_ts->status.n_local_tags = new_ts->tags[LOCAL_TAGS].ntags;
+  if (status) {
+    *status = &new_ts->status;
+  }
+  return new_ts;
+}
+
+const census_tag_set_create_status *census_tag_set_get_create_status(
+    const census_tag_set *tags) {
+  return &tags->status;
+}
+
+void census_tag_set_destroy(census_tag_set *tags) {
+  gpr_free(tags->tags[PROPAGATED_TAGS].kvm);
+  gpr_free(tags->tags[PROPAGATED_BINARY_TAGS].kvm);
+  gpr_free(tags->tags[LOCAL_TAGS].kvm);
+  gpr_free(tags);
+}
+
+// Initialize a tag set iterator. Must be called before first use of the
+// iterator.
+void census_tag_set_initialize_iterator(const census_tag_set *tags,
+                                        census_tag_set_iterator *iterator) {
+  iterator->tags = tags;
+  iterator->index = 0;
+  if (tags->tags[PROPAGATED_TAGS].ntags != 0) {
+    iterator->base = PROPAGATED_TAGS;
+    iterator->kvm = tags->tags[PROPAGATED_TAGS].kvm;
+  } else if (tags->tags[PROPAGATED_BINARY_TAGS].ntags != 0) {
+    iterator->base = PROPAGATED_BINARY_TAGS;
+    iterator->kvm = tags->tags[PROPAGATED_BINARY_TAGS].kvm;
+  } else if (tags->tags[LOCAL_TAGS].ntags != 0) {
+    iterator->base = LOCAL_TAGS;
+    iterator->kvm = tags->tags[LOCAL_TAGS].kvm;
+  } else {
+    iterator->base = -1;
+  }
+}
+
+// Get the contents of the "next" tag in the tag set. If there are no more
+// tags in the tag set, returns 0 (and 'tag' contents will be unchanged),
+// otherwise returns 1. */
+int census_tag_set_next_tag(census_tag_set_iterator *iterator,
+                            census_tag *tag) {
+  if (iterator->base < 0) {
+    return 0;
+  }
+  struct raw_tag raw;
+  iterator->kvm = decode_tag(&raw, iterator->kvm, 0);
+  tag->key = raw.key;
+  tag->value = raw.value;
+  tag->value_len = raw.value_len;
+  tag->flags = raw.flags;
+  if (++iterator->index == iterator->tags->tags[iterator->base].ntags) {
+    do {
+      if (iterator->base == LOCAL_TAGS) {
+        iterator->base = -1;
+        return 1;
+      }
+    } while (iterator->tags->tags[++iterator->base].ntags == 0);
+    iterator->index = 0;
+    iterator->kvm = iterator->tags->tags[iterator->base].kvm;
+  }
+  return 1;
+}
+
+// Find a tag in a tag_set by key. Return true if found, false otherwise.
+static bool tag_set_get_tag_by_key(const struct tag_set *tags, const char *key,
+                                   size_t key_len, census_tag *tag) {
+  char *kvp = tags->kvm;
+  for (int i = 0; i < tags->ntags; i++) {
+    struct raw_tag raw;
+    kvp = decode_tag(&raw, kvp, 0);
+    if (key_len == raw.key_len && memcmp(raw.key, key, key_len) == 0) {
+      tag->key = raw.key;
+      tag->value = raw.value;
+      tag->value_len = raw.value_len;
+      tag->flags = raw.flags;
+      return true;
+    }
+  }
+  return false;
+}
+
+int census_tag_set_get_tag_by_key(const census_tag_set *tags, const char *key,
+                                  census_tag *tag) {
+  size_t key_len = strlen(key) + 1;
+  if (key_len == 1) {
+    return 0;
+  }
+  if (tag_set_get_tag_by_key(&tags->tags[PROPAGATED_TAGS], key, key_len, tag) ||
+      tag_set_get_tag_by_key(&tags->tags[PROPAGATED_BINARY_TAGS], key, key_len,
+                             tag) ||
+      tag_set_get_tag_by_key(&tags->tags[LOCAL_TAGS], key, key_len, tag)) {
+    return 1;
+  }
+  return 0;
+}
+
+// tag_set encoding and decoding functions.
+//
+// Wire format for tag sets on the wire:
+//
+// First, a tag set header:
+//
+// offset   bytes  description
+//   0        1    version number
+//   1        1    number of bytes in this header. This allows for future
+//                 expansion.
+//   2        1    number of bytes in each tag header.
+//   3        1    ntags value from tag set.
+//
+//   This is followed by the key/value memory from struct tag_set.
+
+#define ENCODED_VERSION 0      // Version number
+#define ENCODED_HEADER_SIZE 4  // size of tag set header
+
+// Encode a tag set. Returns 0 if buffer is too small.
+static size_t tag_set_encode(const struct tag_set *tags, char *buffer,
+                             size_t buf_size) {
+  if (buf_size < ENCODED_HEADER_SIZE + tags->kvm_used) {
+    return 0;
+  }
+  buf_size -= ENCODED_HEADER_SIZE;
+  *buffer++ = (char)ENCODED_VERSION;
+  *buffer++ = (char)ENCODED_HEADER_SIZE;
+  *buffer++ = (char)TAG_HEADER_SIZE;
+  *buffer++ = (char)tags->ntags;
+  if (tags->ntags == 0) {
+    return ENCODED_HEADER_SIZE;
+  }
+  memcpy(buffer, tags->kvm, tags->kvm_used);
+  return ENCODED_HEADER_SIZE + tags->kvm_used;
+}
+
+char *census_tag_set_encode(const census_tag_set *tags, char *buffer,
+                            size_t buf_size, size_t *print_buf_size,
+                            size_t *bin_buf_size) {
+  *print_buf_size =
+      tag_set_encode(&tags->tags[PROPAGATED_TAGS], buffer, buf_size);
+  if (*print_buf_size == 0) {
+    return NULL;
+  }
+  char *b_buffer = buffer + *print_buf_size;
+  *bin_buf_size = tag_set_encode(&tags->tags[PROPAGATED_BINARY_TAGS], b_buffer,
+                                 buf_size - *print_buf_size);
+  if (*bin_buf_size == 0) {
+    return NULL;
+  }
+  return b_buffer;
+}
+
+// Decode a tag set.
+static void tag_set_decode(struct tag_set *tags, const char *buffer,
+                           size_t size) {
+  uint8_t version = (uint8_t)(*buffer++);
+  uint8_t header_size = (uint8_t)(*buffer++);
+  uint8_t tag_header_size = (uint8_t)(*buffer++);
+  tags->ntags = tags->ntags_alloc = (int)(*buffer++);
+  if (tags->ntags == 0) {
+    tags->ntags_alloc = 0;
+    tags->kvm_size = 0;
+    tags->kvm_used = 0;
+    tags->kvm = NULL;
+    return;
+  }
+  if (header_size != ENCODED_HEADER_SIZE) {
+    GPR_ASSERT(version != ENCODED_VERSION);
+    GPR_ASSERT(ENCODED_HEADER_SIZE < header_size);
+    buffer += (header_size - ENCODED_HEADER_SIZE);
+  }
+  tags->kvm_used = size - header_size;
+  tags->kvm_size = tags->kvm_used + CENSUS_MAX_TAG_KV_LEN;
+  tags->kvm = gpr_malloc(tags->kvm_size);
+  if (tag_header_size != TAG_HEADER_SIZE) {
+    // something new in the tag information. I don't understand it, so
+    // don't copy it over.
+    GPR_ASSERT(version != ENCODED_VERSION);
+    GPR_ASSERT(tag_header_size > TAG_HEADER_SIZE);
+    char *kvp = tags->kvm;
+    for (int i = 0; i < tags->ntags; i++) {
+      memcpy(kvp, buffer, TAG_HEADER_SIZE);
+      kvp += header_size;
+      struct raw_tag raw;
+      buffer =
+          decode_tag(&raw, (char *)buffer, tag_header_size - TAG_HEADER_SIZE);
+      memcpy(kvp, raw.key, (size_t)raw.key_len + raw.value_len);
+      kvp += raw.key_len + raw.value_len;
+    }
+  } else {
+    memcpy(tags->kvm, buffer, tags->kvm_used);
+  }
+}
+
+census_tag_set *census_tag_set_decode(const char *buffer, size_t size,
+                                      const char *bin_buffer, size_t bin_size) {
+  census_tag_set *new_ts = gpr_malloc(sizeof(census_tag_set));
+  memset(&new_ts->tags[LOCAL_TAGS], 0, sizeof(struct tag_set));
+  if (buffer == NULL) {
+    memset(&new_ts->tags[PROPAGATED_TAGS], 0, sizeof(struct tag_set));
+  } else {
+    tag_set_decode(&new_ts->tags[PROPAGATED_TAGS], buffer, size);
+  }
+  if (bin_buffer == NULL) {
+    memset(&new_ts->tags[PROPAGATED_BINARY_TAGS], 0, sizeof(struct tag_set));
+  } else {
+    tag_set_decode(&new_ts->tags[PROPAGATED_BINARY_TAGS], bin_buffer, bin_size);
+  }
+  memset(&new_ts->status, 0, sizeof(new_ts->status));
+  new_ts->status.n_propagated_tags = new_ts->tags[PROPAGATED_TAGS].ntags;
+  new_ts->status.n_propagated_binary_tags =
+      new_ts->tags[PROPAGATED_BINARY_TAGS].ntags;
+  // TODO(aveitch): check that BINARY flag is correct for each type.
+  return new_ts;
+}
diff --git a/src/core/support/cpu_posix.c b/src/core/support/cpu_posix.c
index 5edb87d..8f01c28 100644
--- a/src/core/support/cpu_posix.c
+++ b/src/core/support/cpu_posix.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -48,7 +48,7 @@
 
 static void init_ncpus() {
   ncpus = sysconf(_SC_NPROCESSORS_ONLN);
-  if (ncpus < 1 || ncpus > UINT32_MAX) {
+  if (ncpus < 1 || ncpus > INT32_MAX) {
     gpr_log(GPR_ERROR, "Cannot determine number of CPUs: assuming 1");
     ncpus = 1;
   }
diff --git a/src/core/transport/chttp2/timeout_encoding.c b/src/core/transport/chttp2/timeout_encoding.c
index 8cbf987..a6f7081 100644
--- a/src/core/transport/chttp2/timeout_encoding.c
+++ b/src/core/transport/chttp2/timeout_encoding.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -137,7 +137,7 @@
 }
 
 int grpc_chttp2_decode_timeout(const char *buffer, gpr_timespec *timeout) {
-  uint32_t x = 0;
+  int32_t x = 0;
   const uint8_t *p = (const uint8_t *)buffer;
   int have_digit = 0;
   /* skip whitespace */
@@ -145,13 +145,16 @@
     ;
   /* decode numeric part */
   for (; *p >= '0' && *p <= '9'; p++) {
-    uint32_t xp = x * 10u + (uint32_t)*p - (uint32_t)'0';
+    int32_t digit = (int32_t)(*p - (uint8_t)'0');
     have_digit = 1;
-    if (xp < x) {
-      *timeout = gpr_inf_future(GPR_CLOCK_REALTIME);
-      return 1;
+    /* spec allows max. 8 digits, but we allow values up to 1,000,000,000 */
+    if (x >= (100 * 1000 * 1000)) {
+      if (x != (100 * 1000 * 1000) || digit != 0) {
+        *timeout = gpr_inf_future(GPR_CLOCK_REALTIME);
+        return 1;
+      }
     }
-    x = xp;
+    x = x * 10 + digit;
   }
   if (!have_digit) return 0;
   /* skip whitespace */
diff --git a/src/cpp/server/server_context.cc b/src/cpp/server/server_context.cc
index 8193e70..b3a74c7 100644
--- a/src/cpp/server/server_context.cc
+++ b/src/cpp/server/server_context.cc
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -122,6 +122,7 @@
     : completion_op_(nullptr),
       has_notify_when_done_tag_(false),
       async_notify_when_done_tag_(nullptr),
+      deadline_(gpr_inf_future(GPR_CLOCK_REALTIME)),
       call_(nullptr),
       cq_(nullptr),
       sent_initial_metadata_(false) {}
diff --git a/src/csharp/Grpc.Auth/Grpc.Auth.csproj b/src/csharp/Grpc.Auth/Grpc.Auth.csproj
index 55bde6e..7e10654 100644
--- a/src/csharp/Grpc.Auth/Grpc.Auth.csproj
+++ b/src/csharp/Grpc.Auth/Grpc.Auth.csproj
@@ -36,7 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
diff --git a/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj b/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj
index 475c792..8307828 100644
--- a/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj
+++ b/src/csharp/Grpc.Core.Tests/Grpc.Core.Tests.csproj
@@ -32,7 +32,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="nunit.core">
diff --git a/src/csharp/Grpc.Core/Grpc.Core.csproj b/src/csharp/Grpc.Core/Grpc.Core.csproj
index ef4ec70..38398a2 100644
--- a/src/csharp/Grpc.Core/Grpc.Core.csproj
+++ b/src/csharp/Grpc.Core/Grpc.Core.csproj
@@ -35,7 +35,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
diff --git a/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.csproj b/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.csproj
index b603e3a..35c0646 100644
--- a/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.csproj
+++ b/src/csharp/Grpc.Examples.MathClient/Grpc.Examples.MathClient.csproj
@@ -34,7 +34,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
diff --git a/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.csproj b/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.csproj
index 5f74b58..74d79b4 100644
--- a/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.csproj
+++ b/src/csharp/Grpc.Examples.MathServer/Grpc.Examples.MathServer.csproj
@@ -34,7 +34,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
diff --git a/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj b/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj
index c4c1ee6..54c68c1 100644
--- a/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj
+++ b/src/csharp/Grpc.Examples.Tests/Grpc.Examples.Tests.csproj
@@ -34,12 +34,12 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Google.Protobuf, Version=3.0.0.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
+      <HintPath>..\packages\Google.Protobuf.3.0.0-beta2\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
     </Reference>
     <Reference Include="nunit.framework">
       <HintPath>..\packages\NUnit.2.6.4\lib\nunit.framework.dll</HintPath>
diff --git a/src/csharp/Grpc.Examples.Tests/packages.config b/src/csharp/Grpc.Examples.Tests/packages.config
index 7266fa1..10bf1e8 100644
--- a/src/csharp/Grpc.Examples.Tests/packages.config
+++ b/src/csharp/Grpc.Examples.Tests/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>

 <packages>

-  <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />

+  <package id="Google.Protobuf" version="3.0.0-beta2" targetFramework="net45" />

   <package id="Ix-Async" version="1.2.3" targetFramework="net45" />

   <package id="NUnit" version="2.6.4" targetFramework="net45" />

 </packages>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples/Grpc.Examples.csproj b/src/csharp/Grpc.Examples/Grpc.Examples.csproj
index 53b2bb7..c9b0195 100644
--- a/src/csharp/Grpc.Examples/Grpc.Examples.csproj
+++ b/src/csharp/Grpc.Examples/Grpc.Examples.csproj
@@ -34,12 +34,12 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Google.Protobuf, Version=3.0.0.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
+      <HintPath>..\packages\Google.Protobuf.3.0.0-beta2\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Data.Linq" />
@@ -67,4 +67,4 @@
   <ItemGroup>
     <None Include="packages.config" />
   </ItemGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.Examples/Math.cs b/src/csharp/Grpc.Examples/Math.cs
index d0e1ee8..33c4f8d 100644
--- a/src/csharp/Grpc.Examples/Math.cs
+++ b/src/csharp/Grpc.Examples/Math.cs
@@ -9,42 +9,41 @@
 using scg = global::System.Collections.Generic;
 namespace Math {
 
-  namespace Proto {
+  /// <summary>Holder for reflection information generated from math.proto</summary>
+  [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+  public static partial class MathReflection {
 
-    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-    public static partial class Math {
-
-      #region Descriptor
-      public static pbr::FileDescriptor Descriptor {
-        get { return descriptor; }
-      }
-      private static pbr::FileDescriptor descriptor;
-
-      static Math() {
-        byte[] descriptorData = global::System.Convert.FromBase64String(
-            string.Concat(
-              "CgptYXRoLnByb3RvEgRtYXRoIiwKB0RpdkFyZ3MSEAoIZGl2aWRlbmQYASAB", 
-              "KAMSDwoHZGl2aXNvchgCIAEoAyIvCghEaXZSZXBseRIQCghxdW90aWVudBgB", 
-              "IAEoAxIRCglyZW1haW5kZXIYAiABKAMiGAoHRmliQXJncxINCgVsaW1pdBgB", 
-              "IAEoAyISCgNOdW0SCwoDbnVtGAEgASgDIhkKCEZpYlJlcGx5Eg0KBWNvdW50", 
-              "GAEgASgDMqQBCgRNYXRoEiYKA0RpdhINLm1hdGguRGl2QXJncxoOLm1hdGgu", 
-              "RGl2UmVwbHkiABIuCgdEaXZNYW55Eg0ubWF0aC5EaXZBcmdzGg4ubWF0aC5E", 
-              "aXZSZXBseSIAKAEwARIjCgNGaWISDS5tYXRoLkZpYkFyZ3MaCS5tYXRoLk51", 
-              "bSIAMAESHwoDU3VtEgkubWF0aC5OdW0aCS5tYXRoLk51bSIAKAFiBnByb3Rv", 
-              "Mw=="));
-        descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
-            new pbr::FileDescriptor[] { },
-            new pbr::GeneratedCodeInfo(null, new pbr::GeneratedCodeInfo[] {
-              new pbr::GeneratedCodeInfo(typeof(global::Math.DivArgs), new[]{ "Dividend", "Divisor" }, null, null, null),
-              new pbr::GeneratedCodeInfo(typeof(global::Math.DivReply), new[]{ "Quotient", "Remainder" }, null, null, null),
-              new pbr::GeneratedCodeInfo(typeof(global::Math.FibArgs), new[]{ "Limit" }, null, null, null),
-              new pbr::GeneratedCodeInfo(typeof(global::Math.Num), new[]{ "Num_" }, null, null, null),
-              new pbr::GeneratedCodeInfo(typeof(global::Math.FibReply), new[]{ "Count" }, null, null, null)
-            }));
-      }
-      #endregion
-
+    #region Descriptor
+    /// <summary>File descriptor for math.proto</summary>
+    public static pbr::FileDescriptor Descriptor {
+      get { return descriptor; }
     }
+    private static pbr::FileDescriptor descriptor;
+
+    static MathReflection() {
+      byte[] descriptorData = global::System.Convert.FromBase64String(
+          string.Concat(
+            "CgptYXRoLnByb3RvEgRtYXRoIiwKB0RpdkFyZ3MSEAoIZGl2aWRlbmQYASAB",
+            "KAMSDwoHZGl2aXNvchgCIAEoAyIvCghEaXZSZXBseRIQCghxdW90aWVudBgB",
+            "IAEoAxIRCglyZW1haW5kZXIYAiABKAMiGAoHRmliQXJncxINCgVsaW1pdBgB",
+            "IAEoAyISCgNOdW0SCwoDbnVtGAEgASgDIhkKCEZpYlJlcGx5Eg0KBWNvdW50",
+            "GAEgASgDMqQBCgRNYXRoEiYKA0RpdhINLm1hdGguRGl2QXJncxoOLm1hdGgu",
+            "RGl2UmVwbHkiABIuCgdEaXZNYW55Eg0ubWF0aC5EaXZBcmdzGg4ubWF0aC5E",
+            "aXZSZXBseSIAKAEwARIjCgNGaWISDS5tYXRoLkZpYkFyZ3MaCS5tYXRoLk51",
+            "bSIAMAESHwoDU3VtEgkubWF0aC5OdW0aCS5tYXRoLk51bSIAKAFiBnByb3Rv",
+            "Mw=="));
+      descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
+          new pbr::FileDescriptor[] { },
+          new pbr::GeneratedCodeInfo(null, new pbr::GeneratedCodeInfo[] {
+            new pbr::GeneratedCodeInfo(typeof(global::Math.DivArgs), global::Math.DivArgs.Parser, new[]{ "Dividend", "Divisor" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Math.DivReply), global::Math.DivReply.Parser, new[]{ "Quotient", "Remainder" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Math.FibArgs), global::Math.FibArgs.Parser, new[]{ "Limit" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Math.Num), global::Math.Num.Parser, new[]{ "Num_" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Math.FibReply), global::Math.FibReply.Parser, new[]{ "Count" }, null, null, null)
+          }));
+    }
+    #endregion
+
   }
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
@@ -53,7 +52,7 @@
     public static pb::MessageParser<DivArgs> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Math.Proto.Math.Descriptor.MessageTypes[0]; }
+      get { return global::Math.MathReflection.Descriptor.MessageTypes[0]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -75,6 +74,7 @@
       return new DivArgs(this);
     }
 
+    /// <summary>Field number for the "dividend" field.</summary>
     public const int DividendFieldNumber = 1;
     private long dividend_;
     public long Dividend {
@@ -84,6 +84,7 @@
       }
     }
 
+    /// <summary>Field number for the "divisor" field.</summary>
     public const int DivisorFieldNumber = 2;
     private long divisor_;
     public long Divisor {
@@ -117,7 +118,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -181,7 +182,7 @@
     public static pb::MessageParser<DivReply> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Math.Proto.Math.Descriptor.MessageTypes[1]; }
+      get { return global::Math.MathReflection.Descriptor.MessageTypes[1]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -203,6 +204,7 @@
       return new DivReply(this);
     }
 
+    /// <summary>Field number for the "quotient" field.</summary>
     public const int QuotientFieldNumber = 1;
     private long quotient_;
     public long Quotient {
@@ -212,6 +214,7 @@
       }
     }
 
+    /// <summary>Field number for the "remainder" field.</summary>
     public const int RemainderFieldNumber = 2;
     private long remainder_;
     public long Remainder {
@@ -245,7 +248,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -309,7 +312,7 @@
     public static pb::MessageParser<FibArgs> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Math.Proto.Math.Descriptor.MessageTypes[2]; }
+      get { return global::Math.MathReflection.Descriptor.MessageTypes[2]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -330,6 +333,7 @@
       return new FibArgs(this);
     }
 
+    /// <summary>Field number for the "limit" field.</summary>
     public const int LimitFieldNumber = 1;
     private long limit_;
     public long Limit {
@@ -361,7 +365,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -411,7 +415,7 @@
     public static pb::MessageParser<Num> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Math.Proto.Math.Descriptor.MessageTypes[3]; }
+      get { return global::Math.MathReflection.Descriptor.MessageTypes[3]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -432,6 +436,7 @@
       return new Num(this);
     }
 
+    /// <summary>Field number for the "num" field.</summary>
     public const int Num_FieldNumber = 1;
     private long num_;
     public long Num_ {
@@ -463,7 +468,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -513,7 +518,7 @@
     public static pb::MessageParser<FibReply> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Math.Proto.Math.Descriptor.MessageTypes[4]; }
+      get { return global::Math.MathReflection.Descriptor.MessageTypes[4]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -534,6 +539,7 @@
       return new FibReply(this);
     }
 
+    /// <summary>Field number for the "count" field.</summary>
     public const int CountFieldNumber = 1;
     private long count_;
     public long Count {
@@ -565,7 +571,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
diff --git a/src/csharp/Grpc.Examples/MathGrpc.cs b/src/csharp/Grpc.Examples/MathGrpc.cs
index 175d110..a6e878d 100644
--- a/src/csharp/Grpc.Examples/MathGrpc.cs
+++ b/src/csharp/Grpc.Examples/MathGrpc.cs
@@ -48,7 +48,7 @@
     // service descriptor
     public static global::Google.Protobuf.Reflection.ServiceDescriptor Descriptor
     {
-      get { return global::Math.Proto.Math.Descriptor.Services[0]; }
+      get { return global::Math.MathReflection.Descriptor.Services[0]; }
     }
 
     // client interface
diff --git a/src/csharp/Grpc.Examples/packages.config b/src/csharp/Grpc.Examples/packages.config
index adf8da2..f5131b8 100644
--- a/src/csharp/Grpc.Examples/packages.config
+++ b/src/csharp/Grpc.Examples/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />
+  <package id="Google.Protobuf" version="3.0.0-beta2" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.3" targetFramework="net45" />
   <package id="NUnit" version="2.6.4" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.csproj b/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.csproj
index 396dc43..bb6488b 100644
--- a/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.csproj
+++ b/src/csharp/Grpc.HealthCheck.Tests/Grpc.HealthCheck.Tests.csproj
@@ -34,12 +34,12 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Google.Protobuf, Version=3.0.0.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
+      <HintPath>..\packages\Google.Protobuf.3.0.0-beta2\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
     </Reference>
     <Reference Include="nunit.framework">
       <HintPath>..\packages\NUnit.2.6.4\lib\nunit.framework.dll</HintPath>
diff --git a/src/csharp/Grpc.HealthCheck.Tests/packages.config b/src/csharp/Grpc.HealthCheck.Tests/packages.config
index 40ffb85..4728093 100644
--- a/src/csharp/Grpc.HealthCheck.Tests/packages.config
+++ b/src/csharp/Grpc.HealthCheck.Tests/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />
+  <package id="Google.Protobuf" version="3.0.0-beta2" targetFramework="net45" />
   <package id="NUnit" version="2.6.4" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj
index 4e775a7..7ffab4b 100644
--- a/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj
+++ b/src/csharp/Grpc.HealthCheck/Grpc.HealthCheck.csproj
@@ -35,12 +35,12 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="Google.Protobuf, Version=3.0.0.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604, processorArchitecture=MSIL">
       <SpecificVersion>False</SpecificVersion>
-      <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
+      <HintPath>..\packages\Google.Protobuf.3.0.0-beta2\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
     </Reference>
     <Reference Include="System" />
     <Reference Include="System.Core" />
@@ -80,4 +80,4 @@
   <Target Name="AfterBuild">
   </Target>
   -->
-</Project>
+</Project>
\ No newline at end of file
diff --git a/src/csharp/Grpc.HealthCheck/Health.cs b/src/csharp/Grpc.HealthCheck/Health.cs
index 570e274..56673f1 100644
--- a/src/csharp/Grpc.HealthCheck/Health.cs
+++ b/src/csharp/Grpc.HealthCheck/Health.cs
@@ -9,39 +9,38 @@
 using scg = global::System.Collections.Generic;
 namespace Grpc.Health.V1Alpha {
 
-  namespace Proto {
+  /// <summary>Holder for reflection information generated from health.proto</summary>
+  [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+  public static partial class HealthReflection {
 
-    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-    public static partial class Health {
-
-      #region Descriptor
-      public static pbr::FileDescriptor Descriptor {
-        get { return descriptor; }
-      }
-      private static pbr::FileDescriptor descriptor;
-
-      static Health() {
-        byte[] descriptorData = global::System.Convert.FromBase64String(
-            string.Concat(
-              "CgxoZWFsdGgucHJvdG8SE2dycGMuaGVhbHRoLnYxYWxwaGEiMwoSSGVhbHRo", 
-              "Q2hlY2tSZXF1ZXN0EgwKBGhvc3QYASABKAkSDwoHc2VydmljZRgCIAEoCSKZ", 
-              "AQoTSGVhbHRoQ2hlY2tSZXNwb25zZRJGCgZzdGF0dXMYASABKA4yNi5ncnBj", 
-              "LmhlYWx0aC52MWFscGhhLkhlYWx0aENoZWNrUmVzcG9uc2UuU2VydmluZ1N0", 
-              "YXR1cyI6Cg1TZXJ2aW5nU3RhdHVzEgsKB1VOS05PV04QABILCgdTRVJWSU5H", 
-              "EAESDwoLTk9UX1NFUlZJTkcQAjJkCgZIZWFsdGgSWgoFQ2hlY2sSJy5ncnBj", 
-              "LmhlYWx0aC52MWFscGhhLkhlYWx0aENoZWNrUmVxdWVzdBooLmdycGMuaGVh", 
-              "bHRoLnYxYWxwaGEuSGVhbHRoQ2hlY2tSZXNwb25zZUIWqgITR3JwYy5IZWFs", 
-              "dGguVjFBbHBoYWIGcHJvdG8z"));
-        descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
-            new pbr::FileDescriptor[] { },
-            new pbr::GeneratedCodeInfo(null, new pbr::GeneratedCodeInfo[] {
-              new pbr::GeneratedCodeInfo(typeof(global::Grpc.Health.V1Alpha.HealthCheckRequest), new[]{ "Host", "Service" }, null, null, null),
-              new pbr::GeneratedCodeInfo(typeof(global::Grpc.Health.V1Alpha.HealthCheckResponse), new[]{ "Status" }, null, new[]{ typeof(global::Grpc.Health.V1Alpha.HealthCheckResponse.Types.ServingStatus) }, null)
-            }));
-      }
-      #endregion
-
+    #region Descriptor
+    /// <summary>File descriptor for health.proto</summary>
+    public static pbr::FileDescriptor Descriptor {
+      get { return descriptor; }
     }
+    private static pbr::FileDescriptor descriptor;
+
+    static HealthReflection() {
+      byte[] descriptorData = global::System.Convert.FromBase64String(
+          string.Concat(
+            "CgxoZWFsdGgucHJvdG8SE2dycGMuaGVhbHRoLnYxYWxwaGEiMwoSSGVhbHRo",
+            "Q2hlY2tSZXF1ZXN0EgwKBGhvc3QYASABKAkSDwoHc2VydmljZRgCIAEoCSKZ",
+            "AQoTSGVhbHRoQ2hlY2tSZXNwb25zZRJGCgZzdGF0dXMYASABKA4yNi5ncnBj",
+            "LmhlYWx0aC52MWFscGhhLkhlYWx0aENoZWNrUmVzcG9uc2UuU2VydmluZ1N0",
+            "YXR1cyI6Cg1TZXJ2aW5nU3RhdHVzEgsKB1VOS05PV04QABILCgdTRVJWSU5H",
+            "EAESDwoLTk9UX1NFUlZJTkcQAjJkCgZIZWFsdGgSWgoFQ2hlY2sSJy5ncnBj",
+            "LmhlYWx0aC52MWFscGhhLkhlYWx0aENoZWNrUmVxdWVzdBooLmdycGMuaGVh",
+            "bHRoLnYxYWxwaGEuSGVhbHRoQ2hlY2tSZXNwb25zZUIWqgITR3JwYy5IZWFs",
+            "dGguVjFBbHBoYWIGcHJvdG8z"));
+      descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
+          new pbr::FileDescriptor[] { },
+          new pbr::GeneratedCodeInfo(null, new pbr::GeneratedCodeInfo[] {
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Health.V1Alpha.HealthCheckRequest), global::Grpc.Health.V1Alpha.HealthCheckRequest.Parser, new[]{ "Host", "Service" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Health.V1Alpha.HealthCheckResponse), global::Grpc.Health.V1Alpha.HealthCheckResponse.Parser, new[]{ "Status" }, null, new[]{ typeof(global::Grpc.Health.V1Alpha.HealthCheckResponse.Types.ServingStatus) }, null)
+          }));
+    }
+    #endregion
+
   }
   #region Messages
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
@@ -50,7 +49,7 @@
     public static pb::MessageParser<HealthCheckRequest> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Health.V1Alpha.Proto.Health.Descriptor.MessageTypes[0]; }
+      get { return global::Grpc.Health.V1Alpha.HealthReflection.Descriptor.MessageTypes[0]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -72,6 +71,7 @@
       return new HealthCheckRequest(this);
     }
 
+    /// <summary>Field number for the "host" field.</summary>
     public const int HostFieldNumber = 1;
     private string host_ = "";
     public string Host {
@@ -81,6 +81,7 @@
       }
     }
 
+    /// <summary>Field number for the "service" field.</summary>
     public const int ServiceFieldNumber = 2;
     private string service_ = "";
     public string Service {
@@ -114,7 +115,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -178,7 +179,7 @@
     public static pb::MessageParser<HealthCheckResponse> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Health.V1Alpha.Proto.Health.Descriptor.MessageTypes[1]; }
+      get { return global::Grpc.Health.V1Alpha.HealthReflection.Descriptor.MessageTypes[1]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -199,6 +200,7 @@
       return new HealthCheckResponse(this);
     }
 
+    /// <summary>Field number for the "status" field.</summary>
     public const int StatusFieldNumber = 1;
     private global::Grpc.Health.V1Alpha.HealthCheckResponse.Types.ServingStatus status_ = global::Grpc.Health.V1Alpha.HealthCheckResponse.Types.ServingStatus.UNKNOWN;
     public global::Grpc.Health.V1Alpha.HealthCheckResponse.Types.ServingStatus Status {
@@ -230,7 +232,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -273,6 +275,7 @@
     }
 
     #region Nested types
+    /// <summary>Container for nested types declared in the HealthCheckResponse message type.</summary>
     [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
     public static partial class Types {
       public enum ServingStatus {
diff --git a/src/csharp/Grpc.HealthCheck/HealthGrpc.cs b/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
index da721ce..882edd5 100644
--- a/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
+++ b/src/csharp/Grpc.HealthCheck/HealthGrpc.cs
@@ -25,7 +25,7 @@
     // service descriptor
     public static global::Google.Protobuf.Reflection.ServiceDescriptor Descriptor
     {
-      get { return global::Grpc.Health.V1Alpha.Proto.Health.Descriptor.Services[0]; }
+      get { return global::Grpc.Health.V1Alpha.HealthReflection.Descriptor.Services[0]; }
     }
 
     // client interface
diff --git a/src/csharp/Grpc.HealthCheck/packages.config b/src/csharp/Grpc.HealthCheck/packages.config
index cafff61..04eb42d 100644
--- a/src/csharp/Grpc.HealthCheck/packages.config
+++ b/src/csharp/Grpc.HealthCheck/packages.config
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
-  <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />
+  <package id="Google.Protobuf" version="3.0.0-beta2" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.3" targetFramework="net45" />
 </packages>
\ No newline at end of file
diff --git a/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.csproj b/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.csproj
index 8bc2082..74d73e8 100644
--- a/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.csproj
+++ b/src/csharp/Grpc.IntegrationTesting.Client/Grpc.IntegrationTesting.Client.csproj
@@ -36,7 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="BouncyCastle.Crypto, Version=1.7.4137.9688, Culture=neutral, PublicKeyToken=a4292a325f69b123, processorArchitecture=MSIL">
diff --git a/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.csproj b/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.csproj
index 342eead..0dc2751 100644
--- a/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.csproj
+++ b/src/csharp/Grpc.IntegrationTesting.QpsWorker/Grpc.IntegrationTesting.QpsWorker.csproj
@@ -34,7 +34,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="System" />
diff --git a/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.csproj b/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.csproj
index 1eadbeb..f877b7f 100644
--- a/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.csproj
+++ b/src/csharp/Grpc.IntegrationTesting.Server/Grpc.IntegrationTesting.Server.csproj
@@ -36,7 +36,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="BouncyCastle.Crypto, Version=1.7.4137.9688, Culture=neutral, PublicKeyToken=a4292a325f69b123, processorArchitecture=MSIL">
diff --git a/src/csharp/Grpc.IntegrationTesting/Control.cs b/src/csharp/Grpc.IntegrationTesting/Control.cs
index 4764e10..b90243c 100644
--- a/src/csharp/Grpc.IntegrationTesting/Control.cs
+++ b/src/csharp/Grpc.IntegrationTesting/Control.cs
@@ -1,5 +1,5 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: test/proto/benchmarks/control.proto
+// source: src/proto/grpc/testing/control.proto
 #pragma warning disable 1591, 0612, 3021
 #region Designer generated code
 
@@ -9,78 +9,80 @@
 using scg = global::System.Collections.Generic;
 namespace Grpc.Testing {
 
+  /// <summary>Holder for reflection information generated from src/proto/grpc/testing/control.proto</summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-  public static partial class Control {
+  public static partial class ControlReflection {
 
     #region Descriptor
+    /// <summary>File descriptor for src/proto/grpc/testing/control.proto</summary>
     public static pbr::FileDescriptor Descriptor {
       get { return descriptor; }
     }
     private static pbr::FileDescriptor descriptor;
 
-    static Control() {
+    static ControlReflection() {
       byte[] descriptorData = global::System.Convert.FromBase64String(
           string.Concat(
-            "CiN0ZXN0L3Byb3RvL2JlbmNobWFya3MvY29udHJvbC5wcm90bxIMZ3JwYy50", 
-            "ZXN0aW5nGiR0ZXN0L3Byb3RvL2JlbmNobWFya3MvcGF5bG9hZHMucHJvdG8a", 
-            "IXRlc3QvcHJvdG8vYmVuY2htYXJrcy9zdGF0cy5wcm90byIlCg1Qb2lzc29u", 
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-            "ZHMYByABKAUSEgoKY29yZV9saW1pdBgIIAEoBRIzCg5wYXlsb2FkX2NvbmZp", 
-            "ZxgJIAEoCzIbLmdycGMudGVzdGluZy5QYXlsb2FkQ29uZmlnImgKClNlcnZl", 
-            "ckFyZ3MSKwoFc2V0dXAYASABKAsyGi5ncnBjLnRlc3RpbmcuU2VydmVyQ29u", 
-            "ZmlnSAASIgoEbWFyaxgCIAEoCzISLmdycGMudGVzdGluZy5NYXJrSABCCQoH", 
-            "YXJndHlwZSJVCgxTZXJ2ZXJTdGF0dXMSKAoFc3RhdHMYASABKAsyGS5ncnBj", 
-            "LnRlc3RpbmcuU2VydmVyU3RhdHMSDAoEcG9ydBgCIAEoBRINCgVjb3JlcxgD", 
-            "IAEoBSovCgpDbGllbnRUeXBlEg8KC1NZTkNfQ0xJRU5UEAASEAoMQVNZTkNf", 
-            "Q0xJRU5UEAEqLwoKU2VydmVyVHlwZRIPCgtTWU5DX1NFUlZFUhAAEhAKDEFT", 
-            "WU5DX1NFUlZFUhABKiMKB1JwY1R5cGUSCQoFVU5BUlkQABINCglTVFJFQU1J", 
-            "TkcQAWIGcHJvdG8z"));
-      descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
-          new pbr::FileDescriptor[] { global::Grpc.Testing.Payloads.Descriptor, global::Grpc.Testing.Stats.Descriptor, },
+            "CiRzcmMvcHJvdG8vZ3JwYy90ZXN0aW5nL2NvbnRyb2wucHJvdG8SDGdycGMu",
+            "dGVzdGluZxolc3JjL3Byb3RvL2dycGMvdGVzdGluZy9wYXlsb2Fkcy5wcm90",
+            "bxoic3JjL3Byb3RvL2dycGMvdGVzdGluZy9zdGF0cy5wcm90byIlCg1Qb2lz",
+            "c29uUGFyYW1zEhQKDG9mZmVyZWRfbG9hZBgBIAEoASJBCg1Vbmlmb3JtUGFy",
+            "YW1zEhcKD2ludGVyYXJyaXZhbF9sbxgBIAEoARIXCg9pbnRlcmFycml2YWxf",
+            "aGkYAiABKAEiKwoTRGV0ZXJtaW5pc3RpY1BhcmFtcxIUCgxvZmZlcmVkX2xv",
+            "YWQYASABKAEiOAoMUGFyZXRvUGFyYW1zEhkKEWludGVyYXJyaXZhbF9iYXNl",
+            "GAEgASgBEg0KBWFscGhhGAIgASgBIhIKEENsb3NlZExvb3BQYXJhbXMijgIK",
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+            "cnBjLnRlc3RpbmcuVW5pZm9ybVBhcmFtc0gAEjMKBmRldGVybRgEIAEoCzIh",
+            "LmdycGMudGVzdGluZy5EZXRlcm1pbmlzdGljUGFyYW1zSAASLAoGcGFyZXRv",
+            "GAUgASgLMhouZ3JwYy50ZXN0aW5nLlBhcmV0b1BhcmFtc0gAQgYKBGxvYWQi",
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+            "aXN0b2dyYW1fcGFyYW1zGAwgASgLMh0uZ3JwYy50ZXN0aW5nLkhpc3RvZ3Jh",
+            "bVBhcmFtcyI4CgxDbGllbnRTdGF0dXMSKAoFc3RhdHMYASABKAsyGS5ncnBj",
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+            "a0gAQgkKB2FyZ3R5cGUi9wEKDFNlcnZlckNvbmZpZxItCgtzZXJ2ZXJfdHlw",
+            "ZRgBIAEoDjIYLmdycGMudGVzdGluZy5TZXJ2ZXJUeXBlEjUKD3NlY3VyaXR5",
+            "X3BhcmFtcxgCIAEoCzIcLmdycGMudGVzdGluZy5TZWN1cml0eVBhcmFtcxIM",
+            "CgRob3N0GAMgASgJEgwKBHBvcnQYBCABKAUSHAoUYXN5bmNfc2VydmVyX3Ro",
+            "cmVhZHMYByABKAUSEgoKY29yZV9saW1pdBgIIAEoBRIzCg5wYXlsb2FkX2Nv",
+            "bmZpZxgJIAEoCzIbLmdycGMudGVzdGluZy5QYXlsb2FkQ29uZmlnImgKClNl",
+            "cnZlckFyZ3MSKwoFc2V0dXAYASABKAsyGi5ncnBjLnRlc3RpbmcuU2VydmVy",
+            "Q29uZmlnSAASIgoEbWFyaxgCIAEoCzISLmdycGMudGVzdGluZy5NYXJrSABC",
+            "CQoHYXJndHlwZSJVCgxTZXJ2ZXJTdGF0dXMSKAoFc3RhdHMYASABKAsyGS5n",
+            "cnBjLnRlc3RpbmcuU2VydmVyU3RhdHMSDAoEcG9ydBgCIAEoBRINCgVjb3Jl",
+            "cxgDIAEoBSovCgpDbGllbnRUeXBlEg8KC1NZTkNfQ0xJRU5UEAASEAoMQVNZ",
+            "TkNfQ0xJRU5UEAEqLwoKU2VydmVyVHlwZRIPCgtTWU5DX1NFUlZFUhAAEhAK",
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+            "QU1JTkcQAWIGcHJvdG8z"));
+      descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
+          new pbr::FileDescriptor[] { global::Grpc.Testing.PayloadsReflection.Descriptor, global::Grpc.Testing.StatsReflection.Descriptor, },
           new pbr::GeneratedCodeInfo(new[] {typeof(global::Grpc.Testing.ClientType), typeof(global::Grpc.Testing.ServerType), typeof(global::Grpc.Testing.RpcType), }, new pbr::GeneratedCodeInfo[] {
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.PoissonParams), new[]{ "OfferedLoad" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.UniformParams), new[]{ "InterarrivalLo", "InterarrivalHi" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.DeterministicParams), new[]{ "OfferedLoad" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ParetoParams), new[]{ "InterarrivalBase", "Alpha" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ClosedLoopParams), null, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.LoadParams), new[]{ "ClosedLoop", "Poisson", "Uniform", "Determ", "Pareto" }, new[]{ "Load" }, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.SecurityParams), new[]{ "UseTestCa", "ServerHostOverride" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ClientConfig), new[]{ "ServerTargets", "ClientType", "SecurityParams", "OutstandingRpcsPerChannel", "ClientChannels", "AsyncClientThreads", "RpcType", "LoadParams", "PayloadConfig", "HistogramParams" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ClientStatus), new[]{ "Stats" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.Mark), new[]{ "Reset" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ClientArgs), new[]{ "Setup", "Mark" }, new[]{ "Argtype" }, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ServerConfig), new[]{ "ServerType", "SecurityParams", "Host", "Port", "AsyncServerThreads", "CoreLimit", "PayloadConfig" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ServerArgs), new[]{ "Setup", "Mark" }, new[]{ "Argtype" }, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ServerStatus), new[]{ "Stats", "Port", "Cores" }, null, null, null)
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.PoissonParams), global::Grpc.Testing.PoissonParams.Parser, new[]{ "OfferedLoad" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.UniformParams), global::Grpc.Testing.UniformParams.Parser, new[]{ "InterarrivalLo", "InterarrivalHi" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.DeterministicParams), global::Grpc.Testing.DeterministicParams.Parser, new[]{ "OfferedLoad" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ParetoParams), global::Grpc.Testing.ParetoParams.Parser, new[]{ "InterarrivalBase", "Alpha" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ClosedLoopParams), global::Grpc.Testing.ClosedLoopParams.Parser, null, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.LoadParams), global::Grpc.Testing.LoadParams.Parser, new[]{ "ClosedLoop", "Poisson", "Uniform", "Determ", "Pareto" }, new[]{ "Load" }, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.SecurityParams), global::Grpc.Testing.SecurityParams.Parser, new[]{ "UseTestCa", "ServerHostOverride" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ClientConfig), global::Grpc.Testing.ClientConfig.Parser, new[]{ "ServerTargets", "ClientType", "SecurityParams", "OutstandingRpcsPerChannel", "ClientChannels", "AsyncClientThreads", "RpcType", "LoadParams", "PayloadConfig", "HistogramParams" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ClientStatus), global::Grpc.Testing.ClientStatus.Parser, new[]{ "Stats" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.Mark), global::Grpc.Testing.Mark.Parser, new[]{ "Reset" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ClientArgs), global::Grpc.Testing.ClientArgs.Parser, new[]{ "Setup", "Mark" }, new[]{ "Argtype" }, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ServerConfig), global::Grpc.Testing.ServerConfig.Parser, new[]{ "ServerType", "SecurityParams", "Host", "Port", "AsyncServerThreads", "CoreLimit", "PayloadConfig" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ServerArgs), global::Grpc.Testing.ServerArgs.Parser, new[]{ "Setup", "Mark" }, new[]{ "Argtype" }, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ServerStatus), global::Grpc.Testing.ServerStatus.Parser, new[]{ "Stats", "Port", "Cores" }, null, null, null)
           }));
     }
     #endregion
@@ -105,13 +107,17 @@
   #endregion
 
   #region Messages
+  /// <summary>
+  ///  Parameters of poisson process distribution, which is a good representation
+  ///  of activity coming in from independent identical stationary sources.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class PoissonParams : pb::IMessage<PoissonParams> {
     private static readonly pb::MessageParser<PoissonParams> _parser = new pb::MessageParser<PoissonParams>(() => new PoissonParams());
     public static pb::MessageParser<PoissonParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[0]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[0]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -132,8 +138,12 @@
       return new PoissonParams(this);
     }
 
+    /// <summary>Field number for the "offered_load" field.</summary>
     public const int OfferedLoadFieldNumber = 1;
     private double offeredLoad_;
+    /// <summary>
+    ///  The rate of arrivals (a.k.a. lambda parameter of the exp distribution).
+    /// </summary>
     public double OfferedLoad {
       get { return offeredLoad_; }
       set {
@@ -163,7 +173,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -213,7 +223,7 @@
     public static pb::MessageParser<UniformParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[1]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[1]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -235,6 +245,7 @@
       return new UniformParams(this);
     }
 
+    /// <summary>Field number for the "interarrival_lo" field.</summary>
     public const int InterarrivalLoFieldNumber = 1;
     private double interarrivalLo_;
     public double InterarrivalLo {
@@ -244,6 +255,7 @@
       }
     }
 
+    /// <summary>Field number for the "interarrival_hi" field.</summary>
     public const int InterarrivalHiFieldNumber = 2;
     private double interarrivalHi_;
     public double InterarrivalHi {
@@ -277,7 +289,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -341,7 +353,7 @@
     public static pb::MessageParser<DeterministicParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[2]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[2]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -362,6 +374,7 @@
       return new DeterministicParams(this);
     }
 
+    /// <summary>Field number for the "offered_load" field.</summary>
     public const int OfferedLoadFieldNumber = 1;
     private double offeredLoad_;
     public double OfferedLoad {
@@ -393,7 +406,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -443,7 +456,7 @@
     public static pb::MessageParser<ParetoParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[3]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[3]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -465,6 +478,7 @@
       return new ParetoParams(this);
     }
 
+    /// <summary>Field number for the "interarrival_base" field.</summary>
     public const int InterarrivalBaseFieldNumber = 1;
     private double interarrivalBase_;
     public double InterarrivalBase {
@@ -474,6 +488,7 @@
       }
     }
 
+    /// <summary>Field number for the "alpha" field.</summary>
     public const int AlphaFieldNumber = 2;
     private double alpha_;
     public double Alpha {
@@ -507,7 +522,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -565,13 +580,17 @@
 
   }
 
+  /// <summary>
+  ///  Once an RPC finishes, immediately start a new one.
+  ///  No configuration parameters needed.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class ClosedLoopParams : pb::IMessage<ClosedLoopParams> {
     private static readonly pb::MessageParser<ClosedLoopParams> _parser = new pb::MessageParser<ClosedLoopParams>(() => new ClosedLoopParams());
     public static pb::MessageParser<ClosedLoopParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[4]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[4]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -611,7 +630,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -647,7 +666,7 @@
     public static pb::MessageParser<LoadParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[5]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[5]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -685,6 +704,7 @@
       return new LoadParams(this);
     }
 
+    /// <summary>Field number for the "closed_loop" field.</summary>
     public const int ClosedLoopFieldNumber = 1;
     public global::Grpc.Testing.ClosedLoopParams ClosedLoop {
       get { return loadCase_ == LoadOneofCase.ClosedLoop ? (global::Grpc.Testing.ClosedLoopParams) load_ : null; }
@@ -694,6 +714,7 @@
       }
     }
 
+    /// <summary>Field number for the "poisson" field.</summary>
     public const int PoissonFieldNumber = 2;
     public global::Grpc.Testing.PoissonParams Poisson {
       get { return loadCase_ == LoadOneofCase.Poisson ? (global::Grpc.Testing.PoissonParams) load_ : null; }
@@ -703,6 +724,7 @@
       }
     }
 
+    /// <summary>Field number for the "uniform" field.</summary>
     public const int UniformFieldNumber = 3;
     public global::Grpc.Testing.UniformParams Uniform {
       get { return loadCase_ == LoadOneofCase.Uniform ? (global::Grpc.Testing.UniformParams) load_ : null; }
@@ -712,6 +734,7 @@
       }
     }
 
+    /// <summary>Field number for the "determ" field.</summary>
     public const int DetermFieldNumber = 4;
     public global::Grpc.Testing.DeterministicParams Determ {
       get { return loadCase_ == LoadOneofCase.Determ ? (global::Grpc.Testing.DeterministicParams) load_ : null; }
@@ -721,6 +744,7 @@
       }
     }
 
+    /// <summary>Field number for the "pareto" field.</summary>
     public const int ParetoFieldNumber = 5;
     public global::Grpc.Testing.ParetoParams Pareto {
       get { return loadCase_ == LoadOneofCase.Pareto ? (global::Grpc.Testing.ParetoParams) load_ : null; }
@@ -731,6 +755,7 @@
     }
 
     private object load_;
+    /// <summary>Enum of possible cases for the "load" oneof.</summary>
     public enum LoadOneofCase {
       None = 0,
       ClosedLoop = 1,
@@ -765,6 +790,7 @@
       if (!object.Equals(Uniform, other.Uniform)) return false;
       if (!object.Equals(Determ, other.Determ)) return false;
       if (!object.Equals(Pareto, other.Pareto)) return false;
+      if (LoadCase != other.LoadCase) return false;
       return true;
     }
 
@@ -775,11 +801,12 @@
       if (loadCase_ == LoadOneofCase.Uniform) hash ^= Uniform.GetHashCode();
       if (loadCase_ == LoadOneofCase.Determ) hash ^= Determ.GetHashCode();
       if (loadCase_ == LoadOneofCase.Pareto) hash ^= Pareto.GetHashCode();
+      hash ^= (int) loadCase_;
       return hash;
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -907,13 +934,16 @@
 
   }
 
+  /// <summary>
+  ///  presence of SecurityParams implies use of TLS
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class SecurityParams : pb::IMessage<SecurityParams> {
     private static readonly pb::MessageParser<SecurityParams> _parser = new pb::MessageParser<SecurityParams>(() => new SecurityParams());
     public static pb::MessageParser<SecurityParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[6]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[6]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -935,6 +965,7 @@
       return new SecurityParams(this);
     }
 
+    /// <summary>Field number for the "use_test_ca" field.</summary>
     public const int UseTestCaFieldNumber = 1;
     private bool useTestCa_;
     public bool UseTestCa {
@@ -944,6 +975,7 @@
       }
     }
 
+    /// <summary>Field number for the "server_host_override" field.</summary>
     public const int ServerHostOverrideFieldNumber = 2;
     private string serverHostOverride_ = "";
     public string ServerHostOverride {
@@ -977,7 +1009,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -1041,7 +1073,7 @@
     public static pb::MessageParser<ClientConfig> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[7]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[7]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1071,14 +1103,19 @@
       return new ClientConfig(this);
     }
 
+    /// <summary>Field number for the "server_targets" field.</summary>
     public const int ServerTargetsFieldNumber = 1;
     private static readonly pb::FieldCodec<string> _repeated_serverTargets_codec
         = pb::FieldCodec.ForString(10);
     private readonly pbc::RepeatedField<string> serverTargets_ = new pbc::RepeatedField<string>();
+    /// <summary>
+    ///  List of targets to connect to. At least one target needs to be specified.
+    /// </summary>
     public pbc::RepeatedField<string> ServerTargets {
       get { return serverTargets_; }
     }
 
+    /// <summary>Field number for the "client_type" field.</summary>
     public const int ClientTypeFieldNumber = 2;
     private global::Grpc.Testing.ClientType clientType_ = global::Grpc.Testing.ClientType.SYNC_CLIENT;
     public global::Grpc.Testing.ClientType ClientType {
@@ -1088,6 +1125,7 @@
       }
     }
 
+    /// <summary>Field number for the "security_params" field.</summary>
     public const int SecurityParamsFieldNumber = 3;
     private global::Grpc.Testing.SecurityParams securityParams_;
     public global::Grpc.Testing.SecurityParams SecurityParams {
@@ -1097,8 +1135,13 @@
       }
     }
 
+    /// <summary>Field number for the "outstanding_rpcs_per_channel" field.</summary>
     public const int OutstandingRpcsPerChannelFieldNumber = 4;
     private int outstandingRpcsPerChannel_;
+    /// <summary>
+    ///  How many concurrent RPCs to start for each channel.
+    ///  For synchronous client, use a separate thread for each outstanding RPC.
+    /// </summary>
     public int OutstandingRpcsPerChannel {
       get { return outstandingRpcsPerChannel_; }
       set {
@@ -1106,8 +1149,13 @@
       }
     }
 
+    /// <summary>Field number for the "client_channels" field.</summary>
     public const int ClientChannelsFieldNumber = 5;
     private int clientChannels_;
+    /// <summary>
+    ///  Number of independent client channels to create.
+    ///  i-th channel will connect to server_target[i % server_targets.size()]
+    /// </summary>
     public int ClientChannels {
       get { return clientChannels_; }
       set {
@@ -1115,8 +1163,12 @@
       }
     }
 
+    /// <summary>Field number for the "async_client_threads" field.</summary>
     public const int AsyncClientThreadsFieldNumber = 7;
     private int asyncClientThreads_;
+    /// <summary>
+    ///  Only for async client. Number of threads to use to start/manage RPCs.
+    /// </summary>
     public int AsyncClientThreads {
       get { return asyncClientThreads_; }
       set {
@@ -1124,6 +1176,7 @@
       }
     }
 
+    /// <summary>Field number for the "rpc_type" field.</summary>
     public const int RpcTypeFieldNumber = 8;
     private global::Grpc.Testing.RpcType rpcType_ = global::Grpc.Testing.RpcType.UNARY;
     public global::Grpc.Testing.RpcType RpcType {
@@ -1133,8 +1186,12 @@
       }
     }
 
+    /// <summary>Field number for the "load_params" field.</summary>
     public const int LoadParamsFieldNumber = 10;
     private global::Grpc.Testing.LoadParams loadParams_;
+    /// <summary>
+    ///  The requested load for the entire client (aggregated over all the threads).
+    /// </summary>
     public global::Grpc.Testing.LoadParams LoadParams {
       get { return loadParams_; }
       set {
@@ -1142,6 +1199,7 @@
       }
     }
 
+    /// <summary>Field number for the "payload_config" field.</summary>
     public const int PayloadConfigFieldNumber = 11;
     private global::Grpc.Testing.PayloadConfig payloadConfig_;
     public global::Grpc.Testing.PayloadConfig PayloadConfig {
@@ -1151,6 +1209,7 @@
       }
     }
 
+    /// <summary>Field number for the "histogram_params" field.</summary>
     public const int HistogramParamsFieldNumber = 12;
     private global::Grpc.Testing.HistogramParams histogramParams_;
     public global::Grpc.Testing.HistogramParams HistogramParams {
@@ -1200,7 +1259,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -1393,7 +1452,7 @@
     public static pb::MessageParser<ClientStatus> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[8]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[8]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1414,6 +1473,7 @@
       return new ClientStatus(this);
     }
 
+    /// <summary>Field number for the "stats" field.</summary>
     public const int StatsFieldNumber = 1;
     private global::Grpc.Testing.ClientStats stats_;
     public global::Grpc.Testing.ClientStats Stats {
@@ -1445,7 +1505,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -1495,13 +1555,16 @@
 
   }
 
+  /// <summary>
+  ///  Request current stats
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class Mark : pb::IMessage<Mark> {
     private static readonly pb::MessageParser<Mark> _parser = new pb::MessageParser<Mark>(() => new Mark());
     public static pb::MessageParser<Mark> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[9]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[9]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1522,8 +1585,12 @@
       return new Mark(this);
     }
 
+    /// <summary>Field number for the "reset" field.</summary>
     public const int ResetFieldNumber = 1;
     private bool reset_;
+    /// <summary>
+    ///  if true, the stats will be reset after taking their snapshot.
+    /// </summary>
     public bool Reset {
       get { return reset_; }
       set {
@@ -1553,7 +1620,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -1603,7 +1670,7 @@
     public static pb::MessageParser<ClientArgs> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[10]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[10]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1632,6 +1699,7 @@
       return new ClientArgs(this);
     }
 
+    /// <summary>Field number for the "setup" field.</summary>
     public const int SetupFieldNumber = 1;
     public global::Grpc.Testing.ClientConfig Setup {
       get { return argtypeCase_ == ArgtypeOneofCase.Setup ? (global::Grpc.Testing.ClientConfig) argtype_ : null; }
@@ -1641,6 +1709,7 @@
       }
     }
 
+    /// <summary>Field number for the "mark" field.</summary>
     public const int MarkFieldNumber = 2;
     public global::Grpc.Testing.Mark Mark {
       get { return argtypeCase_ == ArgtypeOneofCase.Mark ? (global::Grpc.Testing.Mark) argtype_ : null; }
@@ -1651,6 +1720,7 @@
     }
 
     private object argtype_;
+    /// <summary>Enum of possible cases for the "argtype" oneof.</summary>
     public enum ArgtypeOneofCase {
       None = 0,
       Setup = 1,
@@ -1679,6 +1749,7 @@
       }
       if (!object.Equals(Setup, other.Setup)) return false;
       if (!object.Equals(Mark, other.Mark)) return false;
+      if (ArgtypeCase != other.ArgtypeCase) return false;
       return true;
     }
 
@@ -1686,11 +1757,12 @@
       int hash = 1;
       if (argtypeCase_ == ArgtypeOneofCase.Setup) hash ^= Setup.GetHashCode();
       if (argtypeCase_ == ArgtypeOneofCase.Mark) hash ^= Mark.GetHashCode();
+      hash ^= (int) argtypeCase_;
       return hash;
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -1767,7 +1839,7 @@
     public static pb::MessageParser<ServerConfig> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[11]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[11]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1794,6 +1866,7 @@
       return new ServerConfig(this);
     }
 
+    /// <summary>Field number for the "server_type" field.</summary>
     public const int ServerTypeFieldNumber = 1;
     private global::Grpc.Testing.ServerType serverType_ = global::Grpc.Testing.ServerType.SYNC_SERVER;
     public global::Grpc.Testing.ServerType ServerType {
@@ -1803,6 +1876,7 @@
       }
     }
 
+    /// <summary>Field number for the "security_params" field.</summary>
     public const int SecurityParamsFieldNumber = 2;
     private global::Grpc.Testing.SecurityParams securityParams_;
     public global::Grpc.Testing.SecurityParams SecurityParams {
@@ -1812,8 +1886,12 @@
       }
     }
 
+    /// <summary>Field number for the "host" field.</summary>
     public const int HostFieldNumber = 3;
     private string host_ = "";
+    /// <summary>
+    ///  Host on which to listen.
+    /// </summary>
     public string Host {
       get { return host_; }
       set {
@@ -1821,8 +1899,12 @@
       }
     }
 
+    /// <summary>Field number for the "port" field.</summary>
     public const int PortFieldNumber = 4;
     private int port_;
+    /// <summary>
+    ///  Port on which to listen. Zero means pick unused port.
+    /// </summary>
     public int Port {
       get { return port_; }
       set {
@@ -1830,8 +1912,12 @@
       }
     }
 
+    /// <summary>Field number for the "async_server_threads" field.</summary>
     public const int AsyncServerThreadsFieldNumber = 7;
     private int asyncServerThreads_;
+    /// <summary>
+    ///  Only for async server. Number of threads used to serve the requests.
+    /// </summary>
     public int AsyncServerThreads {
       get { return asyncServerThreads_; }
       set {
@@ -1839,8 +1925,12 @@
       }
     }
 
+    /// <summary>Field number for the "core_limit" field.</summary>
     public const int CoreLimitFieldNumber = 8;
     private int coreLimit_;
+    /// <summary>
+    ///  restrict core usage, currently unused
+    /// </summary>
     public int CoreLimit {
       get { return coreLimit_; }
       set {
@@ -1848,6 +1938,7 @@
       }
     }
 
+    /// <summary>Field number for the "payload_config" field.</summary>
     public const int PayloadConfigFieldNumber = 9;
     private global::Grpc.Testing.PayloadConfig payloadConfig_;
     public global::Grpc.Testing.PayloadConfig PayloadConfig {
@@ -1891,7 +1982,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -2037,7 +2128,7 @@
     public static pb::MessageParser<ServerArgs> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[12]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[12]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -2066,6 +2157,7 @@
       return new ServerArgs(this);
     }
 
+    /// <summary>Field number for the "setup" field.</summary>
     public const int SetupFieldNumber = 1;
     public global::Grpc.Testing.ServerConfig Setup {
       get { return argtypeCase_ == ArgtypeOneofCase.Setup ? (global::Grpc.Testing.ServerConfig) argtype_ : null; }
@@ -2075,6 +2167,7 @@
       }
     }
 
+    /// <summary>Field number for the "mark" field.</summary>
     public const int MarkFieldNumber = 2;
     public global::Grpc.Testing.Mark Mark {
       get { return argtypeCase_ == ArgtypeOneofCase.Mark ? (global::Grpc.Testing.Mark) argtype_ : null; }
@@ -2085,6 +2178,7 @@
     }
 
     private object argtype_;
+    /// <summary>Enum of possible cases for the "argtype" oneof.</summary>
     public enum ArgtypeOneofCase {
       None = 0,
       Setup = 1,
@@ -2113,6 +2207,7 @@
       }
       if (!object.Equals(Setup, other.Setup)) return false;
       if (!object.Equals(Mark, other.Mark)) return false;
+      if (ArgtypeCase != other.ArgtypeCase) return false;
       return true;
     }
 
@@ -2120,11 +2215,12 @@
       int hash = 1;
       if (argtypeCase_ == ArgtypeOneofCase.Setup) hash ^= Setup.GetHashCode();
       if (argtypeCase_ == ArgtypeOneofCase.Mark) hash ^= Mark.GetHashCode();
+      hash ^= (int) argtypeCase_;
       return hash;
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -2201,7 +2297,7 @@
     public static pb::MessageParser<ServerStatus> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Control.Descriptor.MessageTypes[13]; }
+      get { return global::Grpc.Testing.ControlReflection.Descriptor.MessageTypes[13]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -2224,6 +2320,7 @@
       return new ServerStatus(this);
     }
 
+    /// <summary>Field number for the "stats" field.</summary>
     public const int StatsFieldNumber = 1;
     private global::Grpc.Testing.ServerStats stats_;
     public global::Grpc.Testing.ServerStats Stats {
@@ -2233,8 +2330,12 @@
       }
     }
 
+    /// <summary>Field number for the "port" field.</summary>
     public const int PortFieldNumber = 2;
     private int port_;
+    /// <summary>
+    ///  the port bound by the server
+    /// </summary>
     public int Port {
       get { return port_; }
       set {
@@ -2242,8 +2343,12 @@
       }
     }
 
+    /// <summary>Field number for the "cores" field.</summary>
     public const int CoresFieldNumber = 3;
     private int cores_;
+    /// <summary>
+    ///  Number of cores on the server. See gpr_cpu_num_cores.
+    /// </summary>
     public int Cores {
       get { return cores_; }
       set {
@@ -2277,7 +2382,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
diff --git a/src/csharp/Grpc.IntegrationTesting/Empty.cs b/src/csharp/Grpc.IntegrationTesting/Empty.cs
index 9bf2b8f..4323c5a 100644
--- a/src/csharp/Grpc.IntegrationTesting/Empty.cs
+++ b/src/csharp/Grpc.IntegrationTesting/Empty.cs
@@ -1,5 +1,5 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: test/proto/empty.proto
+// source: src/proto/grpc/testing/empty.proto
 #pragma warning disable 1591, 0612, 3021
 #region Designer generated code
 
@@ -9,40 +9,48 @@
 using scg = global::System.Collections.Generic;
 namespace Grpc.Testing {
 
-  namespace Proto {
+  /// <summary>Holder for reflection information generated from src/proto/grpc/testing/empty.proto</summary>
+  [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
+  public static partial class EmptyReflection {
 
-    [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-    public static partial class Empty {
-
-      #region Descriptor
-      public static pbr::FileDescriptor Descriptor {
-        get { return descriptor; }
-      }
-      private static pbr::FileDescriptor descriptor;
-
-      static Empty() {
-        byte[] descriptorData = global::System.Convert.FromBase64String(
-            string.Concat(
-              "ChZ0ZXN0L3Byb3RvL2VtcHR5LnByb3RvEgxncnBjLnRlc3RpbmciBwoFRW1w", 
-              "dHliBnByb3RvMw=="));
-        descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
-            new pbr::FileDescriptor[] { },
-            new pbr::GeneratedCodeInfo(null, new pbr::GeneratedCodeInfo[] {
-              new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.Empty), null, null, null, null)
-            }));
-      }
-      #endregion
-
+    #region Descriptor
+    /// <summary>File descriptor for src/proto/grpc/testing/empty.proto</summary>
+    public static pbr::FileDescriptor Descriptor {
+      get { return descriptor; }
     }
+    private static pbr::FileDescriptor descriptor;
+
+    static EmptyReflection() {
+      byte[] descriptorData = global::System.Convert.FromBase64String(
+          string.Concat(
+            "CiJzcmMvcHJvdG8vZ3JwYy90ZXN0aW5nL2VtcHR5LnByb3RvEgxncnBjLnRl",
+            "c3RpbmciBwoFRW1wdHliBnByb3RvMw=="));
+      descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
+          new pbr::FileDescriptor[] { },
+          new pbr::GeneratedCodeInfo(null, new pbr::GeneratedCodeInfo[] {
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.Empty), global::Grpc.Testing.Empty.Parser, null, null, null, null)
+          }));
+    }
+    #endregion
+
   }
   #region Messages
+  /// <summary>
+  ///  An empty message that you can re-use to avoid defining duplicated empty
+  ///  messages in your project. A typical example is to use it as argument or the
+  ///  return value of a service API. For instance:
+  ///
+  ///    service Foo {
+  ///      rpc Bar (grpc.testing.Empty) returns (grpc.testing.Empty) { };
+  ///    };
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class Empty : pb::IMessage<Empty> {
     private static readonly pb::MessageParser<Empty> _parser = new pb::MessageParser<Empty>(() => new Empty());
     public static pb::MessageParser<Empty> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Proto.Empty.Descriptor.MessageTypes[0]; }
+      get { return global::Grpc.Testing.EmptyReflection.Descriptor.MessageTypes[0]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -82,7 +90,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
diff --git a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
index b0d920a..3042331 100644
--- a/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
+++ b/src/csharp/Grpc.IntegrationTesting/Grpc.IntegrationTesting.csproj
@@ -35,12 +35,16 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
     <SignAssembly>True</SignAssembly>
-    <AssemblyOriginatorKeyFile>C:\keys\Grpc.snk</AssemblyOriginatorKeyFile>
+    <AssemblyOriginatorKeyFile>..\keys\Grpc.snk</AssemblyOriginatorKeyFile>
   </PropertyGroup>
   <ItemGroup>
     <Reference Include="CommandLine">
       <HintPath>..\packages\CommandLineParser.1.9.71\lib\net45\CommandLine.dll</HintPath>
     </Reference>
+    <Reference Include="Google.Protobuf, Version=3.0.0.0, Culture=neutral, PublicKeyToken=a7d26565bac4d604, processorArchitecture=MSIL">
+      <SpecificVersion>False</SpecificVersion>
+      <HintPath>..\packages\Google.Protobuf.3.0.0-beta2\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
+    </Reference>
     <Reference Include="Moq">
       <HintPath>..\packages\Moq.4.2.1510.2205\lib\net40\Moq.dll</HintPath>
     </Reference>
@@ -66,9 +70,6 @@
     <Reference Include="Google.Apis.Core">
       <HintPath>..\packages\Google.Apis.Core.1.9.3\lib\portable-net40+sl50+win+wpa81+wp80\Google.Apis.Core.dll</HintPath>
     </Reference>
-    <Reference Include="Google.Protobuf">
-      <HintPath>..\packages\Google.Protobuf.3.0.0-alpha4\lib\portable-net45+netcore45+wpa81+wp8\Google.Protobuf.dll</HintPath>
-    </Reference>
     <Reference Include="Microsoft.Threading.Tasks">
       <HintPath>..\packages\Microsoft.Bcl.Async.1.0.168\lib\net40\Microsoft.Threading.Tasks.dll</HintPath>
     </Reference>
diff --git a/src/csharp/Grpc.IntegrationTesting/Messages.cs b/src/csharp/Grpc.IntegrationTesting/Messages.cs
index 51a56f0..7ca4786 100644
--- a/src/csharp/Grpc.IntegrationTesting/Messages.cs
+++ b/src/csharp/Grpc.IntegrationTesting/Messages.cs
@@ -1,5 +1,5 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: test/proto/messages.proto
+// source: src/proto/grpc/testing/messages.proto
 #pragma warning disable 1591, 0612, 3021
 #region Designer generated code
 
@@ -9,73 +9,93 @@
 using scg = global::System.Collections.Generic;
 namespace Grpc.Testing {
 
+  /// <summary>Holder for reflection information generated from src/proto/grpc/testing/messages.proto</summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-  public static partial class Messages {
+  public static partial class MessagesReflection {
 
     #region Descriptor
+    /// <summary>File descriptor for src/proto/grpc/testing/messages.proto</summary>
     public static pbr::FileDescriptor Descriptor {
       get { return descriptor; }
     }
     private static pbr::FileDescriptor descriptor;
 
-    static Messages() {
+    static MessagesReflection() {
       byte[] descriptorData = global::System.Convert.FromBase64String(
           string.Concat(
-            "Chl0ZXN0L3Byb3RvL21lc3NhZ2VzLnByb3RvEgxncnBjLnRlc3RpbmciQAoH", 
-            "UGF5bG9hZBInCgR0eXBlGAEgASgOMhkuZ3JwYy50ZXN0aW5nLlBheWxvYWRU", 
-            "eXBlEgwKBGJvZHkYAiABKAwiKwoKRWNob1N0YXR1cxIMCgRjb2RlGAEgASgF", 
-            "Eg8KB21lc3NhZ2UYAiABKAkioQIKDVNpbXBsZVJlcXVlc3QSMAoNcmVzcG9u", 
-            "c2VfdHlwZRgBIAEoDjIZLmdycGMudGVzdGluZy5QYXlsb2FkVHlwZRIVCg1y", 
-            "ZXNwb25zZV9zaXplGAIgASgFEiYKB3BheWxvYWQYAyABKAsyFS5ncnBjLnRl", 
-            "c3RpbmcuUGF5bG9hZBIVCg1maWxsX3VzZXJuYW1lGAQgASgIEhgKEGZpbGxf", 
-            "b2F1dGhfc2NvcGUYBSABKAgSOwoUcmVzcG9uc2VfY29tcHJlc3Npb24YBiAB", 
-            "KA4yHS5ncnBjLnRlc3RpbmcuQ29tcHJlc3Npb25UeXBlEjEKD3Jlc3BvbnNl", 
-            "X3N0YXR1cxgHIAEoCzIYLmdycGMudGVzdGluZy5FY2hvU3RhdHVzIl8KDlNp", 
-            "bXBsZVJlc3BvbnNlEiYKB3BheWxvYWQYASABKAsyFS5ncnBjLnRlc3Rpbmcu", 
-            "UGF5bG9hZBIQCgh1c2VybmFtZRgCIAEoCRITCgtvYXV0aF9zY29wZRgDIAEo", 
-            "CSJDChlTdHJlYW1pbmdJbnB1dENhbGxSZXF1ZXN0EiYKB3BheWxvYWQYASAB", 
-            "KAsyFS5ncnBjLnRlc3RpbmcuUGF5bG9hZCI9ChpTdHJlYW1pbmdJbnB1dENh", 
-            "bGxSZXNwb25zZRIfChdhZ2dyZWdhdGVkX3BheWxvYWRfc2l6ZRgBIAEoBSI3", 
-            "ChJSZXNwb25zZVBhcmFtZXRlcnMSDAoEc2l6ZRgBIAEoBRITCgtpbnRlcnZh", 
-            "bF91cxgCIAEoBSKlAgoaU3RyZWFtaW5nT3V0cHV0Q2FsbFJlcXVlc3QSMAoN", 
-            "cmVzcG9uc2VfdHlwZRgBIAEoDjIZLmdycGMudGVzdGluZy5QYXlsb2FkVHlw", 
-            "ZRI9ChNyZXNwb25zZV9wYXJhbWV0ZXJzGAIgAygLMiAuZ3JwYy50ZXN0aW5n", 
-            "LlJlc3BvbnNlUGFyYW1ldGVycxImCgdwYXlsb2FkGAMgASgLMhUuZ3JwYy50", 
-            "ZXN0aW5nLlBheWxvYWQSOwoUcmVzcG9uc2VfY29tcHJlc3Npb24YBiABKA4y", 
-            "HS5ncnBjLnRlc3RpbmcuQ29tcHJlc3Npb25UeXBlEjEKD3Jlc3BvbnNlX3N0", 
-            "YXR1cxgHIAEoCzIYLmdycGMudGVzdGluZy5FY2hvU3RhdHVzIkUKG1N0cmVh", 
-            "bWluZ091dHB1dENhbGxSZXNwb25zZRImCgdwYXlsb2FkGAEgASgLMhUuZ3Jw", 
-            "Yy50ZXN0aW5nLlBheWxvYWQiMwoNUmVjb25uZWN0SW5mbxIOCgZwYXNzZWQY", 
-            "ASABKAgSEgoKYmFja29mZl9tcxgCIAMoBSo/CgtQYXlsb2FkVHlwZRIQCgxD", 
-            "T01QUkVTU0FCTEUQABISCg5VTkNPTVBSRVNTQUJMRRABEgoKBlJBTkRPTRAC", 
-            "KjIKD0NvbXByZXNzaW9uVHlwZRIICgROT05FEAASCAoER1pJUBABEgsKB0RF", 
-            "RkxBVEUQAmIGcHJvdG8z"));
-      descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
+            "CiVzcmMvcHJvdG8vZ3JwYy90ZXN0aW5nL21lc3NhZ2VzLnByb3RvEgxncnBj",
+            "LnRlc3RpbmciQAoHUGF5bG9hZBInCgR0eXBlGAEgASgOMhkuZ3JwYy50ZXN0",
+            "aW5nLlBheWxvYWRUeXBlEgwKBGJvZHkYAiABKAwiKwoKRWNob1N0YXR1cxIM",
+            "CgRjb2RlGAEgASgFEg8KB21lc3NhZ2UYAiABKAkioQIKDVNpbXBsZVJlcXVl",
+            "c3QSMAoNcmVzcG9uc2VfdHlwZRgBIAEoDjIZLmdycGMudGVzdGluZy5QYXls",
+            "b2FkVHlwZRIVCg1yZXNwb25zZV9zaXplGAIgASgFEiYKB3BheWxvYWQYAyAB",
+            "KAsyFS5ncnBjLnRlc3RpbmcuUGF5bG9hZBIVCg1maWxsX3VzZXJuYW1lGAQg",
+            "ASgIEhgKEGZpbGxfb2F1dGhfc2NvcGUYBSABKAgSOwoUcmVzcG9uc2VfY29t",
+            "cHJlc3Npb24YBiABKA4yHS5ncnBjLnRlc3RpbmcuQ29tcHJlc3Npb25UeXBl",
+            "EjEKD3Jlc3BvbnNlX3N0YXR1cxgHIAEoCzIYLmdycGMudGVzdGluZy5FY2hv",
+            "U3RhdHVzIl8KDlNpbXBsZVJlc3BvbnNlEiYKB3BheWxvYWQYASABKAsyFS5n",
+            "cnBjLnRlc3RpbmcuUGF5bG9hZBIQCgh1c2VybmFtZRgCIAEoCRITCgtvYXV0",
+            "aF9zY29wZRgDIAEoCSJDChlTdHJlYW1pbmdJbnB1dENhbGxSZXF1ZXN0EiYK",
+            "B3BheWxvYWQYASABKAsyFS5ncnBjLnRlc3RpbmcuUGF5bG9hZCI9ChpTdHJl",
+            "YW1pbmdJbnB1dENhbGxSZXNwb25zZRIfChdhZ2dyZWdhdGVkX3BheWxvYWRf",
+            "c2l6ZRgBIAEoBSI3ChJSZXNwb25zZVBhcmFtZXRlcnMSDAoEc2l6ZRgBIAEo",
+            "BRITCgtpbnRlcnZhbF91cxgCIAEoBSKlAgoaU3RyZWFtaW5nT3V0cHV0Q2Fs",
+            "bFJlcXVlc3QSMAoNcmVzcG9uc2VfdHlwZRgBIAEoDjIZLmdycGMudGVzdGlu",
+            "Zy5QYXlsb2FkVHlwZRI9ChNyZXNwb25zZV9wYXJhbWV0ZXJzGAIgAygLMiAu",
+            "Z3JwYy50ZXN0aW5nLlJlc3BvbnNlUGFyYW1ldGVycxImCgdwYXlsb2FkGAMg",
+            "ASgLMhUuZ3JwYy50ZXN0aW5nLlBheWxvYWQSOwoUcmVzcG9uc2VfY29tcHJl",
+            "c3Npb24YBiABKA4yHS5ncnBjLnRlc3RpbmcuQ29tcHJlc3Npb25UeXBlEjEK",
+            "D3Jlc3BvbnNlX3N0YXR1cxgHIAEoCzIYLmdycGMudGVzdGluZy5FY2hvU3Rh",
+            "dHVzIkUKG1N0cmVhbWluZ091dHB1dENhbGxSZXNwb25zZRImCgdwYXlsb2Fk",
+            "GAEgASgLMhUuZ3JwYy50ZXN0aW5nLlBheWxvYWQiMwoNUmVjb25uZWN0SW5m",
+            "bxIOCgZwYXNzZWQYASABKAgSEgoKYmFja29mZl9tcxgCIAMoBSo/CgtQYXls",
+            "b2FkVHlwZRIQCgxDT01QUkVTU0FCTEUQABISCg5VTkNPTVBSRVNTQUJMRRAB",
+            "EgoKBlJBTkRPTRACKjIKD0NvbXByZXNzaW9uVHlwZRIICgROT05FEAASCAoE",
+            "R1pJUBABEgsKB0RFRkxBVEUQAmIGcHJvdG8z"));
+      descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
           new pbr::FileDescriptor[] { },
           new pbr::GeneratedCodeInfo(new[] {typeof(global::Grpc.Testing.PayloadType), typeof(global::Grpc.Testing.CompressionType), }, new pbr::GeneratedCodeInfo[] {
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.Payload), new[]{ "Type", "Body" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.EchoStatus), new[]{ "Code", "Message" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.SimpleRequest), new[]{ "ResponseType", "ResponseSize", "Payload", "FillUsername", "FillOauthScope", "ResponseCompression", "ResponseStatus" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.SimpleResponse), new[]{ "Payload", "Username", "OauthScope" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.StreamingInputCallRequest), new[]{ "Payload" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.StreamingInputCallResponse), new[]{ "AggregatedPayloadSize" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ResponseParameters), new[]{ "Size", "IntervalUs" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.StreamingOutputCallRequest), new[]{ "ResponseType", "ResponseParameters", "Payload", "ResponseCompression", "ResponseStatus" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.StreamingOutputCallResponse), new[]{ "Payload" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ReconnectInfo), new[]{ "Passed", "BackoffMs" }, null, null, null)
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.Payload), global::Grpc.Testing.Payload.Parser, new[]{ "Type", "Body" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.EchoStatus), global::Grpc.Testing.EchoStatus.Parser, new[]{ "Code", "Message" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.SimpleRequest), global::Grpc.Testing.SimpleRequest.Parser, new[]{ "ResponseType", "ResponseSize", "Payload", "FillUsername", "FillOauthScope", "ResponseCompression", "ResponseStatus" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.SimpleResponse), global::Grpc.Testing.SimpleResponse.Parser, new[]{ "Payload", "Username", "OauthScope" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.StreamingInputCallRequest), global::Grpc.Testing.StreamingInputCallRequest.Parser, new[]{ "Payload" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.StreamingInputCallResponse), global::Grpc.Testing.StreamingInputCallResponse.Parser, new[]{ "AggregatedPayloadSize" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ResponseParameters), global::Grpc.Testing.ResponseParameters.Parser, new[]{ "Size", "IntervalUs" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.StreamingOutputCallRequest), global::Grpc.Testing.StreamingOutputCallRequest.Parser, new[]{ "ResponseType", "ResponseParameters", "Payload", "ResponseCompression", "ResponseStatus" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.StreamingOutputCallResponse), global::Grpc.Testing.StreamingOutputCallResponse.Parser, new[]{ "Payload" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ReconnectInfo), global::Grpc.Testing.ReconnectInfo.Parser, new[]{ "Passed", "BackoffMs" }, null, null, null)
           }));
     }
     #endregion
 
   }
   #region Enums
+  /// <summary>
+  ///  The type of payload that should be returned.
+  /// </summary>
   public enum PayloadType {
+    /// <summary>
+    ///  Compressable text format.
+    /// </summary>
     COMPRESSABLE = 0,
+    /// <summary>
+    ///  Uncompressable binary format.
+    /// </summary>
     UNCOMPRESSABLE = 1,
+    /// <summary>
+    ///  Randomly chosen from all other formats defined in this enum.
+    /// </summary>
     RANDOM = 2,
   }
 
+  /// <summary>
+  ///  Compression algorithms
+  /// </summary>
   public enum CompressionType {
+    /// <summary>
+    ///  No compression
+    /// </summary>
     NONE = 0,
     GZIP = 1,
     DEFLATE = 2,
@@ -84,13 +104,16 @@
   #endregion
 
   #region Messages
+  /// <summary>
+  ///  A block of data, to simply increase gRPC message size.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class Payload : pb::IMessage<Payload> {
     private static readonly pb::MessageParser<Payload> _parser = new pb::MessageParser<Payload>(() => new Payload());
     public static pb::MessageParser<Payload> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Messages.Descriptor.MessageTypes[0]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[0]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -112,8 +135,12 @@
       return new Payload(this);
     }
 
+    /// <summary>Field number for the "type" field.</summary>
     public const int TypeFieldNumber = 1;
     private global::Grpc.Testing.PayloadType type_ = global::Grpc.Testing.PayloadType.COMPRESSABLE;
+    /// <summary>
+    ///  The type of data in body.
+    /// </summary>
     public global::Grpc.Testing.PayloadType Type {
       get { return type_; }
       set {
@@ -121,8 +148,12 @@
       }
     }
 
+    /// <summary>Field number for the "body" field.</summary>
     public const int BodyFieldNumber = 2;
     private pb::ByteString body_ = pb::ByteString.Empty;
+    /// <summary>
+    ///  Primary contents of payload.
+    /// </summary>
     public pb::ByteString Body {
       get { return body_; }
       set {
@@ -154,7 +185,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -212,13 +243,17 @@
 
   }
 
+  /// <summary>
+  ///  A protobuf representation for grpc status. This is used by test
+  ///  clients to specify a status that the server should attempt to return.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class EchoStatus : pb::IMessage<EchoStatus> {
     private static readonly pb::MessageParser<EchoStatus> _parser = new pb::MessageParser<EchoStatus>(() => new EchoStatus());
     public static pb::MessageParser<EchoStatus> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Messages.Descriptor.MessageTypes[1]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[1]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -240,6 +275,7 @@
       return new EchoStatus(this);
     }
 
+    /// <summary>Field number for the "code" field.</summary>
     public const int CodeFieldNumber = 1;
     private int code_;
     public int Code {
@@ -249,6 +285,7 @@
       }
     }
 
+    /// <summary>Field number for the "message" field.</summary>
     public const int MessageFieldNumber = 2;
     private string message_ = "";
     public string Message {
@@ -282,7 +319,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -340,13 +377,16 @@
 
   }
 
+  /// <summary>
+  ///  Unary request.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class SimpleRequest : pb::IMessage<SimpleRequest> {
     private static readonly pb::MessageParser<SimpleRequest> _parser = new pb::MessageParser<SimpleRequest>(() => new SimpleRequest());
     public static pb::MessageParser<SimpleRequest> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Messages.Descriptor.MessageTypes[2]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[2]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -373,8 +413,13 @@
       return new SimpleRequest(this);
     }
 
+    /// <summary>Field number for the "response_type" field.</summary>
     public const int ResponseTypeFieldNumber = 1;
     private global::Grpc.Testing.PayloadType responseType_ = global::Grpc.Testing.PayloadType.COMPRESSABLE;
+    /// <summary>
+    ///  Desired payload type in the response from the server.
+    ///  If response_type is RANDOM, server randomly chooses one from other formats.
+    /// </summary>
     public global::Grpc.Testing.PayloadType ResponseType {
       get { return responseType_; }
       set {
@@ -382,8 +427,13 @@
       }
     }
 
+    /// <summary>Field number for the "response_size" field.</summary>
     public const int ResponseSizeFieldNumber = 2;
     private int responseSize_;
+    /// <summary>
+    ///  Desired payload size in the response from the server.
+    ///  If response_type is COMPRESSABLE, this denotes the size before compression.
+    /// </summary>
     public int ResponseSize {
       get { return responseSize_; }
       set {
@@ -391,8 +441,12 @@
       }
     }
 
+    /// <summary>Field number for the "payload" field.</summary>
     public const int PayloadFieldNumber = 3;
     private global::Grpc.Testing.Payload payload_;
+    /// <summary>
+    ///  Optional input payload sent along with the request.
+    /// </summary>
     public global::Grpc.Testing.Payload Payload {
       get { return payload_; }
       set {
@@ -400,8 +454,12 @@
       }
     }
 
+    /// <summary>Field number for the "fill_username" field.</summary>
     public const int FillUsernameFieldNumber = 4;
     private bool fillUsername_;
+    /// <summary>
+    ///  Whether SimpleResponse should include username.
+    /// </summary>
     public bool FillUsername {
       get { return fillUsername_; }
       set {
@@ -409,8 +467,12 @@
       }
     }
 
+    /// <summary>Field number for the "fill_oauth_scope" field.</summary>
     public const int FillOauthScopeFieldNumber = 5;
     private bool fillOauthScope_;
+    /// <summary>
+    ///  Whether SimpleResponse should include OAuth scope.
+    /// </summary>
     public bool FillOauthScope {
       get { return fillOauthScope_; }
       set {
@@ -418,8 +480,12 @@
       }
     }
 
+    /// <summary>Field number for the "response_compression" field.</summary>
     public const int ResponseCompressionFieldNumber = 6;
     private global::Grpc.Testing.CompressionType responseCompression_ = global::Grpc.Testing.CompressionType.NONE;
+    /// <summary>
+    ///  Compression algorithm to be used by the server for the response (stream)
+    /// </summary>
     public global::Grpc.Testing.CompressionType ResponseCompression {
       get { return responseCompression_; }
       set {
@@ -427,8 +493,12 @@
       }
     }
 
+    /// <summary>Field number for the "response_status" field.</summary>
     public const int ResponseStatusFieldNumber = 7;
     private global::Grpc.Testing.EchoStatus responseStatus_;
+    /// <summary>
+    ///  Whether server should return a given status
+    /// </summary>
     public global::Grpc.Testing.EchoStatus ResponseStatus {
       get { return responseStatus_; }
       set {
@@ -470,7 +540,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -610,13 +680,16 @@
 
   }
 
+  /// <summary>
+  ///  Unary response, as configured by the request.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class SimpleResponse : pb::IMessage<SimpleResponse> {
     private static readonly pb::MessageParser<SimpleResponse> _parser = new pb::MessageParser<SimpleResponse>(() => new SimpleResponse());
     public static pb::MessageParser<SimpleResponse> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Messages.Descriptor.MessageTypes[3]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[3]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -639,8 +712,12 @@
       return new SimpleResponse(this);
     }
 
+    /// <summary>Field number for the "payload" field.</summary>
     public const int PayloadFieldNumber = 1;
     private global::Grpc.Testing.Payload payload_;
+    /// <summary>
+    ///  Payload to increase message size.
+    /// </summary>
     public global::Grpc.Testing.Payload Payload {
       get { return payload_; }
       set {
@@ -648,8 +725,13 @@
       }
     }
 
+    /// <summary>Field number for the "username" field.</summary>
     public const int UsernameFieldNumber = 2;
     private string username_ = "";
+    /// <summary>
+    ///  The user the request came from, for verifying authentication was
+    ///  successful when the client expected it.
+    /// </summary>
     public string Username {
       get { return username_; }
       set {
@@ -657,8 +739,12 @@
       }
     }
 
+    /// <summary>Field number for the "oauth_scope" field.</summary>
     public const int OauthScopeFieldNumber = 3;
     private string oauthScope_ = "";
+    /// <summary>
+    ///  OAuth scope.
+    /// </summary>
     public string OauthScope {
       get { return oauthScope_; }
       set {
@@ -692,7 +778,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -770,13 +856,16 @@
 
   }
 
+  /// <summary>
+  ///  Client-streaming request.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class StreamingInputCallRequest : pb::IMessage<StreamingInputCallRequest> {
     private static readonly pb::MessageParser<StreamingInputCallRequest> _parser = new pb::MessageParser<StreamingInputCallRequest>(() => new StreamingInputCallRequest());
     public static pb::MessageParser<StreamingInputCallRequest> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Messages.Descriptor.MessageTypes[4]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[4]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -797,8 +886,12 @@
       return new StreamingInputCallRequest(this);
     }
 
+    /// <summary>Field number for the "payload" field.</summary>
     public const int PayloadFieldNumber = 1;
     private global::Grpc.Testing.Payload payload_;
+    /// <summary>
+    ///  Optional input payload sent along with the request.
+    /// </summary>
     public global::Grpc.Testing.Payload Payload {
       get { return payload_; }
       set {
@@ -828,7 +921,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -878,13 +971,16 @@
 
   }
 
+  /// <summary>
+  ///  Client-streaming response.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class StreamingInputCallResponse : pb::IMessage<StreamingInputCallResponse> {
     private static readonly pb::MessageParser<StreamingInputCallResponse> _parser = new pb::MessageParser<StreamingInputCallResponse>(() => new StreamingInputCallResponse());
     public static pb::MessageParser<StreamingInputCallResponse> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Messages.Descriptor.MessageTypes[5]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[5]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -905,8 +1001,12 @@
       return new StreamingInputCallResponse(this);
     }
 
+    /// <summary>Field number for the "aggregated_payload_size" field.</summary>
     public const int AggregatedPayloadSizeFieldNumber = 1;
     private int aggregatedPayloadSize_;
+    /// <summary>
+    ///  Aggregated size of payloads received from the client.
+    /// </summary>
     public int AggregatedPayloadSize {
       get { return aggregatedPayloadSize_; }
       set {
@@ -936,7 +1036,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -980,13 +1080,16 @@
 
   }
 
+  /// <summary>
+  ///  Configuration for a particular response.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class ResponseParameters : pb::IMessage<ResponseParameters> {
     private static readonly pb::MessageParser<ResponseParameters> _parser = new pb::MessageParser<ResponseParameters>(() => new ResponseParameters());
     public static pb::MessageParser<ResponseParameters> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Messages.Descriptor.MessageTypes[6]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[6]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1008,8 +1111,13 @@
       return new ResponseParameters(this);
     }
 
+    /// <summary>Field number for the "size" field.</summary>
     public const int SizeFieldNumber = 1;
     private int size_;
+    /// <summary>
+    ///  Desired payload sizes in responses from the server.
+    ///  If response_type is COMPRESSABLE, this denotes the size before compression.
+    /// </summary>
     public int Size {
       get { return size_; }
       set {
@@ -1017,8 +1125,13 @@
       }
     }
 
+    /// <summary>Field number for the "interval_us" field.</summary>
     public const int IntervalUsFieldNumber = 2;
     private int intervalUs_;
+    /// <summary>
+    ///  Desired interval between consecutive responses in the response stream in
+    ///  microseconds.
+    /// </summary>
     public int IntervalUs {
       get { return intervalUs_; }
       set {
@@ -1050,7 +1163,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -1108,13 +1221,16 @@
 
   }
 
+  /// <summary>
+  ///  Server-streaming request.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class StreamingOutputCallRequest : pb::IMessage<StreamingOutputCallRequest> {
     private static readonly pb::MessageParser<StreamingOutputCallRequest> _parser = new pb::MessageParser<StreamingOutputCallRequest>(() => new StreamingOutputCallRequest());
     public static pb::MessageParser<StreamingOutputCallRequest> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Messages.Descriptor.MessageTypes[7]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[7]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1139,8 +1255,15 @@
       return new StreamingOutputCallRequest(this);
     }
 
+    /// <summary>Field number for the "response_type" field.</summary>
     public const int ResponseTypeFieldNumber = 1;
     private global::Grpc.Testing.PayloadType responseType_ = global::Grpc.Testing.PayloadType.COMPRESSABLE;
+    /// <summary>
+    ///  Desired payload type in the response from the server.
+    ///  If response_type is RANDOM, the payload from each response in the stream
+    ///  might be of different types. This is to simulate a mixed type of payload
+    ///  stream.
+    /// </summary>
     public global::Grpc.Testing.PayloadType ResponseType {
       get { return responseType_; }
       set {
@@ -1148,16 +1271,24 @@
       }
     }
 
+    /// <summary>Field number for the "response_parameters" field.</summary>
     public const int ResponseParametersFieldNumber = 2;
     private static readonly pb::FieldCodec<global::Grpc.Testing.ResponseParameters> _repeated_responseParameters_codec
         = pb::FieldCodec.ForMessage(18, global::Grpc.Testing.ResponseParameters.Parser);
     private readonly pbc::RepeatedField<global::Grpc.Testing.ResponseParameters> responseParameters_ = new pbc::RepeatedField<global::Grpc.Testing.ResponseParameters>();
+    /// <summary>
+    ///  Configuration for each expected response message.
+    /// </summary>
     public pbc::RepeatedField<global::Grpc.Testing.ResponseParameters> ResponseParameters {
       get { return responseParameters_; }
     }
 
+    /// <summary>Field number for the "payload" field.</summary>
     public const int PayloadFieldNumber = 3;
     private global::Grpc.Testing.Payload payload_;
+    /// <summary>
+    ///  Optional input payload sent along with the request.
+    /// </summary>
     public global::Grpc.Testing.Payload Payload {
       get { return payload_; }
       set {
@@ -1165,8 +1296,12 @@
       }
     }
 
+    /// <summary>Field number for the "response_compression" field.</summary>
     public const int ResponseCompressionFieldNumber = 6;
     private global::Grpc.Testing.CompressionType responseCompression_ = global::Grpc.Testing.CompressionType.NONE;
+    /// <summary>
+    ///  Compression algorithm to be used by the server for the response (stream)
+    /// </summary>
     public global::Grpc.Testing.CompressionType ResponseCompression {
       get { return responseCompression_; }
       set {
@@ -1174,8 +1309,12 @@
       }
     }
 
+    /// <summary>Field number for the "response_status" field.</summary>
     public const int ResponseStatusFieldNumber = 7;
     private global::Grpc.Testing.EchoStatus responseStatus_;
+    /// <summary>
+    ///  Whether server should return a given status
+    /// </summary>
     public global::Grpc.Testing.EchoStatus ResponseStatus {
       get { return responseStatus_; }
       set {
@@ -1213,7 +1352,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -1318,13 +1457,16 @@
 
   }
 
+  /// <summary>
+  ///  Server-streaming response, as configured by the request and parameters.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class StreamingOutputCallResponse : pb::IMessage<StreamingOutputCallResponse> {
     private static readonly pb::MessageParser<StreamingOutputCallResponse> _parser = new pb::MessageParser<StreamingOutputCallResponse>(() => new StreamingOutputCallResponse());
     public static pb::MessageParser<StreamingOutputCallResponse> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Messages.Descriptor.MessageTypes[8]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[8]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1345,8 +1487,12 @@
       return new StreamingOutputCallResponse(this);
     }
 
+    /// <summary>Field number for the "payload" field.</summary>
     public const int PayloadFieldNumber = 1;
     private global::Grpc.Testing.Payload payload_;
+    /// <summary>
+    ///  Payload to increase response size.
+    /// </summary>
     public global::Grpc.Testing.Payload Payload {
       get { return payload_; }
       set {
@@ -1376,7 +1522,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -1426,13 +1572,18 @@
 
   }
 
+  /// <summary>
+  ///  For reconnect interop test only.
+  ///  Server tells client whether its reconnects are following the spec and the
+  ///  reconnect backoffs it saw.
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class ReconnectInfo : pb::IMessage<ReconnectInfo> {
     private static readonly pb::MessageParser<ReconnectInfo> _parser = new pb::MessageParser<ReconnectInfo>(() => new ReconnectInfo());
     public static pb::MessageParser<ReconnectInfo> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Messages.Descriptor.MessageTypes[9]; }
+      get { return global::Grpc.Testing.MessagesReflection.Descriptor.MessageTypes[9]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -1454,6 +1605,7 @@
       return new ReconnectInfo(this);
     }
 
+    /// <summary>Field number for the "passed" field.</summary>
     public const int PassedFieldNumber = 1;
     private bool passed_;
     public bool Passed {
@@ -1463,6 +1615,7 @@
       }
     }
 
+    /// <summary>Field number for the "backoff_ms" field.</summary>
     public const int BackoffMsFieldNumber = 2;
     private static readonly pb::FieldCodec<int> _repeated_backoffMs_codec
         = pb::FieldCodec.ForInt32(18);
@@ -1495,7 +1648,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
diff --git a/src/csharp/Grpc.IntegrationTesting/Payloads.cs b/src/csharp/Grpc.IntegrationTesting/Payloads.cs
index a37dd9a..663f625 100644
--- a/src/csharp/Grpc.IntegrationTesting/Payloads.cs
+++ b/src/csharp/Grpc.IntegrationTesting/Payloads.cs
@@ -1,5 +1,5 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: test/proto/benchmarks/payloads.proto
+// source: src/proto/grpc/testing/payloads.proto
 #pragma warning disable 1591, 0612, 3021
 #region Designer generated code
 
@@ -9,34 +9,36 @@
 using scg = global::System.Collections.Generic;
 namespace Grpc.Testing {
 
+  /// <summary>Holder for reflection information generated from src/proto/grpc/testing/payloads.proto</summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-  public static partial class Payloads {
+  public static partial class PayloadsReflection {
 
     #region Descriptor
+    /// <summary>File descriptor for src/proto/grpc/testing/payloads.proto</summary>
     public static pbr::FileDescriptor Descriptor {
       get { return descriptor; }
     }
     private static pbr::FileDescriptor descriptor;
 
-    static Payloads() {
+    static PayloadsReflection() {
       byte[] descriptorData = global::System.Convert.FromBase64String(
           string.Concat(
-            "CiR0ZXN0L3Byb3RvL2JlbmNobWFya3MvcGF5bG9hZHMucHJvdG8SDGdycGMu", 
-            "dGVzdGluZyI3ChBCeXRlQnVmZmVyUGFyYW1zEhAKCHJlcV9zaXplGAEgASgF", 
-            "EhEKCXJlc3Bfc2l6ZRgCIAEoBSI4ChFTaW1wbGVQcm90b1BhcmFtcxIQCghy", 
-            "ZXFfc2l6ZRgBIAEoBRIRCglyZXNwX3NpemUYAiABKAUiFAoSQ29tcGxleFBy", 
-            "b3RvUGFyYW1zIsoBCg1QYXlsb2FkQ29uZmlnEjgKDmJ5dGVidWZfcGFyYW1z", 
-            "GAEgASgLMh4uZ3JwYy50ZXN0aW5nLkJ5dGVCdWZmZXJQYXJhbXNIABI4Cg1z", 
-            "aW1wbGVfcGFyYW1zGAIgASgLMh8uZ3JwYy50ZXN0aW5nLlNpbXBsZVByb3Rv", 
-            "UGFyYW1zSAASOgoOY29tcGxleF9wYXJhbXMYAyABKAsyIC5ncnBjLnRlc3Rp", 
-            "bmcuQ29tcGxleFByb3RvUGFyYW1zSABCCQoHcGF5bG9hZGIGcHJvdG8z"));
-      descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
+            "CiVzcmMvcHJvdG8vZ3JwYy90ZXN0aW5nL3BheWxvYWRzLnByb3RvEgxncnBj",
+            "LnRlc3RpbmciNwoQQnl0ZUJ1ZmZlclBhcmFtcxIQCghyZXFfc2l6ZRgBIAEo",
+            "BRIRCglyZXNwX3NpemUYAiABKAUiOAoRU2ltcGxlUHJvdG9QYXJhbXMSEAoI",
+            "cmVxX3NpemUYASABKAUSEQoJcmVzcF9zaXplGAIgASgFIhQKEkNvbXBsZXhQ",
+            "cm90b1BhcmFtcyLKAQoNUGF5bG9hZENvbmZpZxI4Cg5ieXRlYnVmX3BhcmFt",
+            "cxgBIAEoCzIeLmdycGMudGVzdGluZy5CeXRlQnVmZmVyUGFyYW1zSAASOAoN",
+            "c2ltcGxlX3BhcmFtcxgCIAEoCzIfLmdycGMudGVzdGluZy5TaW1wbGVQcm90",
+            "b1BhcmFtc0gAEjoKDmNvbXBsZXhfcGFyYW1zGAMgASgLMiAuZ3JwYy50ZXN0",
+            "aW5nLkNvbXBsZXhQcm90b1BhcmFtc0gAQgkKB3BheWxvYWRiBnByb3RvMw=="));
+      descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
           new pbr::FileDescriptor[] { },
           new pbr::GeneratedCodeInfo(null, new pbr::GeneratedCodeInfo[] {
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ByteBufferParams), new[]{ "ReqSize", "RespSize" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.SimpleProtoParams), new[]{ "ReqSize", "RespSize" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ComplexProtoParams), null, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.PayloadConfig), new[]{ "BytebufParams", "SimpleParams", "ComplexParams" }, new[]{ "Payload" }, null, null)
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ByteBufferParams), global::Grpc.Testing.ByteBufferParams.Parser, new[]{ "ReqSize", "RespSize" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.SimpleProtoParams), global::Grpc.Testing.SimpleProtoParams.Parser, new[]{ "ReqSize", "RespSize" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ComplexProtoParams), global::Grpc.Testing.ComplexProtoParams.Parser, null, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.PayloadConfig), global::Grpc.Testing.PayloadConfig.Parser, new[]{ "BytebufParams", "SimpleParams", "ComplexParams" }, new[]{ "Payload" }, null, null)
           }));
     }
     #endregion
@@ -49,7 +51,7 @@
     public static pb::MessageParser<ByteBufferParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Payloads.Descriptor.MessageTypes[0]; }
+      get { return global::Grpc.Testing.PayloadsReflection.Descriptor.MessageTypes[0]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -71,6 +73,7 @@
       return new ByteBufferParams(this);
     }
 
+    /// <summary>Field number for the "req_size" field.</summary>
     public const int ReqSizeFieldNumber = 1;
     private int reqSize_;
     public int ReqSize {
@@ -80,6 +83,7 @@
       }
     }
 
+    /// <summary>Field number for the "resp_size" field.</summary>
     public const int RespSizeFieldNumber = 2;
     private int respSize_;
     public int RespSize {
@@ -113,7 +117,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -177,7 +181,7 @@
     public static pb::MessageParser<SimpleProtoParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Payloads.Descriptor.MessageTypes[1]; }
+      get { return global::Grpc.Testing.PayloadsReflection.Descriptor.MessageTypes[1]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -199,6 +203,7 @@
       return new SimpleProtoParams(this);
     }
 
+    /// <summary>Field number for the "req_size" field.</summary>
     public const int ReqSizeFieldNumber = 1;
     private int reqSize_;
     public int ReqSize {
@@ -208,6 +213,7 @@
       }
     }
 
+    /// <summary>Field number for the "resp_size" field.</summary>
     public const int RespSizeFieldNumber = 2;
     private int respSize_;
     public int RespSize {
@@ -241,7 +247,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -299,13 +305,17 @@
 
   }
 
+  /// <summary>
+  ///  TODO (vpai): Fill this in once the details of complex, representative
+  ///               protos are decided
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class ComplexProtoParams : pb::IMessage<ComplexProtoParams> {
     private static readonly pb::MessageParser<ComplexProtoParams> _parser = new pb::MessageParser<ComplexProtoParams>(() => new ComplexProtoParams());
     public static pb::MessageParser<ComplexProtoParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Payloads.Descriptor.MessageTypes[2]; }
+      get { return global::Grpc.Testing.PayloadsReflection.Descriptor.MessageTypes[2]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -345,7 +355,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -381,7 +391,7 @@
     public static pb::MessageParser<PayloadConfig> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Payloads.Descriptor.MessageTypes[3]; }
+      get { return global::Grpc.Testing.PayloadsReflection.Descriptor.MessageTypes[3]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -413,6 +423,7 @@
       return new PayloadConfig(this);
     }
 
+    /// <summary>Field number for the "bytebuf_params" field.</summary>
     public const int BytebufParamsFieldNumber = 1;
     public global::Grpc.Testing.ByteBufferParams BytebufParams {
       get { return payloadCase_ == PayloadOneofCase.BytebufParams ? (global::Grpc.Testing.ByteBufferParams) payload_ : null; }
@@ -422,6 +433,7 @@
       }
     }
 
+    /// <summary>Field number for the "simple_params" field.</summary>
     public const int SimpleParamsFieldNumber = 2;
     public global::Grpc.Testing.SimpleProtoParams SimpleParams {
       get { return payloadCase_ == PayloadOneofCase.SimpleParams ? (global::Grpc.Testing.SimpleProtoParams) payload_ : null; }
@@ -431,6 +443,7 @@
       }
     }
 
+    /// <summary>Field number for the "complex_params" field.</summary>
     public const int ComplexParamsFieldNumber = 3;
     public global::Grpc.Testing.ComplexProtoParams ComplexParams {
       get { return payloadCase_ == PayloadOneofCase.ComplexParams ? (global::Grpc.Testing.ComplexProtoParams) payload_ : null; }
@@ -441,6 +454,7 @@
     }
 
     private object payload_;
+    /// <summary>Enum of possible cases for the "payload" oneof.</summary>
     public enum PayloadOneofCase {
       None = 0,
       BytebufParams = 1,
@@ -471,6 +485,7 @@
       if (!object.Equals(BytebufParams, other.BytebufParams)) return false;
       if (!object.Equals(SimpleParams, other.SimpleParams)) return false;
       if (!object.Equals(ComplexParams, other.ComplexParams)) return false;
+      if (PayloadCase != other.PayloadCase) return false;
       return true;
     }
 
@@ -479,11 +494,12 @@
       if (payloadCase_ == PayloadOneofCase.BytebufParams) hash ^= BytebufParams.GetHashCode();
       if (payloadCase_ == PayloadOneofCase.SimpleParams) hash ^= SimpleParams.GetHashCode();
       if (payloadCase_ == PayloadOneofCase.ComplexParams) hash ^= ComplexParams.GetHashCode();
+      hash ^= (int) payloadCase_;
       return hash;
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
diff --git a/src/csharp/Grpc.IntegrationTesting/Services.cs b/src/csharp/Grpc.IntegrationTesting/Services.cs
index b648da6..04a092c 100644
--- a/src/csharp/Grpc.IntegrationTesting/Services.cs
+++ b/src/csharp/Grpc.IntegrationTesting/Services.cs
@@ -1,5 +1,5 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: test/proto/benchmarks/services.proto
+// source: src/proto/grpc/testing/services.proto
 #pragma warning disable 1591, 0612, 3021
 #region Designer generated code
 
@@ -9,31 +9,33 @@
 using scg = global::System.Collections.Generic;
 namespace Grpc.Testing {
 
+  /// <summary>Holder for reflection information generated from src/proto/grpc/testing/services.proto</summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-  public static partial class Services {
+  public static partial class ServicesReflection {
 
     #region Descriptor
+    /// <summary>File descriptor for src/proto/grpc/testing/services.proto</summary>
     public static pbr::FileDescriptor Descriptor {
       get { return descriptor; }
     }
     private static pbr::FileDescriptor descriptor;
 
-    static Services() {
+    static ServicesReflection() {
       byte[] descriptorData = global::System.Convert.FromBase64String(
           string.Concat(
-            "CiR0ZXN0L3Byb3RvL2JlbmNobWFya3Mvc2VydmljZXMucHJvdG8SDGdycGMu", 
-            "dGVzdGluZxoZdGVzdC9wcm90by9tZXNzYWdlcy5wcm90bxojdGVzdC9wcm90", 
-            "by9iZW5jaG1hcmtzL2NvbnRyb2wucHJvdG8yqgEKEEJlbmNobWFya1NlcnZp", 
-            "Y2USRgoJVW5hcnlDYWxsEhsuZ3JwYy50ZXN0aW5nLlNpbXBsZVJlcXVlc3Qa", 
-            "HC5ncnBjLnRlc3RpbmcuU2ltcGxlUmVzcG9uc2USTgoNU3RyZWFtaW5nQ2Fs", 
-            "bBIbLmdycGMudGVzdGluZy5TaW1wbGVSZXF1ZXN0GhwuZ3JwYy50ZXN0aW5n", 
-            "LlNpbXBsZVJlc3BvbnNlKAEwATKdAQoNV29ya2VyU2VydmljZRJFCglSdW5T", 
-            "ZXJ2ZXISGC5ncnBjLnRlc3RpbmcuU2VydmVyQXJncxoaLmdycGMudGVzdGlu", 
-            "Zy5TZXJ2ZXJTdGF0dXMoATABEkUKCVJ1bkNsaWVudBIYLmdycGMudGVzdGlu", 
-            "Zy5DbGllbnRBcmdzGhouZ3JwYy50ZXN0aW5nLkNsaWVudFN0YXR1cygBMAFi", 
-            "BnByb3RvMw=="));
-      descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
-          new pbr::FileDescriptor[] { global::Grpc.Testing.Messages.Descriptor, global::Grpc.Testing.Control.Descriptor, },
+            "CiVzcmMvcHJvdG8vZ3JwYy90ZXN0aW5nL3NlcnZpY2VzLnByb3RvEgxncnBj",
+            "LnRlc3RpbmcaJXNyYy9wcm90by9ncnBjL3Rlc3RpbmcvbWVzc2FnZXMucHJv",
+            "dG8aJHNyYy9wcm90by9ncnBjL3Rlc3RpbmcvY29udHJvbC5wcm90bzKqAQoQ",
+            "QmVuY2htYXJrU2VydmljZRJGCglVbmFyeUNhbGwSGy5ncnBjLnRlc3Rpbmcu",
+            "U2ltcGxlUmVxdWVzdBocLmdycGMudGVzdGluZy5TaW1wbGVSZXNwb25zZRJO",
+            "Cg1TdHJlYW1pbmdDYWxsEhsuZ3JwYy50ZXN0aW5nLlNpbXBsZVJlcXVlc3Qa",
+            "HC5ncnBjLnRlc3RpbmcuU2ltcGxlUmVzcG9uc2UoATABMp0BCg1Xb3JrZXJT",
+            "ZXJ2aWNlEkUKCVJ1blNlcnZlchIYLmdycGMudGVzdGluZy5TZXJ2ZXJBcmdz",
+            "GhouZ3JwYy50ZXN0aW5nLlNlcnZlclN0YXR1cygBMAESRQoJUnVuQ2xpZW50",
+            "EhguZ3JwYy50ZXN0aW5nLkNsaWVudEFyZ3MaGi5ncnBjLnRlc3RpbmcuQ2xp",
+            "ZW50U3RhdHVzKAEwAWIGcHJvdG8z"));
+      descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
+          new pbr::FileDescriptor[] { global::Grpc.Testing.MessagesReflection.Descriptor, global::Grpc.Testing.ControlReflection.Descriptor, },
           new pbr::GeneratedCodeInfo(null, null));
     }
     #endregion
diff --git a/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs b/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs
index ce388c6..dd30afb 100644
--- a/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs
+++ b/src/csharp/Grpc.IntegrationTesting/ServicesGrpc.cs
@@ -1,5 +1,5 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: test/proto/benchmarks/services.proto
+// source: src/proto/grpc/testing/services.proto
 #region Designer generated code
 
 using System;
@@ -32,7 +32,7 @@
     // service descriptor
     public static global::Google.Protobuf.Reflection.ServiceDescriptor Descriptor
     {
-      get { return global::Grpc.Testing.Services.Descriptor.Services[0]; }
+      get { return global::Grpc.Testing.ServicesReflection.Descriptor.Services[0]; }
     }
 
     // client interface
@@ -132,7 +132,7 @@
     // service descriptor
     public static global::Google.Protobuf.Reflection.ServiceDescriptor Descriptor
     {
-      get { return global::Grpc.Testing.Services.Descriptor.Services[1]; }
+      get { return global::Grpc.Testing.ServicesReflection.Descriptor.Services[1]; }
     }
 
     // client interface
diff --git a/src/csharp/Grpc.IntegrationTesting/Stats.cs b/src/csharp/Grpc.IntegrationTesting/Stats.cs
index 4ae66ba..39c00ea 100644
--- a/src/csharp/Grpc.IntegrationTesting/Stats.cs
+++ b/src/csharp/Grpc.IntegrationTesting/Stats.cs
@@ -1,5 +1,5 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: test/proto/benchmarks/stats.proto
+// source: src/proto/grpc/testing/stats.proto
 #pragma warning disable 1591, 0612, 3021
 #region Designer generated code
 
@@ -9,35 +9,37 @@
 using scg = global::System.Collections.Generic;
 namespace Grpc.Testing {
 
+  /// <summary>Holder for reflection information generated from src/proto/grpc/testing/stats.proto</summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-  public static partial class Stats {
+  public static partial class StatsReflection {
 
     #region Descriptor
+    /// <summary>File descriptor for src/proto/grpc/testing/stats.proto</summary>
     public static pbr::FileDescriptor Descriptor {
       get { return descriptor; }
     }
     private static pbr::FileDescriptor descriptor;
 
-    static Stats() {
+    static StatsReflection() {
       byte[] descriptorData = global::System.Convert.FromBase64String(
           string.Concat(
-            "CiF0ZXN0L3Byb3RvL2JlbmNobWFya3Mvc3RhdHMucHJvdG8SDGdycGMudGVz", 
-            "dGluZyJLCgtTZXJ2ZXJTdGF0cxIUCgx0aW1lX2VsYXBzZWQYASABKAESEQoJ", 
-            "dGltZV91c2VyGAIgASgBEhMKC3RpbWVfc3lzdGVtGAMgASgBIjsKD0hpc3Rv", 
-            "Z3JhbVBhcmFtcxISCgpyZXNvbHV0aW9uGAEgASgBEhQKDG1heF9wb3NzaWJs", 
-            "ZRgCIAEoASJ3Cg1IaXN0b2dyYW1EYXRhEg4KBmJ1Y2tldBgBIAMoDRIQCght", 
-            "aW5fc2VlbhgCIAEoARIQCghtYXhfc2VlbhgDIAEoARILCgNzdW0YBCABKAES", 
-            "FgoOc3VtX29mX3NxdWFyZXMYBSABKAESDQoFY291bnQYBiABKAEiewoLQ2xp", 
-            "ZW50U3RhdHMSLgoJbGF0ZW5jaWVzGAEgASgLMhsuZ3JwYy50ZXN0aW5nLkhp", 
-            "c3RvZ3JhbURhdGESFAoMdGltZV9lbGFwc2VkGAIgASgBEhEKCXRpbWVfdXNl", 
-            "chgDIAEoARITCgt0aW1lX3N5c3RlbRgEIAEoAWIGcHJvdG8z"));
-      descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
+            "CiJzcmMvcHJvdG8vZ3JwYy90ZXN0aW5nL3N0YXRzLnByb3RvEgxncnBjLnRl",
+            "c3RpbmciSwoLU2VydmVyU3RhdHMSFAoMdGltZV9lbGFwc2VkGAEgASgBEhEK",
+            "CXRpbWVfdXNlchgCIAEoARITCgt0aW1lX3N5c3RlbRgDIAEoASI7Cg9IaXN0",
+            "b2dyYW1QYXJhbXMSEgoKcmVzb2x1dGlvbhgBIAEoARIUCgxtYXhfcG9zc2li",
+            "bGUYAiABKAEidwoNSGlzdG9ncmFtRGF0YRIOCgZidWNrZXQYASADKA0SEAoI",
+            "bWluX3NlZW4YAiABKAESEAoIbWF4X3NlZW4YAyABKAESCwoDc3VtGAQgASgB",
+            "EhYKDnN1bV9vZl9zcXVhcmVzGAUgASgBEg0KBWNvdW50GAYgASgBInsKC0Ns",
+            "aWVudFN0YXRzEi4KCWxhdGVuY2llcxgBIAEoCzIbLmdycGMudGVzdGluZy5I",
+            "aXN0b2dyYW1EYXRhEhQKDHRpbWVfZWxhcHNlZBgCIAEoARIRCgl0aW1lX3Vz",
+            "ZXIYAyABKAESEwoLdGltZV9zeXN0ZW0YBCABKAFiBnByb3RvMw=="));
+      descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
           new pbr::FileDescriptor[] { },
           new pbr::GeneratedCodeInfo(null, new pbr::GeneratedCodeInfo[] {
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ServerStats), new[]{ "TimeElapsed", "TimeUser", "TimeSystem" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.HistogramParams), new[]{ "Resolution", "MaxPossible" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.HistogramData), new[]{ "Bucket", "MinSeen", "MaxSeen", "Sum", "SumOfSquares", "Count" }, null, null, null),
-            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ClientStats), new[]{ "Latencies", "TimeElapsed", "TimeUser", "TimeSystem" }, null, null, null)
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ServerStats), global::Grpc.Testing.ServerStats.Parser, new[]{ "TimeElapsed", "TimeUser", "TimeSystem" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.HistogramParams), global::Grpc.Testing.HistogramParams.Parser, new[]{ "Resolution", "MaxPossible" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.HistogramData), global::Grpc.Testing.HistogramData.Parser, new[]{ "Bucket", "MinSeen", "MaxSeen", "Sum", "SumOfSquares", "Count" }, null, null, null),
+            new pbr::GeneratedCodeInfo(typeof(global::Grpc.Testing.ClientStats), global::Grpc.Testing.ClientStats.Parser, new[]{ "Latencies", "TimeElapsed", "TimeUser", "TimeSystem" }, null, null, null)
           }));
     }
     #endregion
@@ -50,7 +52,7 @@
     public static pb::MessageParser<ServerStats> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Stats.Descriptor.MessageTypes[0]; }
+      get { return global::Grpc.Testing.StatsReflection.Descriptor.MessageTypes[0]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -73,8 +75,12 @@
       return new ServerStats(this);
     }
 
+    /// <summary>Field number for the "time_elapsed" field.</summary>
     public const int TimeElapsedFieldNumber = 1;
     private double timeElapsed_;
+    /// <summary>
+    ///  wall clock time change in seconds since last reset
+    /// </summary>
     public double TimeElapsed {
       get { return timeElapsed_; }
       set {
@@ -82,8 +88,12 @@
       }
     }
 
+    /// <summary>Field number for the "time_user" field.</summary>
     public const int TimeUserFieldNumber = 2;
     private double timeUser_;
+    /// <summary>
+    ///  change in user time (in seconds) used by the server since last reset
+    /// </summary>
     public double TimeUser {
       get { return timeUser_; }
       set {
@@ -91,8 +101,13 @@
       }
     }
 
+    /// <summary>Field number for the "time_system" field.</summary>
     public const int TimeSystemFieldNumber = 3;
     private double timeSystem_;
+    /// <summary>
+    ///  change in server time (in seconds) used by the server process and all
+    ///  threads since last reset
+    /// </summary>
     public double TimeSystem {
       get { return timeSystem_; }
       set {
@@ -126,7 +141,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -198,13 +213,16 @@
 
   }
 
+  /// <summary>
+  ///  Histogram params based on grpc/support/histogram.c
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class HistogramParams : pb::IMessage<HistogramParams> {
     private static readonly pb::MessageParser<HistogramParams> _parser = new pb::MessageParser<HistogramParams>(() => new HistogramParams());
     public static pb::MessageParser<HistogramParams> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Stats.Descriptor.MessageTypes[1]; }
+      get { return global::Grpc.Testing.StatsReflection.Descriptor.MessageTypes[1]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -226,8 +244,12 @@
       return new HistogramParams(this);
     }
 
+    /// <summary>Field number for the "resolution" field.</summary>
     public const int ResolutionFieldNumber = 1;
     private double resolution_;
+    /// <summary>
+    ///  first bucket is [0, 1 + resolution)
+    /// </summary>
     public double Resolution {
       get { return resolution_; }
       set {
@@ -235,8 +257,12 @@
       }
     }
 
+    /// <summary>Field number for the "max_possible" field.</summary>
     public const int MaxPossibleFieldNumber = 2;
     private double maxPossible_;
+    /// <summary>
+    ///  use enough buckets to allow this value
+    /// </summary>
     public double MaxPossible {
       get { return maxPossible_; }
       set {
@@ -268,7 +294,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -326,13 +352,16 @@
 
   }
 
+  /// <summary>
+  ///  Histogram data based on grpc/support/histogram.c
+  /// </summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
   public sealed partial class HistogramData : pb::IMessage<HistogramData> {
     private static readonly pb::MessageParser<HistogramData> _parser = new pb::MessageParser<HistogramData>(() => new HistogramData());
     public static pb::MessageParser<HistogramData> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Stats.Descriptor.MessageTypes[2]; }
+      get { return global::Grpc.Testing.StatsReflection.Descriptor.MessageTypes[2]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -358,6 +387,7 @@
       return new HistogramData(this);
     }
 
+    /// <summary>Field number for the "bucket" field.</summary>
     public const int BucketFieldNumber = 1;
     private static readonly pb::FieldCodec<uint> _repeated_bucket_codec
         = pb::FieldCodec.ForUInt32(10);
@@ -366,6 +396,7 @@
       get { return bucket_; }
     }
 
+    /// <summary>Field number for the "min_seen" field.</summary>
     public const int MinSeenFieldNumber = 2;
     private double minSeen_;
     public double MinSeen {
@@ -375,6 +406,7 @@
       }
     }
 
+    /// <summary>Field number for the "max_seen" field.</summary>
     public const int MaxSeenFieldNumber = 3;
     private double maxSeen_;
     public double MaxSeen {
@@ -384,6 +416,7 @@
       }
     }
 
+    /// <summary>Field number for the "sum" field.</summary>
     public const int SumFieldNumber = 4;
     private double sum_;
     public double Sum {
@@ -393,6 +426,7 @@
       }
     }
 
+    /// <summary>Field number for the "sum_of_squares" field.</summary>
     public const int SumOfSquaresFieldNumber = 5;
     private double sumOfSquares_;
     public double SumOfSquares {
@@ -402,6 +436,7 @@
       }
     }
 
+    /// <summary>Field number for the "count" field.</summary>
     public const int CountFieldNumber = 6;
     private double count_;
     public double Count {
@@ -443,7 +478,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
@@ -557,7 +592,7 @@
     public static pb::MessageParser<ClientStats> Parser { get { return _parser; } }
 
     public static pbr::MessageDescriptor Descriptor {
-      get { return global::Grpc.Testing.Stats.Descriptor.MessageTypes[3]; }
+      get { return global::Grpc.Testing.StatsReflection.Descriptor.MessageTypes[3]; }
     }
 
     pbr::MessageDescriptor pb::IMessage.Descriptor {
@@ -581,8 +616,12 @@
       return new ClientStats(this);
     }
 
+    /// <summary>Field number for the "latencies" field.</summary>
     public const int LatenciesFieldNumber = 1;
     private global::Grpc.Testing.HistogramData latencies_;
+    /// <summary>
+    ///  Latency histogram. Data points are in nanoseconds.
+    /// </summary>
     public global::Grpc.Testing.HistogramData Latencies {
       get { return latencies_; }
       set {
@@ -590,8 +629,12 @@
       }
     }
 
+    /// <summary>Field number for the "time_elapsed" field.</summary>
     public const int TimeElapsedFieldNumber = 2;
     private double timeElapsed_;
+    /// <summary>
+    ///  See ServerStats for details.
+    /// </summary>
     public double TimeElapsed {
       get { return timeElapsed_; }
       set {
@@ -599,6 +642,7 @@
       }
     }
 
+    /// <summary>Field number for the "time_user" field.</summary>
     public const int TimeUserFieldNumber = 3;
     private double timeUser_;
     public double TimeUser {
@@ -608,6 +652,7 @@
       }
     }
 
+    /// <summary>Field number for the "time_system" field.</summary>
     public const int TimeSystemFieldNumber = 4;
     private double timeSystem_;
     public double TimeSystem {
@@ -645,7 +690,7 @@
     }
 
     public override string ToString() {
-      return pb::JsonFormatter.Default.Format(this);
+      return pb::JsonFormatter.ToDiagnosticString(this);
     }
 
     public void WriteTo(pb::CodedOutputStream output) {
diff --git a/src/csharp/Grpc.IntegrationTesting/Test.cs b/src/csharp/Grpc.IntegrationTesting/Test.cs
index cf47707..91e0a1e 100644
--- a/src/csharp/Grpc.IntegrationTesting/Test.cs
+++ b/src/csharp/Grpc.IntegrationTesting/Test.cs
@@ -1,5 +1,5 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: test/proto/test.proto
+// source: src/proto/grpc/testing/test.proto
 #pragma warning disable 1591, 0612, 3021
 #region Designer generated code
 
@@ -9,40 +9,43 @@
 using scg = global::System.Collections.Generic;
 namespace Grpc.Testing {
 
+  /// <summary>Holder for reflection information generated from src/proto/grpc/testing/test.proto</summary>
   [global::System.Diagnostics.DebuggerNonUserCodeAttribute()]
-  public static partial class Test {
+  public static partial class TestReflection {
 
     #region Descriptor
+    /// <summary>File descriptor for src/proto/grpc/testing/test.proto</summary>
     public static pbr::FileDescriptor Descriptor {
       get { return descriptor; }
     }
     private static pbr::FileDescriptor descriptor;
 
-    static Test() {
+    static TestReflection() {
       byte[] descriptorData = global::System.Convert.FromBase64String(
           string.Concat(
-            "ChV0ZXN0L3Byb3RvL3Rlc3QucHJvdG8SDGdycGMudGVzdGluZxoWdGVzdC9w", 
-            "cm90by9lbXB0eS5wcm90bxoZdGVzdC9wcm90by9tZXNzYWdlcy5wcm90bzK7", 
-            "BAoLVGVzdFNlcnZpY2USNQoJRW1wdHlDYWxsEhMuZ3JwYy50ZXN0aW5nLkVt", 
-            "cHR5GhMuZ3JwYy50ZXN0aW5nLkVtcHR5EkYKCVVuYXJ5Q2FsbBIbLmdycGMu", 
-            "dGVzdGluZy5TaW1wbGVSZXF1ZXN0GhwuZ3JwYy50ZXN0aW5nLlNpbXBsZVJl", 
-            "c3BvbnNlEmwKE1N0cmVhbWluZ091dHB1dENhbGwSKC5ncnBjLnRlc3Rpbmcu", 
-            "U3RyZWFtaW5nT3V0cHV0Q2FsbFJlcXVlc3QaKS5ncnBjLnRlc3RpbmcuU3Ry", 
-            "ZWFtaW5nT3V0cHV0Q2FsbFJlc3BvbnNlMAESaQoSU3RyZWFtaW5nSW5wdXRD", 
-            "YWxsEicuZ3JwYy50ZXN0aW5nLlN0cmVhbWluZ0lucHV0Q2FsbFJlcXVlc3Qa", 
-            "KC5ncnBjLnRlc3RpbmcuU3RyZWFtaW5nSW5wdXRDYWxsUmVzcG9uc2UoARJp", 
-            "Cg5GdWxsRHVwbGV4Q2FsbBIoLmdycGMudGVzdGluZy5TdHJlYW1pbmdPdXRw", 
-            "dXRDYWxsUmVxdWVzdBopLmdycGMudGVzdGluZy5TdHJlYW1pbmdPdXRwdXRD", 
-            "YWxsUmVzcG9uc2UoATABEmkKDkhhbGZEdXBsZXhDYWxsEiguZ3JwYy50ZXN0", 
-            "aW5nLlN0cmVhbWluZ091dHB1dENhbGxSZXF1ZXN0GikuZ3JwYy50ZXN0aW5n", 
-            "LlN0cmVhbWluZ091dHB1dENhbGxSZXNwb25zZSgBMAEyVQoUVW5pbXBsZW1l", 
-            "bnRlZFNlcnZpY2USPQoRVW5pbXBsZW1lbnRlZENhbGwSEy5ncnBjLnRlc3Rp", 
-            "bmcuRW1wdHkaEy5ncnBjLnRlc3RpbmcuRW1wdHkyfwoQUmVjb25uZWN0U2Vy", 
-            "dmljZRIxCgVTdGFydBITLmdycGMudGVzdGluZy5FbXB0eRoTLmdycGMudGVz", 
-            "dGluZy5FbXB0eRI4CgRTdG9wEhMuZ3JwYy50ZXN0aW5nLkVtcHR5GhsuZ3Jw", 
-            "Yy50ZXN0aW5nLlJlY29ubmVjdEluZm9iBnByb3RvMw=="));
-      descriptor = pbr::FileDescriptor.InternalBuildGeneratedFileFrom(descriptorData,
-          new pbr::FileDescriptor[] { global::Grpc.Testing.Proto.Empty.Descriptor, global::Grpc.Testing.Messages.Descriptor, },
+            "CiFzcmMvcHJvdG8vZ3JwYy90ZXN0aW5nL3Rlc3QucHJvdG8SDGdycGMudGVz",
+            "dGluZxoic3JjL3Byb3RvL2dycGMvdGVzdGluZy9lbXB0eS5wcm90bxolc3Jj",
+            "L3Byb3RvL2dycGMvdGVzdGluZy9tZXNzYWdlcy5wcm90bzK7BAoLVGVzdFNl",
+            "cnZpY2USNQoJRW1wdHlDYWxsEhMuZ3JwYy50ZXN0aW5nLkVtcHR5GhMuZ3Jw",
+            "Yy50ZXN0aW5nLkVtcHR5EkYKCVVuYXJ5Q2FsbBIbLmdycGMudGVzdGluZy5T",
+            "aW1wbGVSZXF1ZXN0GhwuZ3JwYy50ZXN0aW5nLlNpbXBsZVJlc3BvbnNlEmwK",
+            "E1N0cmVhbWluZ091dHB1dENhbGwSKC5ncnBjLnRlc3RpbmcuU3RyZWFtaW5n",
+            "T3V0cHV0Q2FsbFJlcXVlc3QaKS5ncnBjLnRlc3RpbmcuU3RyZWFtaW5nT3V0",
+            "cHV0Q2FsbFJlc3BvbnNlMAESaQoSU3RyZWFtaW5nSW5wdXRDYWxsEicuZ3Jw",
+            "Yy50ZXN0aW5nLlN0cmVhbWluZ0lucHV0Q2FsbFJlcXVlc3QaKC5ncnBjLnRl",
+            "c3RpbmcuU3RyZWFtaW5nSW5wdXRDYWxsUmVzcG9uc2UoARJpCg5GdWxsRHVw",
+            "bGV4Q2FsbBIoLmdycGMudGVzdGluZy5TdHJlYW1pbmdPdXRwdXRDYWxsUmVx",
+            "dWVzdBopLmdycGMudGVzdGluZy5TdHJlYW1pbmdPdXRwdXRDYWxsUmVzcG9u",
+            "c2UoATABEmkKDkhhbGZEdXBsZXhDYWxsEiguZ3JwYy50ZXN0aW5nLlN0cmVh",
+            "bWluZ091dHB1dENhbGxSZXF1ZXN0GikuZ3JwYy50ZXN0aW5nLlN0cmVhbWlu",
+            "Z091dHB1dENhbGxSZXNwb25zZSgBMAEyVQoUVW5pbXBsZW1lbnRlZFNlcnZp",
+            "Y2USPQoRVW5pbXBsZW1lbnRlZENhbGwSEy5ncnBjLnRlc3RpbmcuRW1wdHka",
+            "Ey5ncnBjLnRlc3RpbmcuRW1wdHkyfwoQUmVjb25uZWN0U2VydmljZRIxCgVT",
+            "dGFydBITLmdycGMudGVzdGluZy5FbXB0eRoTLmdycGMudGVzdGluZy5FbXB0",
+            "eRI4CgRTdG9wEhMuZ3JwYy50ZXN0aW5nLkVtcHR5GhsuZ3JwYy50ZXN0aW5n",
+            "LlJlY29ubmVjdEluZm9iBnByb3RvMw=="));
+      descriptor = pbr::FileDescriptor.FromGeneratedCode(descriptorData,
+          new pbr::FileDescriptor[] { global::Grpc.Testing.EmptyReflection.Descriptor, global::Grpc.Testing.MessagesReflection.Descriptor, },
           new pbr::GeneratedCodeInfo(null, null));
     }
     #endregion
diff --git a/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs b/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs
index 8c884b7..2c46908 100644
--- a/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs
+++ b/src/csharp/Grpc.IntegrationTesting/TestGrpc.cs
@@ -1,5 +1,5 @@
 // Generated by the protocol buffer compiler.  DO NOT EDIT!
-// source: test/proto/test.proto
+// source: src/proto/grpc/testing/test.proto
 #region Designer generated code
 
 using System;
@@ -65,7 +65,7 @@
     // service descriptor
     public static global::Google.Protobuf.Reflection.ServiceDescriptor Descriptor
     {
-      get { return global::Grpc.Testing.Test.Descriptor.Services[0]; }
+      get { return global::Grpc.Testing.TestReflection.Descriptor.Services[0]; }
     }
 
     // client interface
@@ -223,7 +223,7 @@
     // service descriptor
     public static global::Google.Protobuf.Reflection.ServiceDescriptor Descriptor
     {
-      get { return global::Grpc.Testing.Test.Descriptor.Services[1]; }
+      get { return global::Grpc.Testing.TestReflection.Descriptor.Services[1]; }
     }
 
     // client interface
@@ -307,7 +307,7 @@
     // service descriptor
     public static global::Google.Protobuf.Reflection.ServiceDescriptor Descriptor
     {
-      get { return global::Grpc.Testing.Test.Descriptor.Services[2]; }
+      get { return global::Grpc.Testing.TestReflection.Descriptor.Services[2]; }
     }
 
     // client interface
diff --git a/src/csharp/Grpc.IntegrationTesting/packages.config b/src/csharp/Grpc.IntegrationTesting/packages.config
index 5c59af1..68490dc 100644
--- a/src/csharp/Grpc.IntegrationTesting/packages.config
+++ b/src/csharp/Grpc.IntegrationTesting/packages.config
@@ -4,8 +4,7 @@
   <package id="CommandLineParser" version="1.9.71" targetFramework="net45" />
   <package id="Google.Apis.Auth" version="1.9.3" targetFramework="net45" />
   <package id="Google.Apis.Core" version="1.9.3" targetFramework="net45" />
-  <package id="Google.Protobuf" version="3.0.0-alpha4" targetFramework="net45" />
-  <package id="Google.ProtocolBuffers" version="2.4.1.521" targetFramework="net45" />
+  <package id="Google.Protobuf" version="3.0.0-beta2" targetFramework="net45" />
   <package id="Ix-Async" version="1.2.3" targetFramework="net45" />
   <package id="Microsoft.Bcl" version="1.1.10" targetFramework="net45" />
   <package id="Microsoft.Bcl.Async" version="1.0.168" targetFramework="net45" />
diff --git a/src/csharp/build_packages.bat b/src/csharp/build_packages.bat
index 45f6b26..6912dad 100644
--- a/src/csharp/build_packages.bat
+++ b/src/csharp/build_packages.bat
@@ -3,7 +3,7 @@
 @rem Current package versions
 set VERSION=0.12.0
 set CORE_VERSION=0.12.0
-set PROTOBUF_VERSION=3.0.0-alpha4
+set PROTOBUF_VERSION=3.0.0-beta2
 
 @rem Packages that depend on prerelease packages (like Google.Protobuf) need to have prerelease suffix as well.
 set VERSION_WITH_BETA=%VERSION%-beta
@@ -11,22 +11,45 @@
 @rem Adjust the location of nuget.exe
 set NUGET=C:\nuget\nuget.exe
 
+@rem Collect the artifacts built by the previous build step if running on Jenkins
+@rem TODO(jtattermusch): is there a better way to do this?
+xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=windows\artifacts\* grpc.native.csharp\windows_x86\
+xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=windows\artifacts\* grpc.native.csharp\windows_x64\
+xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=linux\artifacts\* grpc.native.csharp\linux_x86\
+xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=linux\artifacts\* grpc.native.csharp\linux_x64\
+xcopy /Y /I ..\..\architecture=x86,language=csharp,platform=macos\artifacts\* grpc.native.csharp\macosx_x86\
+xcopy /Y /I ..\..\architecture=x64,language=csharp,platform=macos\artifacts\* grpc.native.csharp\macosx_x64\
+
+@rem Fetch all dependencies
+%NUGET% restore ..\..\vsprojects\grpc_csharp_ext.sln || goto :error
+%NUGET% restore Grpc.sln || goto :error
+
 setlocal
-cd ..\..\vsprojects\nuget_package
-@call buildall.bat || goto :error
+
+@call "%VS120COMNTOOLS%\..\..\vc\vcvarsall.bat" x86
+
+@rem We won't use the native libraries from this step, but without this Grpc.sln will fail.  
+msbuild ..\..\vsprojects\grpc_csharp_ext.sln /p:Configuration=Release /p:PlatformToolset=v120 || goto :error
+
+msbuild Grpc.sln /p:Configuration=ReleaseSigned || goto :error
+
 endlocal
 
-@call buildall.bat BUILD_SIGNED || goto :error
+@rem TODO(jtattermusch): re-enable protoc plugin building
+@rem @call ..\..\vsprojects\build_plugins.bat || goto :error
 
-@call ..\..\vsprojects\build_plugins.bat || goto :error
-
-%NUGET% pack ..\..\vsprojects\nuget_package\grpc.native.csharp.nuspec -Version %CORE_VERSION% || goto :error
+%NUGET% pack grpc.native.csharp\grpc.native.csharp.nuspec -Version %CORE_VERSION% || goto :error
 %NUGET% pack Grpc.Auth\Grpc.Auth.nuspec -Symbols -Version %VERSION% || goto :error
 %NUGET% pack Grpc.Core\Grpc.Core.nuspec -Symbols -Version %VERSION% -Properties GrpcNativeCsharpVersion=%CORE_VERSION% || goto :error
 %NUGET% pack Grpc.HealthCheck\Grpc.HealthCheck.nuspec -Symbols -Version %VERSION_WITH_BETA% -Properties ProtobufVersion=%PROTOBUF_VERSION% || goto :error
-%NUGET% pack Grpc.Tools.nuspec -Version %VERSION% || goto :error
 %NUGET% pack Grpc.nuspec -Version %VERSION% || goto :error
 
+@rem TODO(jtattermusch): re-enable building Grpc.Tools package
+@rem %NUGET% pack Grpc.Tools.nuspec -Version %VERSION% || goto :error
+
+@rem copy resulting nuget packages to artifacts directory
+xcopy /Y /I *.nupkg ..\..\artifacts\
+
 goto :EOF
 
 :error
diff --git a/src/csharp/buildall.bat b/src/csharp/buildall.bat
index 08d4bdb..fcc8442 100644
--- a/src/csharp/buildall.bat
+++ b/src/csharp/buildall.bat
@@ -15,10 +15,6 @@
 msbuild Grpc.sln /p:Configuration=Debug || goto :error
 msbuild Grpc.sln /p:Configuration=Release || goto :error
 
-if "%1" == "BUILD_SIGNED" (
-msbuild Grpc.sln /p:Configuration=ReleaseSigned || goto :error
-)
-
 endlocal
 
 goto :EOF
diff --git a/src/csharp/generate_proto_csharp.sh b/src/csharp/generate_proto_csharp.sh
index 3aeda21..0261a45 100755
--- a/src/csharp/generate_proto_csharp.sh
+++ b/src/csharp/generate_proto_csharp.sh
@@ -45,4 +45,4 @@
     -I src/proto/grpc/health/v1alpha src/proto/grpc/health/v1alpha/health.proto
 
 $PROTOC --plugin=$PLUGIN --csharp_out=$TESTING_DIR --grpc_out=$TESTING_DIR \
-    -I . src/proto/grpc/testing/{empty,messages,test}.proto test/proto/benchmarks/*.proto
+    -I . src/proto/grpc/testing/{control,empty,messages,payloads,services,stats,test}.proto 
diff --git a/src/csharp/grpc.native.csharp/README.md b/src/csharp/grpc.native.csharp/README.md
new file mode 100644
index 0000000..77f1cb9
--- /dev/null
+++ b/src/csharp/grpc.native.csharp/README.md
@@ -0,0 +1,22 @@
+gRPC Native Nuget package
+=========================
+
+Prerequisites
+-------------
+
+NuGet binary
+
+Building the package
+--------------------
+
+To build the native package, you need precompiled versions
+of grpc_csharp_ext library artifacts for Windows, Linux and Mac.
+In the normal gRPC release process, these are built by a Jenkins
+job and they are copied to the expected location before building
+the native nuget package is attempted.
+
+See tools/run_tests/build_artifacts.py for more details how
+precompiled artifacts are built.
+
+When building the native NuGet package, ignore the "Assembly outside lib folder"
+warnings (the DLLs are not assemblies, they are native libraries).
diff --git a/src/csharp/grpc.native.csharp/grpc.native.csharp.nuspec b/src/csharp/grpc.native.csharp/grpc.native.csharp.nuspec
new file mode 100644
index 0000000..6a1795b
--- /dev/null
+++ b/src/csharp/grpc.native.csharp/grpc.native.csharp.nuspec
@@ -0,0 +1,27 @@
+<?xml version="1.0" encoding="utf-8"?>
+<package>
+  <metadata>
+    <id>grpc.native.csharp</id>
+    <version>$version$</version>
+    <authors>Google Inc.</authors>
+    <owners>grpc-packages</owners>
+    <licenseUrl>https://github.com/grpc/grpc/blob/master/LICENSE</licenseUrl>
+    <projectUrl>http://github.com/grpc/grpc</projectUrl>
+    <requireLicenseAcceptance>false</requireLicenseAcceptance>
+    <description>Native extension needed by gRPC C# library. This is not the package you are looking for, it is only meant to be used as a dependency.</description>
+    <releaseNotes>Release of gRPC C core $version$ libraries.</releaseNotes>
+    <copyright>Copyright 2015-2016</copyright>
+    <title>gRPC C# Native Extension</title>
+    <summary>Native library required by gRPC C#</summary>
+    <tags>gRPC native</tags>
+  </metadata>
+  <files>
+    <file src="grpc.native.csharp.targets" target="\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets" />
+    <file src="windows_x86/grpc_csharp_ext.dll" target="/build/native/bin/windows_x86/grpc_csharp_ext.dll" />
+    <file src="windows_x64/grpc_csharp_ext.dll" target="/build/native/bin/windows_x64/grpc_csharp_ext.dll" />
+    <file src="linux_x86/libgrpc_csharp_ext.so" target="/build/native/bin/linux_x86/libgrpc_csharp_ext.so" />
+    <file src="linux_x64/libgrpc_csharp_ext.so" target="/build/native/bin/linux_x64/libgrpc_csharp_ext.so" />
+    <file src="macosx_x86/libgrpc_csharp_ext.dylib" target="/build/native/bin/macosx_x86/libgrpc_csharp_ext.dylib" />
+    <file src="macosx_x64/libgrpc_csharp_ext.dylib" target="/build/native/bin/macosx_x64/libgrpc_csharp_ext.dylib" />
+  </files>
+</package>
diff --git a/src/csharp/grpc.native.csharp/grpc.native.csharp.targets b/src/csharp/grpc.native.csharp/grpc.native.csharp.targets
new file mode 100644
index 0000000..501fc50
--- /dev/null
+++ b/src/csharp/grpc.native.csharp/grpc.native.csharp.targets
@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <Content Include="$(MSBuildThisFileDirectory)..\..\build\native\bin\windows_x86\grpc_csharp_ext.dll">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Link>nativelibs\windows_x86\grpc_csharp_ext.dll</Link>
+    </Content>
+    <Content Include="$(MSBuildThisFileDirectory)..\..\build\native\bin\windows_x64\grpc_csharp_ext.dll">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Link>nativelibs\windows_x64\grpc_csharp_ext.dll</Link>
+    </Content>
+    <Content Include="$(MSBuildThisFileDirectory)..\..\build\native\bin\linux_x86\libgrpc_csharp_ext.so">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Link>nativelibs\linux_x86\libgrpc_csharp_ext.so</Link>
+    </Content>
+    <Content Include="$(MSBuildThisFileDirectory)..\..\build\native\bin\linux_x64\libgrpc_csharp_ext.so">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Link>nativelibs\linux_x64\libgrpc_csharp_ext.so</Link>
+    </Content>
+    <Content Include="$(MSBuildThisFileDirectory)..\..\build\native\bin\macosx_x86\libgrpc_csharp_ext.dylib">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Link>nativelibs\macosx_x86\libgrpc_csharp_ext.dylib</Link>
+    </Content>
+    <Content Include="$(MSBuildThisFileDirectory)..\..\build\native\bin\macosx_x64\libgrpc_csharp_ext.dylib">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+      <Link>nativelibs\macosx_x64\libgrpc_csharp_ext.dylib</Link>
+    </Content>
+  </ItemGroup>
+</Project>
\ No newline at end of file
diff --git a/src/csharp/keys/Grpc.snk b/src/csharp/keys/Grpc.snk
new file mode 100644
index 0000000..cbeb68d
--- /dev/null
+++ b/src/csharp/keys/Grpc.snk
Binary files differ
diff --git a/src/csharp/keys/README.md b/src/csharp/keys/README.md
index f3e9a3c..968749a 100644
--- a/src/csharp/keys/README.md
+++ b/src/csharp/keys/README.md
@@ -2,4 +2,8 @@
 --------
 
 - Grpc.public.snk:
-  Public key to verify strong name of gRPC assemblies.
\ No newline at end of file
+  Public key to verify strong name of gRPC assemblies.
+- Grpc.snk:
+  Signing key to provide strong name of gRPC assemblies.
+  As per https://msdn.microsoft.com/en-us/library/wd40t7ad(v=vs.110).aspx
+  signing key should be checked into the repository.
\ No newline at end of file
diff --git a/src/objective-c/ProtoRPC/ProtoMethod.m b/src/objective-c/ProtoRPC/ProtoMethod.m
index 1113b4f..75e5efc 100644
--- a/src/objective-c/ProtoRPC/ProtoMethod.m
+++ b/src/objective-c/ProtoRPC/ProtoMethod.m
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -46,7 +46,7 @@
 }
 
 - (NSString *)HTTPPath {
-  if (_package) {
+  if (_package && _package.length > 0) {
     return [NSString stringWithFormat:@"/%@.%@/%@", _package, _service, _method];
   } else {
     return [NSString stringWithFormat:@"/%@/%@", _service, _method];
diff --git a/src/objective-c/examples/Sample/Sample/ViewController.m b/src/objective-c/examples/Sample/Sample/ViewController.m
index 3d634a3..a2bb3ee 100644
--- a/src/objective-c/examples/Sample/Sample/ViewController.m
+++ b/src/objective-c/examples/Sample/Sample/ViewController.m
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -45,7 +45,7 @@
 - (void)viewDidLoad {
   [super viewDidLoad];
 
-  NSString * const kRemoteHost = @"grpc-test.sandbox.google.com";
+  NSString * const kRemoteHost = @"grpc-test.sandbox.googleapis.com";
 
   RMTSimpleRequest *request = [[RMTSimpleRequest alloc] init];
   request.responseSize = 10;
diff --git a/src/objective-c/examples/SwiftSample/ViewController.swift b/src/objective-c/examples/SwiftSample/ViewController.swift
index 76dad9e..a21ce07 100644
--- a/src/objective-c/examples/SwiftSample/ViewController.swift
+++ b/src/objective-c/examples/SwiftSample/ViewController.swift
@@ -38,7 +38,7 @@
   override func viewDidLoad() {
     super.viewDidLoad()
 
-    let RemoteHost = "grpc-test.sandbox.google.com"
+    let RemoteHost = "grpc-test.sandbox.googleapis.com"
 
     let request = RMTSimpleRequest()
     request.responseSize = 10
diff --git a/src/objective-c/tests/InteropTestsRemote.m b/src/objective-c/tests/InteropTestsRemote.m
index a67be98..00eadc2 100644
--- a/src/objective-c/tests/InteropTestsRemote.m
+++ b/src/objective-c/tests/InteropTestsRemote.m
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -35,7 +35,7 @@
 
 #import "InteropTests.h"
 
-static NSString * const kRemoteSSLHost = @"grpc-test.sandbox.google.com";
+static NSString * const kRemoteSSLHost = @"grpc-test.sandbox.googleapis.com";
 
 /** Tests in InteropTests.m, sending the RPCs to a remote SSL server. */
 @interface InteropTestsRemote : InteropTests
diff --git a/src/python/grpcio/commands.py b/src/python/grpcio/commands.py
index e1a3f4b..bd12c55 100644
--- a/src/python/grpcio/commands.py
+++ b/src/python/grpcio/commands.py
@@ -39,17 +39,7 @@
 import setuptools
 from setuptools.command import build_py
 from setuptools.command import test
-
-# Because we need to support building without Cython but simultaneously need to
-# subclass its command class when we need to and because distutils requires a
-# special hook to acquire a command class, we attempt to import Cython's
-# build_ext, and if that fails we import setuptools'.
-try:
-  # Due to the strange way Cython's Distutils module re-imports build_ext, we
-  # import the build_ext class directly.
-  from Cython.Distutils.build_ext import build_ext
-except ImportError:
-  from setuptools.command.build_ext import build_ext
+from setuptools.command import build_ext
 
 PYTHON_STEM = os.path.dirname(os.path.abspath(__file__))
 
@@ -179,7 +169,7 @@
     build_py.build_py.run(self)
 
 
-class BuildExt(build_ext):
+class BuildExt(build_ext.build_ext):
   """Custom build_ext command to enable compiler-specific flags."""
 
   C_OPTIONS = {
@@ -196,7 +186,7 @@
     if compiler in BuildExt.LINK_OPTIONS:
       for extension in self.extensions:
         extension.extra_link_args += list(BuildExt.LINK_OPTIONS[compiler])
-    build_ext.build_extensions(self)
+    build_ext.build_ext.build_extensions(self)
 
 
 class Gather(setuptools.Command):
diff --git a/src/python/grpcio/grpc/framework/core/_termination.py b/src/python/grpcio/grpc/framework/core/_termination.py
index bdb9147..364158b 100644
--- a/src/python/grpcio/grpc/framework/core/_termination.py
+++ b/src/python/grpcio/grpc/framework/core/_termination.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -46,8 +46,8 @@
 
 def _service_completion_predicate(
     unused_emission_complete, transmission_complete, unused_reception_complete,
-    unused_ingestion_complete):
-  return transmission_complete
+    ingestion_complete):
+  return transmission_complete and ingestion_complete
 
 
 class TerminationManager(_interfaces.TerminationManager):
diff --git a/src/python/grpcio/grpc_core_dependencies.py b/src/python/grpcio/grpc_core_dependencies.py
index 952898d..98ab1ff 100644
--- a/src/python/grpcio/grpc_core_dependencies.py
+++ b/src/python/grpcio/grpc_core_dependencies.py
@@ -221,6 +221,7 @@
   'src/core/census/context.c',
   'src/core/census/initialize.c',
   'src/core/census/operation.c',
+  'src/core/census/tag_set.c',
   'src/core/census/tracing.c',
   'src/boringssl/err_data.c',
   'third_party/boringssl/crypto/aes/aes.c',
@@ -516,4 +517,19 @@
   'third_party/boringssl/ssl/t1_enc.c',
   'third_party/boringssl/ssl/t1_lib.c',
   'third_party/boringssl/ssl/tls_record.c',
+  'third_party/zlib/adler32.c',
+  'third_party/zlib/compress.c',
+  'third_party/zlib/crc32.c',
+  'third_party/zlib/deflate.c',
+  'third_party/zlib/gzclose.c',
+  'third_party/zlib/gzlib.c',
+  'third_party/zlib/gzread.c',
+  'third_party/zlib/gzwrite.c',
+  'third_party/zlib/infback.c',
+  'third_party/zlib/inffast.c',
+  'third_party/zlib/inflate.c',
+  'third_party/zlib/inftrees.c',
+  'third_party/zlib/trees.c',
+  'third_party/zlib/uncompr.c',
+  'third_party/zlib/zutil.c',
 ]
diff --git a/src/python/grpcio/tests/unit/framework/common/test_constants.py b/src/python/grpcio/tests/unit/framework/common/test_constants.py
index e1d3c27..9f1fb84 100644
--- a/src/python/grpcio/tests/unit/framework/common/test_constants.py
+++ b/src/python/grpcio/tests/unit/framework/common/test_constants.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -49,5 +49,8 @@
 # The size of payloads to transmit in tests.
 PAYLOAD_SIZE = 256 * 1024 + 17
 
+# The parallelism to use in tests of parallel RPCs.
+PARALLELISM = 200
+
 # The size of thread pools to use in tests.
 POOL_SIZE = 10
diff --git a/src/python/grpcio/tests/unit/framework/interfaces/face/_future_invocation_asynchronous_event_service.py b/src/python/grpcio/tests/unit/framework/interfaces/face/_future_invocation_asynchronous_event_service.py
index c178f2f..fc8daa9 100644
--- a/src/python/grpcio/tests/unit/framework/interfaces/face/_future_invocation_asynchronous_event_service.py
+++ b/src/python/grpcio/tests/unit/framework/interfaces/face/_future_invocation_asynchronous_event_service.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -219,6 +219,24 @@
 
         test_messages.verify(second_request, second_response, self)
 
+    for (group, method), test_messages_sequence in (
+        self._digest.unary_unary_messages_sequences.iteritems()):
+      for test_messages in test_messages_sequence:
+        requests = []
+        response_futures = []
+        for _ in range(test_constants.PARALLELISM):
+          request = test_messages.request()
+          response_future = self._invoker.future(group, method)(
+              request, test_constants.LONG_TIMEOUT)
+          requests.append(request)
+          response_futures.append(response_future)
+
+        responses = [
+            response_future.result() for response_future in response_futures]
+
+        for request, response in zip(requests, responses):
+          test_messages.verify(request, response, self)
+
   def testParallelInvocations(self):
     for (group, method), test_messages_sequence in (
         self._digest.unary_unary_messages_sequences.iteritems()):
diff --git a/src/ruby/README.md b/src/ruby/README.md
index 76d9f76..3179575 100644
--- a/src/ruby/README.md
+++ b/src/ruby/README.md
@@ -13,41 +13,16 @@
 -------------
 
 - Ruby 2.x. The gRPC API uses keyword args.
-- [homebrew][] on Mac OS X.  These simplify the installation of the gRPC C core.
 
 INSTALLATION
 ---------------
 
-**Linux (Debian):**
-
-Add [Debian jessie-backports][] to your `sources.list` file. Example:
-
-```sh
-echo "deb http://http.debian.net/debian jessie-backports main" | \
-sudo tee -a /etc/apt/sources.list
-```
-
-Install the gRPC Debian package
-
-```sh
-sudo apt-get update
-sudo apt-get install libgrpc-dev
-```
-
-Install the gRPC Ruby package
+**Linux and Mac OS X:**
 
 ```sh
 gem install grpc
 ```
 
-**Mac OS X**
-
-Install [homebrew][]. Run the following command to install gRPC Ruby.
-```sh
-$ curl -fsSL https://goo.gl/getgrpc | bash -s ruby
-```
-This will download and run the [gRPC install script][], then install the latest version of gRPC Ruby gem.  It also installs Protocol Buffers compiler (_protoc_) and the gRPC _protoc_ plugin for ruby.
-
 BUILD FROM SOURCE
 ---------------------
 - Clone this repository
@@ -95,8 +70,7 @@
   resp = stub.div(req)
   GRPC.logger.info("Answer: #{resp.inspect}")
   ```
-[homebrew]:http://brew.sh
-[gRPC install script]:https://raw.githubusercontent.com/grpc/homebrew-grpc/master/scripts/install
+
 [ruby extensions]:http://guides.rubygems.org/gems-with-extensions/
 [rubydoc]: http://www.rubydoc.info/gems/grpc
 [grpc.io]: http://www.grpc.io/docs/installation/ruby.html
diff --git a/tools/run_tests/run_sanity.sh b/src/zlib/gen_build_yaml.py
similarity index 60%
copy from tools/run_tests/run_sanity.sh
copy to src/zlib/gen_build_yaml.py
index 467f06e..8d6064b 100755
--- a/tools/run_tests/run_sanity.sh
+++ b/src/zlib/gen_build_yaml.py
@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/usr/bin/env python2.7
 
 # Copyright 2015-2016, Google Inc.
 # All rights reserved.
@@ -29,35 +29,39 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
+import re
+import os
+import sys
+import yaml
 
-set -e
+os.chdir(os.path.dirname(sys.argv[0])+'/../..')
 
-export TEST=true
+out = {}
 
-cd `dirname $0`/../..
+try:
+  with open('third_party/zlib/CMakeLists.txt') as f:
+    cmake = f.read()
 
-submodules=`mktemp /tmp/submXXXXXX`
-want_submodules=`mktemp /tmp/submXXXXXX`
+  def cmpath(x):
+    return 'third_party/zlib/%s' % x.replace('${CMAKE_CURRENT_BINARY_DIR}/', '')
 
-git submodule | awk '{ print $1 }' | sort > $submodules
-cat << EOF | awk '{ print $1 }' | sort > $want_submodules
- 9f897b25800d2f54f5c442ef01a60721aeca6d87 third_party/boringssl (version_for_cocoapods_1.0-67-g9f897b2)
- 05b155ff59114735ec8cd089f669c4c3d8f59029 third_party/gflags (v2.1.0-45-g05b155f)
- c99458533a9b4c743ed51537e25989ea55944908 third_party/googletest (release-1.7.0)
- 8fce8933649ce09c1661ff2b5b7f6eb79badd251 third_party/protobuf (v3.0.0-alpha-4-1-g8fce893)
- 50893291621658f355bc5b4d450a8d06a563053d third_party/zlib (v1.2.8)
-EOF
+  def cmvar(name):
+    regex = r'set\(\s*'
+    regex += name
+    regex += r'([^)]*)\)'
+    return [cmpath(x) for x in re.search(regex, cmake).group(1).split()]
 
-diff -u $submodules $want_submodules
+  out['libs'] = [{
+      'name': 'z',
+      'zlib': True,
+      'build': 'private',
+      'language': 'c',
+      'secure': 'no',
+      'src': sorted(cmvar('ZLIB_SRCS')),
+      'headers': sorted(cmvar('ZLIB_PUBLIC_HDRS') + cmvar('ZLIB_PRIVATE_HDRS')),
+  }]
+except:
+  pass
 
-rm $submodules $want_submodules
+print yaml.dump(out)
 
-if [ -f cache.mk ] ; then
-  echo "Please don't commit cache.mk"
-  exit 1
-fi
-
-./tools/buildgen/generate_projects.sh
-./tools/distrib/check_copyright.py
-./tools/distrib/clang_format_code.sh
-./tools/distrib/check_trailing_newlines.sh
diff --git a/templates/BUILD.template b/templates/BUILD.template
index bb18c35..54dc697 100644
--- a/templates/BUILD.template
+++ b/templates/BUILD.template
@@ -104,6 +104,11 @@
       "${dep}",
   % endfor
     ],
+  % if lib.name in ("grpc", "grpc_unsecure"):
+    copts = [
+      "-std=gnu99",
+    ],
+  % endif
   )
   </%def>
   
diff --git a/templates/Makefile.template b/templates/Makefile.template
index 4353a0d..589f724 100644
--- a/templates/Makefile.template
+++ b/templates/Makefile.template
@@ -105,114 +105,24 @@
 
   # Configurations
 
-  VALID_CONFIG_opt = 1
-  CC_opt = $(DEFAULT_CC)
-  CXX_opt = $(DEFAULT_CXX)
-  LD_opt = $(DEFAULT_CC)
-  LDXX_opt = $(DEFAULT_CXX)
-  CPPFLAGS_opt = -O2
-  LDFLAGS_opt = -rdynamic
-  DEFINES_opt = NDEBUG
+  % for name, args in configs.iteritems():
+  VALID_CONFIG_${name} = 1
+  %  if args.get('compile_the_world', False):
+  REQUIRE_CUSTOM_LIBRARIES_${name} = 1
+  %  endif
+  %  for tool, default in [('CC', 'CC'), ('CXX', 'CXX'), ('LD', 'CC'), ('LDXX', 'CXX')]:
+  ${tool}_${name} = ${args.get(tool, '$(DEFAULT_%s)' % default)}
+  %  endfor
+  %  for arg in ['CFLAGS', 'CXXFLAGS', 'CPPFLAGS', 'LDFLAGS', 'DEFINES']:
+  %   if args.get(arg, None) is not None:
+  ${arg}_${name} = ${args.get(arg)}
+  %   endif
+  %  endfor
+  %  if args.get('timeout_multiplier', 1) != 1:
+  DEFINES_${name} += GRPC_TEST_SLOWDOWN_BUILD_FACTOR=${args.timeout_multiplier}
+  %  endif
 
-  VALID_CONFIG_basicprof = 1
-  CC_basicprof = $(DEFAULT_CC)
-  CXX_basicprof = $(DEFAULT_CXX)
-  LD_basicprof = $(DEFAULT_CC)
-  LDXX_basicprof = $(DEFAULT_CXX)
-  CPPFLAGS_basicprof = -O2 -DGRPC_BASIC_PROFILER -DGRPC_TIMERS_RDTSC
-  LDFLAGS_basicprof =
-  DEFINES_basicprof = NDEBUG
-
-  VALID_CONFIG_stapprof = 1
-  CC_stapprof = $(DEFAULT_CC)
-  CXX_stapprof = $(DEFAULT_CXX)
-  LD_stapprof = $(DEFAULT_CC)
-  LDXX_stapprof = $(DEFAULT_CXX)
-  CPPFLAGS_stapprof = -O2 -DGRPC_STAP_PROFILER
-  LDFLAGS_stapprof =
-  DEFINES_stapprof = NDEBUG
-
-  VALID_CONFIG_dbg = 1
-  CC_dbg = $(DEFAULT_CC)
-  CXX_dbg = $(DEFAULT_CXX)
-  LD_dbg = $(DEFAULT_CC)
-  LDXX_dbg = $(DEFAULT_CXX)
-  CPPFLAGS_dbg = -O0
-  LDFLAGS_dbg = -rdynamic
-  DEFINES_dbg = _DEBUG DEBUG
-
-  VALID_CONFIG_mutrace = 1
-  CC_mutrace = $(DEFAULT_CC)
-  CXX_mutrace = $(DEFAULT_CXX)
-  LD_mutrace = $(DEFAULT_CC)
-  LDXX_mutrace = $(DEFAULT_CXX)
-  CPPFLAGS_mutrace = -O0
-  LDFLAGS_mutrace = -rdynamic
-  DEFINES_mutrace = _DEBUG DEBUG
-
-  VALID_CONFIG_valgrind = 1
-  REQUIRE_CUSTOM_LIBRARIES_valgrind = 1
-  CC_valgrind = $(DEFAULT_CC)
-  CXX_valgrind = $(DEFAULT_CXX)
-  LD_valgrind = $(DEFAULT_CC)
-  LDXX_valgrind = $(DEFAULT_CXX)
-  CPPFLAGS_valgrind = -O0
-  LDFLAGS_valgrind = -rdynamic
-  DEFINES_valgrind = _DEBUG DEBUG GRPC_TEST_SLOWDOWN_BUILD_FACTOR=20
-
-  VALID_CONFIG_tsan = 1
-  REQUIRE_CUSTOM_LIBRARIES_tsan = 1
-  CC_tsan = clang
-  CXX_tsan = clang++
-  LD_tsan = clang
-  LDXX_tsan = clang++
-  CFLAGS_tsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -fPIE -pie
-  CXXFLAGS_tsan = -O0 -fsanitize=thread -fno-omit-frame-pointer -Wno-unused-command-line-argument -fPIE -pie
-  LDFLAGS_tsan = -fsanitize=thread -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
-  DEFINES_tsan = NDEBUG GRPC_TEST_SLOWDOWN_BUILD_FACTOR=10
-
-  VALID_CONFIG_asan = 1
-  REQUIRE_CUSTOM_LIBRARIES_asan = 1
-  CC_asan = clang
-  CXX_asan = clang++
-  LD_asan = clang
-  LDXX_asan = clang++
-  CFLAGS_asan = -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
-  CXXFLAGS_asan = -O0 -fsanitize=address -fno-omit-frame-pointer -Wno-unused-command-line-argument
-  LDFLAGS_asan = -fsanitize=address
-  DEFINES_asan = GRPC_TEST_SLOWDOWN_BUILD_FACTOR=3
-
-  VALID_CONFIG_msan = 1
-  REQUIRE_CUSTOM_LIBRARIES_msan = 1
-  CC_msan = clang
-  CXX_msan = clang++-libc++
-  LD_msan = clang
-  LDXX_msan = clang++-libc++
-  CFLAGS_msan = -O0 -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -Wno-unused-command-line-argument -fPIE -pie
-  CXXFLAGS_msan = -O0 -fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -Wno-unused-command-line-argument -fPIE -pie
-  LDFLAGS_msan = -fsanitize=memory -DGTEST_HAS_TR1_TUPLE=0 -DGTEST_USE_OWN_TR1_TUPLE=1 -fPIE -pie $(if $(JENKINS_BUILD),-Wl$(comma)-Ttext-segment=0x7e0000000000,)
-  DEFINES_msan = NDEBUG GRPC_TEST_SLOWDOWN_BUILD_FACTOR=4
-
-  VALID_CONFIG_ubsan = 1
-  REQUIRE_CUSTOM_LIBRARIES_ubsan = 1
-  CC_ubsan = clang
-  CXX_ubsan = clang++
-  LD_ubsan = clang
-  LDXX_ubsan = clang++
-  CFLAGS_ubsan = -O1 -fsanitize=undefined -fno-omit-frame-pointer -Wno-unused-command-line-argument
-  CXXFLAGS_ubsan = -O1 -fsanitize=undefined -fno-omit-frame-pointer -Wno-unused-command-line-argument
-  LDFLAGS_ubsan = -fsanitize=undefined
-  DEFINES_ubsan = NDEBUG GRPC_TEST_SLOWDOWN_BUILD_FACTOR=3
-
-  VALID_CONFIG_gcov = 1
-  CC_gcov = gcc
-  CXX_gcov = g++
-  LD_gcov = gcc
-  LDXX_gcov = g++
-  CFLAGS_gcov = -O0 -fprofile-arcs -ftest-coverage -Wno-return-type
-  CXXFLAGS_gcov = -O0 -fprofile-arcs -ftest-coverage -Wno-return-type
-  LDFLAGS_gcov = -fprofile-arcs -ftest-coverage -rdynamic
-  DEFINES_gcov = _DEBUG DEBUG GPR_GCOV
+  % endfor
 
 
   # General settings.
@@ -542,15 +452,22 @@
   PC_LIBS_GRPC =
 
   ifeq ($(HAS_SYSTEM_ZLIB),false)
-  ifeq ($(HAS_EMBEDDED_ZLIB),true)
-  ZLIB_DEP = $(LIBDIR)/$(CONFIG)/zlib/libz.a
-  ZLIB_MERGE_LIBS = $(LIBDIR)/$(CONFIG)/zlib/libz.a
-  CPPFLAGS += -Ithird_party/zlib
-  LDFLAGS += -L$(LIBDIR)/$(CONFIG)/zlib
+  ifeq ($(HAS_EMBEDDED_ZLIB), true)
+  EMBED_ZLIB ?= true
   else
   DEP_MISSING += zlib
+  EMBED_ZLIB ?= broken
   endif
   else
+  EMBED_ZLIB ?= false
+  endif
+
+  ifeq ($(EMBED_ZLIB),true)
+  ZLIB_DEP = $(LIBDIR)/$(CONFIG)/libz.a
+  ZLIB_MERGE_LIBS = $(LIBDIR)/$(CONFIG)/libz.a
+  CPPFLAGS += -Ithird_party/zlib
+  LDFLAGS += -L$(LIBDIR)/$(CONFIG)/zlib
+  else
   ifeq ($(HAS_PKG_CONFIG),true)
   CPPFLAGS += $(shell $(PKG_CONFIG) --cflags zlib)
   LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L zlib)
@@ -849,14 +766,6 @@
   	$(PROTOC_CHECK_VERSION_CMD) || true
   	$(ZOOKEEPER_CHECK_CMD) || true
 
-  $(LIBDIR)/$(CONFIG)/zlib/libz.a:
-  	$(E) "[MAKE]    Building zlib"
-  	$(Q)(cd third_party/zlib ; CC="$(CC)" CFLAGS="$(CFLAGS_$(CONFIG)) $(PIC_CPPFLAGS) -fvisibility=hidden $(CPPFLAGS_$(CONFIG)) $(ZLIB_CFLAGS_EXTRA)" ./configure --static)
-  	$(Q)$(MAKE) -C third_party/zlib clean
-  	$(Q)$(MAKE) -C third_party/zlib
-  	$(Q)mkdir -p $(LIBDIR)/$(CONFIG)/zlib
-  	$(Q)cp third_party/zlib/libz.a $(LIBDIR)/$(CONFIG)/zlib
-
   third_party/protobuf/configure:
   	$(E) "[AUTOGEN] Preparing protobuf"
   	$(Q)(cd third_party/protobuf ; autoreconf -f -i -Wall,no-obsolete)
@@ -1528,6 +1437,8 @@
   $(LIB${lib.name.upper()}_OBJS): CFLAGS := -Ithird_party/boringssl/include $(CFLAGS) -Wno-sign-conversion -Wno-conversion -Wno-unused-value -fvisibility=hidden
   $(LIB${lib.name.upper()}_OBJS): CXXFLAGS := -Ithird_party/boringssl/include $(CXXFLAGS) -fvisibility=hidden
   $(LIB${lib.name.upper()}_OBJS): CPPFLAGS += -DOPENSSL_NO_ASM -D_GNU_SOURCE
+  % elif lib.zlib:
+  $(LIB${lib.name.upper()}_OBJS): CFLAGS := $(CFLAGS) -Wno-sign-conversion -Wno-conversion -Wno-unused-value -Wno-implicit-function-declaration -fvisibility=hidden
   % else:
   % endif
 
diff --git a/templates/tools/run_tests/configs.json.template b/templates/tools/run_tests/configs.json.template
new file mode 100644
index 0000000..5c82dfb
--- /dev/null
+++ b/templates/tools/run_tests/configs.json.template
@@ -0,0 +1,17 @@
+%YAML 1.2
+--- |
+  <%
+  import json
+  out_configs = []
+  for name, args in configs.iteritems():
+    config_args={}
+    config_args['config'] = name
+    if args.get('valgrind', None) is not None:
+      config_args['tool_prefix'] = ['valgrind'] + args.valgrind.split(' ')
+    if args.get('timeout_multiplier', 1) != 1:
+      config_args['timeout_multiplier'] = args.timeout_multiplier
+    if args.get('test_environ', None) is not None:
+      config_args['environ'] = args.test_environ
+    out_configs.append(config_args)
+  %>\
+  ${json.dumps(out_configs, sort_keys=True, indent=2)}
diff --git a/templates/tools/run_tests/sources_and_headers.json.template b/templates/tools/run_tests/sources_and_headers.json.template
index ba1c5a5..0480277 100644
--- a/templates/tools/run_tests/sources_and_headers.json.template
+++ b/templates/tools/run_tests/sources_and_headers.json.template
@@ -32,5 +32,5 @@
                      proto_headers(tgt.src)),
                  "deps": sorted(tgt.get('deps', []))}
                 for tgt in (targets + libs)
-                if not tgt.boringssl],
+                if not tgt.boringssl and not tgt.zlib],
                sort_keys=True, indent=2)}
diff --git a/templates/vsprojects/buildtests_c.sln.template b/templates/vsprojects/buildtests_c.sln.template
index e9438be..a985fea 100644
--- a/templates/vsprojects/buildtests_c.sln.template
+++ b/templates/vsprojects/buildtests_c.sln.template
@@ -2,6 +2,6 @@
 --- |
   <%namespace file="sln_defs.include" import="gen_solution"/>\
   <%
-  solution_projects = [p for p in vsprojects if p.build != 'protoc' and p.language == 'c' and not p.boringssl]
+  solution_projects = [p for p in vsprojects if p.build != 'protoc' and p.language == 'c' and not p.boringssl and not p.zlib]
   %>\
   ${gen_solution(solution_projects, use_dlls='yes')}
diff --git a/test/core/census/tag_set_test.c b/test/core/census/tag_set_test.c
new file mode 100644
index 0000000..1056e98
--- /dev/null
+++ b/test/core/census/tag_set_test.c
@@ -0,0 +1,375 @@
+/*
+ *
+ * Copyright 2015-2016, Google Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following disclaimer
+ * in the documentation and/or other materials provided with the
+ * distribution.
+ *     * Neither the name of Google Inc. nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+// Test census_tag_set functions, including encoding/decoding
+
+#include <grpc/census.h>
+#include <grpc/support/log.h>
+#include <grpc/support/time.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "test/core/util/test_config.h"
+
+static uint8_t one_byte_val = 7;
+static uint32_t four_byte_val = 0x12345678;
+static uint64_t eight_byte_val = 0x1234567890abcdef;
+
+// A set of tags Used to create a basic tag_set for testing. Each tag has a
+// unique set of flags. Note that replace_add_delete_test() relies on specific
+// offsets into this array - if you add or delete entries, you will also need
+// to change the test.
+#define BASIC_TAG_COUNT 8
+static census_tag basic_tags[BASIC_TAG_COUNT] = {
+    /* 0 */ {"key0", "printable", 10, 0},
+    /* 1 */ {"k1", "a", 2, CENSUS_TAG_PROPAGATE},
+    /* 2 */ {"k2", "longer printable string", 24, CENSUS_TAG_STATS},
+    /* 3 */ {"key_three", (char *)&one_byte_val, 1, CENSUS_TAG_BINARY},
+    /* 4 */ {"really_long_key_4", "random", 7,
+             CENSUS_TAG_PROPAGATE | CENSUS_TAG_STATS},
+    /* 5 */ {"k5", (char *)&four_byte_val, 4,
+             CENSUS_TAG_PROPAGATE | CENSUS_TAG_BINARY},
+    /* 6 */ {"k6", (char *)&eight_byte_val, 8,
+             CENSUS_TAG_STATS | CENSUS_TAG_BINARY},
+    /* 7 */ {"k7", (char *)&four_byte_val, 4,
+             CENSUS_TAG_PROPAGATE | CENSUS_TAG_STATS | CENSUS_TAG_BINARY}};
+
+// Set of tags used to modify the basic tag_set. Note that
+// replace_add_delete_test() relies on specific offsets into this array - if
+// you add or delete entries, you will also need to change the test. Other
+// tests that rely on specific instances have XXX_XXX_OFFSET definitions (also
+// change the defines below if you add/delete entires).
+#define MODIFY_TAG_COUNT 11
+static census_tag modify_tags[MODIFY_TAG_COUNT] = {
+#define REPLACE_VALUE_OFFSET 0
+    /* 0 */ {"key0", "replace printable", 18, 0},  // replaces tag value only
+#define ADD_TAG_OFFSET 1
+    /* 1 */ {"new_key", "xyzzy", 6, CENSUS_TAG_STATS},  // new tag
+#define DELETE_TAG_OFFSET 2
+    /* 2 */ {"k5", NULL, 5,
+             0},  // should delete tag, despite bogus value length
+    /* 3 */ {"k6", "foo", 0, 0},  // should delete tag, despite bogus value
+    /* 4 */ {"k6", "foo", 0, 0},  // try deleting already-deleted tag
+    /* 5 */ {"non-existent", NULL, 0, 0},  // another non-existent tag
+#define REPLACE_FLAG_OFFSET 6
+    /* 6 */ {"k1", "a", 2, 0},                   // change flags only
+    /* 7 */ {"k7", "bar", 4, CENSUS_TAG_STATS},  // change flags and value
+    /* 8 */ {"k2", (char *)&eight_byte_val, 8,
+             CENSUS_TAG_BINARY | CENSUS_TAG_PROPAGATE},  // more flags change
+                                                         // non-binary -> binary
+    /* 9 */ {"k6", "bar", 4, 0},  // add back tag, with different value
+    /* 10 */ {"foo", "bar", 4, CENSUS_TAG_PROPAGATE},  // another new tag
+};
+
+// Utility function to compare tags. Returns true if all fields match.
+static bool compare_tag(const census_tag *t1, const census_tag *t2) {
+  return (strcmp(t1->key, t2->key) == 0 && t1->value_len == t2->value_len &&
+          memcmp(t1->value, t2->value, t1->value_len) == 0 &&
+          t1->flags == t2->flags);
+}
+
+// Utility function to validate a tag exists in tag set.
+static bool validate_tag(const census_tag_set *cts, const census_tag *tag) {
+  census_tag tag2;
+  if (census_tag_set_get_tag_by_key(cts, tag->key, &tag2) != 1) return false;
+  return compare_tag(tag, &tag2);
+}
+
+// Create an empty tag_set.
+static void empty_test(void) {
+  struct census_tag_set *cts = census_tag_set_create(NULL, NULL, 0, NULL);
+  GPR_ASSERT(cts != NULL);
+  const census_tag_set_create_status *status =
+      census_tag_set_get_create_status(cts);
+  census_tag_set_create_status expected = {0, 0, 0, 0, 0, 0, 0, 0};
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag_set_destroy(cts);
+}
+
+// Test create and iteration over basic tag set.
+static void basic_test(void) {
+  const census_tag_set_create_status *status;
+  struct census_tag_set *cts =
+      census_tag_set_create(NULL, basic_tags, BASIC_TAG_COUNT, &status);
+  census_tag_set_create_status expected = {2, 2, 4, 0, 8, 0, 0, 0};
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag_set_iterator it;
+  census_tag_set_initialize_iterator(cts, &it);
+  census_tag tag;
+  while (census_tag_set_next_tag(&it, &tag)) {
+    // can't rely on tag return order: make sure it matches exactly one.
+    int matches = 0;
+    for (int i = 0; i < BASIC_TAG_COUNT; i++) {
+      if (compare_tag(&tag, &basic_tags[i])) matches++;
+    }
+    GPR_ASSERT(matches == 1);
+  }
+  census_tag_set_destroy(cts);
+}
+
+// Test that census_tag_set_get_tag_by_key().
+static void lookup_by_key_test(void) {
+  struct census_tag_set *cts =
+      census_tag_set_create(NULL, basic_tags, BASIC_TAG_COUNT, NULL);
+  census_tag tag;
+  for (int i = 0; i < BASIC_TAG_COUNT; i++) {
+    GPR_ASSERT(census_tag_set_get_tag_by_key(cts, basic_tags[i].key, &tag) ==
+               1);
+    GPR_ASSERT(compare_tag(&tag, &basic_tags[i]));
+  }
+  // non-existent keys
+  GPR_ASSERT(census_tag_set_get_tag_by_key(cts, "key", &tag) == 0);
+  GPR_ASSERT(census_tag_set_get_tag_by_key(cts, "key01", &tag) == 0);
+  GPR_ASSERT(census_tag_set_get_tag_by_key(cts, "k9", &tag) == 0);
+  GPR_ASSERT(census_tag_set_get_tag_by_key(cts, "random", &tag) == 0);
+  GPR_ASSERT(census_tag_set_get_tag_by_key(cts, "", &tag) == 0);
+  census_tag_set_destroy(cts);
+}
+
+// Try creating tag set with invalid entries.
+static void invalid_test(void) {
+  char key[300];
+  memset(key, 'k', 299);
+  key[299] = 0;
+  char value[300];
+  memset(value, 'v', 300);
+  census_tag tag = {key, value, 3, CENSUS_TAG_BINARY};
+  // long keys, short value. Key lengths (including terminator) should be
+  // <= 255 (CENSUS_MAX_TAG_KV_LEN)
+  GPR_ASSERT(strlen(key) == 299);
+  const census_tag_set_create_status *status;
+  struct census_tag_set *cts = census_tag_set_create(NULL, &tag, 1, &status);
+  census_tag_set_create_status expected = {0, 0, 0, 0, 0, 0, 1, 0};
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag_set_destroy(cts);
+  key[CENSUS_MAX_TAG_KV_LEN] = 0;
+  GPR_ASSERT(strlen(key) == CENSUS_MAX_TAG_KV_LEN);
+  cts = census_tag_set_create(NULL, &tag, 1, &status);
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag_set_destroy(cts);
+  key[CENSUS_MAX_TAG_KV_LEN - 1] = 0;
+  GPR_ASSERT(strlen(key) == CENSUS_MAX_TAG_KV_LEN - 1);
+  cts = census_tag_set_create(NULL, &tag, 1, &status);
+  census_tag_set_create_status expected2 = {0, 0, 1, 0, 1, 0, 0, 0};
+  GPR_ASSERT(memcmp(status, &expected2, sizeof(expected2)) == 0);
+  census_tag_set_destroy(cts);
+  // now try with long values
+  tag.value_len = 300;
+  cts = census_tag_set_create(NULL, &tag, 1, &status);
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag_set_destroy(cts);
+  tag.value_len = CENSUS_MAX_TAG_KV_LEN + 1;
+  cts = census_tag_set_create(NULL, &tag, 1, &status);
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag_set_destroy(cts);
+  tag.value_len = CENSUS_MAX_TAG_KV_LEN;
+  cts = census_tag_set_create(NULL, &tag, 1, &status);
+  GPR_ASSERT(memcmp(status, &expected2, sizeof(expected2)) == 0);
+  census_tag_set_destroy(cts);
+  // 0 length key.
+  key[0] = 0;
+  cts = census_tag_set_create(NULL, &tag, 1, &status);
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag_set_destroy(cts);
+}
+
+// Make a copy of a tag set
+static void copy_test(void) {
+  struct census_tag_set *cts =
+      census_tag_set_create(NULL, basic_tags, BASIC_TAG_COUNT, NULL);
+  const census_tag_set_create_status *status;
+  struct census_tag_set *cts2 = census_tag_set_create(cts, NULL, 0, &status);
+  census_tag_set_create_status expected = {2, 2, 4, 0, 0, 0, 0, 0};
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  for (int i = 0; i < BASIC_TAG_COUNT; i++) {
+    census_tag tag;
+    GPR_ASSERT(census_tag_set_get_tag_by_key(cts2, basic_tags[i].key, &tag) ==
+               1);
+    GPR_ASSERT(compare_tag(&tag, &basic_tags[i]));
+  }
+  census_tag_set_destroy(cts);
+  census_tag_set_destroy(cts2);
+}
+
+// replace a single tag value
+static void replace_value_test(void) {
+  struct census_tag_set *cts =
+      census_tag_set_create(NULL, basic_tags, BASIC_TAG_COUNT, NULL);
+  const census_tag_set_create_status *status;
+  struct census_tag_set *cts2 = census_tag_set_create(
+      cts, modify_tags + REPLACE_VALUE_OFFSET, 1, &status);
+  census_tag_set_create_status expected = {2, 2, 4, 0, 0, 1, 0, 0};
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag tag;
+  GPR_ASSERT(census_tag_set_get_tag_by_key(
+                 cts2, modify_tags[REPLACE_VALUE_OFFSET].key, &tag) == 1);
+  GPR_ASSERT(compare_tag(&tag, &modify_tags[REPLACE_VALUE_OFFSET]));
+  census_tag_set_destroy(cts);
+  census_tag_set_destroy(cts2);
+}
+
+// replace a single tags flags
+static void replace_flags_test(void) {
+  struct census_tag_set *cts =
+      census_tag_set_create(NULL, basic_tags, BASIC_TAG_COUNT, NULL);
+  const census_tag_set_create_status *status;
+  struct census_tag_set *cts2 =
+      census_tag_set_create(cts, modify_tags + REPLACE_FLAG_OFFSET, 1, &status);
+  census_tag_set_create_status expected = {1, 2, 5, 0, 0, 1, 0, 0};
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag tag;
+  GPR_ASSERT(census_tag_set_get_tag_by_key(
+                 cts2, modify_tags[REPLACE_FLAG_OFFSET].key, &tag) == 1);
+  GPR_ASSERT(compare_tag(&tag, &modify_tags[REPLACE_FLAG_OFFSET]));
+  census_tag_set_destroy(cts);
+  census_tag_set_destroy(cts2);
+}
+
+// delete a single tag.
+static void delete_tag_test(void) {
+  struct census_tag_set *cts =
+      census_tag_set_create(NULL, basic_tags, BASIC_TAG_COUNT, NULL);
+  const census_tag_set_create_status *status;
+  struct census_tag_set *cts2 =
+      census_tag_set_create(cts, modify_tags + DELETE_TAG_OFFSET, 1, &status);
+  census_tag_set_create_status expected = {2, 1, 4, 1, 0, 0, 0, 0};
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag tag;
+  GPR_ASSERT(census_tag_set_get_tag_by_key(
+                 cts2, modify_tags[DELETE_TAG_OFFSET].key, &tag) == 0);
+  census_tag_set_destroy(cts);
+  census_tag_set_destroy(cts2);
+}
+
+// add a single new tag.
+static void add_tag_test(void) {
+  struct census_tag_set *cts =
+      census_tag_set_create(NULL, basic_tags, BASIC_TAG_COUNT, NULL);
+  const census_tag_set_create_status *status;
+  struct census_tag_set *cts2 =
+      census_tag_set_create(cts, modify_tags + ADD_TAG_OFFSET, 1, &status);
+  census_tag_set_create_status expected = {2, 2, 5, 0, 1, 0, 0, 0};
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  census_tag tag;
+  GPR_ASSERT(census_tag_set_get_tag_by_key(
+                 cts2, modify_tags[ADD_TAG_OFFSET].key, &tag) == 1);
+  GPR_ASSERT(compare_tag(&tag, &modify_tags[ADD_TAG_OFFSET]));
+  census_tag_set_destroy(cts);
+  census_tag_set_destroy(cts2);
+}
+
+// test many changes at once.
+static void replace_add_delete_test(void) {
+  struct census_tag_set *cts =
+      census_tag_set_create(NULL, basic_tags, BASIC_TAG_COUNT, NULL);
+  const census_tag_set_create_status *status;
+  struct census_tag_set *cts2 =
+      census_tag_set_create(cts, modify_tags, MODIFY_TAG_COUNT, &status);
+  census_tag_set_create_status expected = {2, 1, 6, 2, 3, 4, 0, 2};
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  // validate tag set contents. Use specific indices into the two arrays
+  // holding tag values.
+  GPR_ASSERT(validate_tag(cts2, &basic_tags[3]));
+  GPR_ASSERT(validate_tag(cts2, &basic_tags[4]));
+  GPR_ASSERT(validate_tag(cts2, &modify_tags[0]));
+  GPR_ASSERT(validate_tag(cts2, &modify_tags[1]));
+  GPR_ASSERT(validate_tag(cts2, &modify_tags[6]));
+  GPR_ASSERT(validate_tag(cts2, &modify_tags[7]));
+  GPR_ASSERT(validate_tag(cts2, &modify_tags[8]));
+  GPR_ASSERT(validate_tag(cts2, &modify_tags[9]));
+  GPR_ASSERT(validate_tag(cts2, &modify_tags[10]));
+  GPR_ASSERT(!validate_tag(cts2, &basic_tags[0]));
+  GPR_ASSERT(!validate_tag(cts2, &basic_tags[1]));
+  GPR_ASSERT(!validate_tag(cts2, &basic_tags[2]));
+  GPR_ASSERT(!validate_tag(cts2, &basic_tags[5]));
+  GPR_ASSERT(!validate_tag(cts2, &basic_tags[6]));
+  GPR_ASSERT(!validate_tag(cts2, &basic_tags[7]));
+  census_tag_set_destroy(cts);
+  census_tag_set_destroy(cts2);
+}
+
+#define BUF_SIZE 200
+
+// test encode/decode.
+static void encode_decode_test(void) {
+  char buffer[BUF_SIZE];
+  struct census_tag_set *cts =
+      census_tag_set_create(NULL, basic_tags, BASIC_TAG_COUNT, NULL);
+  size_t print_bsize;
+  size_t bin_bsize;
+  // Test with too small a buffer
+  GPR_ASSERT(census_tag_set_encode(cts, buffer, 2, &print_bsize, &bin_bsize) ==
+             NULL);
+  char *b_buffer =
+      census_tag_set_encode(cts, buffer, BUF_SIZE, &print_bsize, &bin_bsize);
+  GPR_ASSERT(b_buffer != NULL && print_bsize > 0 && bin_bsize > 0 &&
+             print_bsize + bin_bsize <= BUF_SIZE &&
+             b_buffer == buffer + print_bsize);
+  census_tag_set *cts2 =
+      census_tag_set_decode(buffer, print_bsize, b_buffer, bin_bsize);
+  GPR_ASSERT(cts2 != NULL);
+  const census_tag_set_create_status *status =
+      census_tag_set_get_create_status(cts2);
+  census_tag_set_create_status expected = {2, 2, 0, 0, 0, 0, 0, 0};
+  GPR_ASSERT(memcmp(status, &expected, sizeof(expected)) == 0);
+  for (int i = 0; i < BASIC_TAG_COUNT; i++) {
+    census_tag tag;
+    if (CENSUS_TAG_IS_PROPAGATED(basic_tags[i].flags)) {
+      GPR_ASSERT(census_tag_set_get_tag_by_key(cts2, basic_tags[i].key, &tag) ==
+                 1);
+      GPR_ASSERT(compare_tag(&tag, &basic_tags[i]));
+    } else {
+      GPR_ASSERT(census_tag_set_get_tag_by_key(cts2, basic_tags[i].key, &tag) ==
+                 0);
+    }
+  }
+  census_tag_set_destroy(cts2);
+  census_tag_set_destroy(cts);
+}
+
+int main(int argc, char *argv[]) {
+  grpc_test_init(argc, argv);
+  empty_test();
+  basic_test();
+  lookup_by_key_test();
+  invalid_test();
+  copy_test();
+  replace_value_test();
+  replace_flags_test();
+  delete_tag_test();
+  add_tag_test();
+  replace_add_delete_test();
+  encode_decode_test();
+  return 0;
+}
diff --git a/test/core/fling/client.c b/test/core/fling/client.c
index 95e2ea1..02db681 100644
--- a/test/core/fling/client.c
+++ b/test/core/fling/client.c
@@ -203,7 +203,7 @@
 
   gpr_timespec end_warmup = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(3);
   gpr_timespec end_profiling = GRPC_TIMEOUT_SECONDS_TO_DEADLINE(30);
-  
+
   while (gpr_time_cmp(gpr_now(end_warmup.clock_type), end_warmup) < 0) {
     sc.do_one_step();
   }
diff --git a/test/core/transport/chttp2/timeout_encoding_test.c b/test/core/transport/chttp2/timeout_encoding_test.c
index ba6c319..f0e8ec3 100644
--- a/test/core/transport/chttp2/timeout_encoding_test.c
+++ b/test/core/transport/chttp2/timeout_encoding_test.c
@@ -1,6 +1,6 @@
 /*
  *
- * Copyright 2015, Google Inc.
+ * Copyright 2015-2016, Google Inc.
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -126,8 +126,13 @@
   decode_suite('S', gpr_time_from_seconds);
   decode_suite('M', gpr_time_from_minutes);
   decode_suite('H', gpr_time_from_hours);
+  assert_decodes_as("1000000000S",
+                    gpr_time_from_seconds(1000 * 1000 * 1000, GPR_TIMESPAN));
   assert_decodes_as("1000000000000000000000u",
                     gpr_inf_future(GPR_CLOCK_REALTIME));
+  assert_decodes_as("1000000001S", gpr_inf_future(GPR_CLOCK_REALTIME));
+  assert_decodes_as("2000000001S", gpr_inf_future(GPR_CLOCK_REALTIME));
+  assert_decodes_as("9999999999S", gpr_inf_future(GPR_CLOCK_REALTIME));
 }
 
 void test_decoding_fails(void) {
diff --git a/third_party/protobuf b/third_party/protobuf
index 8fce893..d5fb408 160000
--- a/third_party/protobuf
+++ b/third_party/protobuf
@@ -1 +1 @@
-Subproject commit 8fce8933649ce09c1661ff2b5b7f6eb79badd251
+Subproject commit d5fb408ddc281ffcadeb08699e65bb694656d0bd
diff --git a/tools/buildgen/bunch.py b/tools/buildgen/bunch.py
index 1f17ccb..3f5af53 100755
--- a/tools/buildgen/bunch.py
+++ b/tools/buildgen/bunch.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -64,4 +64,5 @@
   elif isinstance(dst, list) and isinstance(add, list):
     dst.extend(add)
   else:
-    raise Exception('Tried to merge incompatible objects %r, %r' % (dst, add))
+    raise Exception('Tried to merge incompatible objects %s %s\n\n%r\n\n%r' % (type(dst).__name__, type(add).__name__, dst, add))
+
diff --git a/tools/buildgen/generate_build_additions.sh b/tools/buildgen/generate_build_additions.sh
index a2cd824..4e7ba9e 100644
--- a/tools/buildgen/generate_build_additions.sh
+++ b/tools/buildgen/generate_build_additions.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -28,7 +28,13 @@
 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-gen_build_yaml_dirs="src/boringssl test/core/end2end test/core/bad_client test/core/bad_ssl src/proto"
+gen_build_yaml_dirs="  \
+  src/boringssl        \
+  src/proto            \
+  src/zlib             \
+  test/core/bad_client \
+  test/core/bad_ssl    \
+  test/core/end2end"
 gen_build_files=""
 for gen_build_yaml in $gen_build_yaml_dirs
 do
@@ -36,3 +42,4 @@
   $gen_build_yaml/gen_build_yaml.py > $output_file
   gen_build_files="$gen_build_files $output_file"
 done
+
diff --git a/tools/buildgen/plugins/expand_bin_attrs.py b/tools/buildgen/plugins/expand_bin_attrs.py
index 64bf4e3..735c60e 100755
--- a/tools/buildgen/plugins/expand_bin_attrs.py
+++ b/tools/buildgen/plugins/expand_bin_attrs.py
@@ -1,4 +1,4 @@
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -51,7 +51,9 @@
     tgt['platforms'] = sorted(tgt.get('platforms', default_platforms))
     tgt['ci_platforms'] = sorted(tgt.get('ci_platforms', tgt['platforms']))
     tgt['boringssl'] = tgt.get('boringssl', False)
+    tgt['zlib'] = tgt.get('zlib', False)
 
   libs = dictionary.get('libs')
   for lib in libs:
     lib['boringssl'] = lib.get('boringssl', False)
+    lib['zlib'] = lib.get('zlib', False)
diff --git a/tools/distrib/check_copyright.py b/tools/distrib/check_copyright.py
index 0c06690..935acf5 100755
--- a/tools/distrib/check_copyright.py
+++ b/tools/distrib/check_copyright.py
@@ -136,7 +136,10 @@
   else:
     log(args.skips, 'skip', filename)
     continue
-  text = load(filename)
+  try:
+    text = load(filename)
+  except:
+    continue
   m = re.search(re_license, text)
   if m:
     gdict = m.groupdict()
diff --git a/tools/doxygen/Doxyfile.core.internal b/tools/doxygen/Doxyfile.core.internal
index 2280fde..f6b6e59 100644
--- a/tools/doxygen/Doxyfile.core.internal
+++ b/tools/doxygen/Doxyfile.core.internal
@@ -1047,6 +1047,7 @@
 src/core/census/context.c \
 src/core/census/initialize.c \
 src/core/census/operation.c \
+src/core/census/tag_set.c \
 src/core/census/tracing.c \
 include/grpc/support/alloc.h \
 include/grpc/support/atm.h \
diff --git a/tools/jenkins/build_docker_and_run_tests.sh b/tools/jenkins/build_docker_and_run_tests.sh
index 175b3d5..562cfcb 100755
--- a/tools/jenkins/build_docker_and_run_tests.sh
+++ b/tools/jenkins/build_docker_and_run_tests.sh
@@ -65,6 +65,7 @@
   -e XDG_CACHE_HOME=/tmp/xdg-cache-home \
   -e THIS_IS_REALLY_NEEDED='see https://github.com/docker/docker/issues/14203 for why docker is awful' \
   -e HOST_GIT_ROOT=$git_root \
+  -e "BUILD_ID=$BUILD_ID" \
   -i $TTY_FLAG \
   -v "$git_root:/var/local/jenkins/grpc" \
   -v /tmp/ccache:/tmp/ccache \
diff --git a/tools/jenkins/build_interop_image.sh b/tools/jenkins/build_interop_image.sh
index d0c5470..7393706 100755
--- a/tools/jenkins/build_interop_image.sh
+++ b/tools/jenkins/build_interop_image.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -85,6 +85,7 @@
 (docker run \
   -e CCACHE_DIR=/tmp/ccache \
   -e THIS_IS_REALLY_NEEDED='see https://github.com/docker/docker/issues/14203 for why docker is awful' \
+  -e THIS_IS_REALLY_NEEDED_ONCE_AGAIN='For issue 4835. See https://github.com/docker/docker/issues/14203 for why docker is awful' \
   -i $TTY_FLAG \
   $MOUNT_ARGS \
   $BUILD_INTEROP_DOCKER_EXTRA_ARGS \
diff --git a/tools/jenkins/run_jenkins.sh b/tools/jenkins/run_jenkins.sh
index 84b4ea5..49b2fa5 100755
--- a/tools/jenkins/run_jenkins.sh
+++ b/tools/jenkins/run_jenkins.sh
@@ -54,7 +54,7 @@
 then
   echo "building $language on Linux"
 
-  ./tools/run_tests/run_tests.py --use_docker -t -l $language -c $config -x report.xml $@ || TESTS_FAILED="true"
+  ./tools/run_tests/run_tests.py --use_docker -t -l $language -c $config -x report.xml -j 3 $@ || TESTS_FAILED="true"
 
 elif [ "$platform" == "windows" ]
 then
@@ -63,19 +63,22 @@
   # Prevent msbuild from picking up "platform" env variable, which would break the build
   unset platform
 
-  python tools/run_tests/run_tests.py -t -l $language -c $config -x report.xml $@ || TESTS_FAILED="true"
+  python tools/run_tests/run_tests.py -t -l $language -c $config -x report.xml -j 3 $@ || TESTS_FAILED="true"
 
 elif [ "$platform" == "macos" ]
 then
   echo "building $language on MacOS"
 
-  ./tools/run_tests/run_tests.py -t -l $language -c $config -x report.xml $@ || TESTS_FAILED="true"
+  # Prevent msbuild from picking up "platform" env variable, which would break the build
+  unset platform
+
+  ./tools/run_tests/run_tests.py -t -l $language -c $config -x report.xml -j 3 $@ || TESTS_FAILED="true"
 
 elif [ "$platform" == "freebsd" ]
 then
   echo "building $language on FreeBSD"
 
-  MAKE=gmake ./tools/run_tests/run_tests.py -t -l $language -c $config -x report.xml $@ || TESTS_FAILED="true"
+  MAKE=gmake ./tools/run_tests/run_tests.py -t -l $language -c $config -x report.xml -j 3 $@ || TESTS_FAILED="true"
 
 else
   echo "Unknown platform $platform"
diff --git a/tools/run_tests/build_artifact_csharp.bat b/tools/run_tests/build_artifact_csharp.bat
new file mode 100644
index 0000000..33dc8c2
--- /dev/null
+++ b/tools/run_tests/build_artifact_csharp.bat
@@ -0,0 +1,12 @@
+@rem Builds C# artifacts on Windows
+
+@call vsprojects\build_vs2013.bat %* || goto :error
+
+mkdir artifacts
+copy /Y vsprojects\Release\grpc_csharp_ext.dll artifacts || copy /Y vsprojects\x64\Release\grpc_csharp_ext.dll artifacts || goto :error
+
+goto :EOF
+
+:error
+echo Failed!
+exit /b %errorlevel%
diff --git a/tools/run_tests/build_artifacts.py b/tools/run_tests/build_artifacts.py
index 0d7e3bd..0fd5bc6 100755
--- a/tools/run_tests/build_artifacts.py
+++ b/tools/run_tests/build_artifacts.py
@@ -45,7 +45,8 @@
 import uuid
 
 # Docker doesn't clean up after itself, so we do it on exit.
-atexit.register(lambda: subprocess.call(['stty', 'echo']))
+if jobset.platform_string() == 'linux':
+  atexit.register(lambda: subprocess.call(['stty', 'echo']))
 
 ROOT = os.path.abspath(os.path.join(os.path.dirname(sys.argv[0]), '../..'))
 os.chdir(ROOT)
@@ -122,7 +123,7 @@
     if self.platform == 'windows':
       msbuild_platform = 'Win32' if self.arch == 'x86' else self.arch
       return create_jobspec(self.name,
-                            ['vsprojects\\build_vs2013.bat',
+                            ['tools\\run_tests\\build_artifact_csharp.bat',
                              'vsprojects\\grpc_csharp_ext.sln',
                              '/p:Configuration=Release',
                              '/p:PlatformToolset=v120',
diff --git a/tools/run_tests/run_sanity.sh b/tools/run_tests/check_cache_mk.sh
similarity index 64%
copy from tools/run_tests/run_sanity.sh
copy to tools/run_tests/check_cache_mk.sh
index 467f06e..b738d6a 100755
--- a/tools/run_tests/run_sanity.sh
+++ b/tools/run_tests/check_cache_mk.sh
@@ -32,32 +32,8 @@
 
 set -e
 
-export TEST=true
-
-cd `dirname $0`/../..
-
-submodules=`mktemp /tmp/submXXXXXX`
-want_submodules=`mktemp /tmp/submXXXXXX`
-
-git submodule | awk '{ print $1 }' | sort > $submodules
-cat << EOF | awk '{ print $1 }' | sort > $want_submodules
- 9f897b25800d2f54f5c442ef01a60721aeca6d87 third_party/boringssl (version_for_cocoapods_1.0-67-g9f897b2)
- 05b155ff59114735ec8cd089f669c4c3d8f59029 third_party/gflags (v2.1.0-45-g05b155f)
- c99458533a9b4c743ed51537e25989ea55944908 third_party/googletest (release-1.7.0)
- 8fce8933649ce09c1661ff2b5b7f6eb79badd251 third_party/protobuf (v3.0.0-alpha-4-1-g8fce893)
- 50893291621658f355bc5b4d450a8d06a563053d third_party/zlib (v1.2.8)
-EOF
-
-diff -u $submodules $want_submodules
-
-rm $submodules $want_submodules
-
 if [ -f cache.mk ] ; then
   echo "Please don't commit cache.mk"
   exit 1
 fi
 
-./tools/buildgen/generate_projects.sh
-./tools/distrib/check_copyright.py
-./tools/distrib/clang_format_code.sh
-./tools/distrib/check_trailing_newlines.sh
diff --git a/tools/run_tests/run_sanity.sh b/tools/run_tests/check_submodules.sh
similarity index 86%
rename from tools/run_tests/run_sanity.sh
rename to tools/run_tests/check_submodules.sh
index 467f06e..b4ca4fa 100755
--- a/tools/run_tests/run_sanity.sh
+++ b/tools/run_tests/check_submodules.sh
@@ -44,7 +44,7 @@
  9f897b25800d2f54f5c442ef01a60721aeca6d87 third_party/boringssl (version_for_cocoapods_1.0-67-g9f897b2)
  05b155ff59114735ec8cd089f669c4c3d8f59029 third_party/gflags (v2.1.0-45-g05b155f)
  c99458533a9b4c743ed51537e25989ea55944908 third_party/googletest (release-1.7.0)
- 8fce8933649ce09c1661ff2b5b7f6eb79badd251 third_party/protobuf (v3.0.0-alpha-4-1-g8fce893)
+ d5fb408ddc281ffcadeb08699e65bb694656d0bd third_party/protobuf (v3.0.0-beta-2)
  50893291621658f355bc5b4d450a8d06a563053d third_party/zlib (v1.2.8)
 EOF
 
@@ -52,12 +52,3 @@
 
 rm $submodules $want_submodules
 
-if [ -f cache.mk ] ; then
-  echo "Please don't commit cache.mk"
-  exit 1
-fi
-
-./tools/buildgen/generate_projects.sh
-./tools/distrib/check_copyright.py
-./tools/distrib/clang_format_code.sh
-./tools/distrib/check_trailing_newlines.sh
diff --git a/tools/run_tests/configs.json b/tools/run_tests/configs.json
new file mode 100644
index 0000000..769942d
--- /dev/null
+++ b/tools/run_tests/configs.json
@@ -0,0 +1,67 @@
+[
+  {
+    "config": "opt"
+  }, 
+  {
+    "config": "basicprof"
+  }, 
+  {
+    "config": "helgrind", 
+    "timeout_multiplier": 20, 
+    "tool_prefix": [
+      "valgrind", 
+      "--tool=helgrind"
+    ]
+  }, 
+  {
+    "config": "asan-noleaks", 
+    "environ": {
+      "ASAN_OPTIONS": "detect_leaks=0:color=always"
+    }, 
+    "timeout_multiplier": 1.5
+  }, 
+  {
+    "config": "ubsan", 
+    "timeout_multiplier": 1.5
+  }, 
+  {
+    "config": "dbg"
+  }, 
+  {
+    "config": "stapprof"
+  }, 
+  {
+    "config": "gcov"
+  }, 
+  {
+    "config": "memcheck", 
+    "timeout_multiplier": 10, 
+    "tool_prefix": [
+      "valgrind", 
+      "--tool=memcheck", 
+      "--leak-check=full"
+    ]
+  }, 
+  {
+    "config": "asan", 
+    "environ": {
+      "ASAN_OPTIONS": "suppressions=tools/asan_suppressions.txt:detect_leaks=1:color=always", 
+      "LSAN_OPTIONS": "suppressions=tools/asan_suppressions.txt:report_objects=1"
+    }, 
+    "timeout_multiplier": 1.5
+  }, 
+  {
+    "config": "tsan", 
+    "environ": {
+      "TSAN_OPTIONS": "suppressions=tools/tsan_suppressions.txt:halt_on_error=1:second_deadlock_stack=1"
+    }, 
+    "timeout_multiplier": 2
+  }, 
+  {
+    "config": "msan", 
+    "timeout_multiplier": 1.5
+  }, 
+  {
+    "config": "mutrace"
+  }
+]
diff --git a/tools/run_tests/post_tests_ruby.sh b/tools/run_tests/post_tests_ruby.sh
index 66a9fbc..0877e44 100755
--- a/tools/run_tests/post_tests_ruby.sh
+++ b/tools/run_tests/post_tests_ruby.sh
@@ -43,4 +43,4 @@
 rm $tmp2
 rm $tmp1
 
-cp -rv $root/src/ruby/coverage $root/reports/ruby
+cp -rv $root/coverage $root/reports/ruby
diff --git a/tools/run_tests/pre_build_csharp.sh b/tools/run_tests/pre_build_csharp.sh
index 42ff60b..4341c02 100755
--- a/tools/run_tests/pre_build_csharp.sh
+++ b/tools/run_tests/pre_build_csharp.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Copyright 2015, Google Inc.
+# Copyright 2015-2016, Google Inc.
 # All rights reserved.
 #
 # Redistribution and use in source and binary forms, with or without
@@ -35,6 +35,11 @@
 
 root=`pwd`
 
+if [ -x "$(command -v nuget)" ]
+then
+  nuget restore Grpc.sln
+fi
+
 if [ -n "$NUGET" ]
 then
   $NUGET restore Grpc.sln
diff --git a/tools/run_tests/run_interop_tests.py b/tools/run_tests/run_interop_tests.py
index 10566d6..6ce618e 100755
--- a/tools/run_tests/run_interop_tests.py
+++ b/tools/run_tests/run_interop_tests.py
@@ -426,8 +426,8 @@
   """Creates jobspec for cloud-to-prod interop test"""
   container_name = None
   cmdargs = [
-      '--server_host_override=grpc-test.sandbox.google.com',
-      '--server_host=grpc-test.sandbox.google.com',
+      '--server_host_override=grpc-test.sandbox.googleapis.com',
+      '--server_host=grpc-test.sandbox.googleapis.com',
       '--server_port=443',
       '--use_tls=true',
       '--test_case=%s' % test_case]
diff --git a/tools/run_tests/run_tests.py b/tools/run_tests/run_tests.py
index 637aff8..f8b0102 100755
--- a/tools/run_tests/run_tests.py
+++ b/tools/run_tests/run_tests.py
@@ -31,6 +31,7 @@
 """Run tests in parallel."""
 
 import argparse
+import ast
 import glob
 import hashlib
 import itertools
@@ -66,15 +67,16 @@
 
 
 # SimpleConfig: just compile with CONFIG=config, and run the binary to test
-class SimpleConfig(object):
+class Config(object):
 
-  def __init__(self, config, environ=None, timeout_multiplier=1):
+  def __init__(self, config, environ=None, timeout_multiplier=1, tool_prefix=[]):
     if environ is None:
       environ = {}
     self.build_config = config
     self.allow_hashing = (config != 'gcov')
     self.environ = environ
     self.environ['CONFIG'] = config
+    self.tool_prefix = tool_prefix
     self.timeout_multiplier = timeout_multiplier
 
   def job_spec(self, cmdline, hash_targets, timeout_seconds=5*60,
@@ -93,38 +95,17 @@
     actual_environ = self.environ.copy()
     for k, v in environ.iteritems():
       actual_environ[k] = v
-    return jobset.JobSpec(cmdline=cmdline,
+    return jobset.JobSpec(cmdline=self.tool_prefix + cmdline,
                           shortname=shortname,
                           environ=actual_environ,
                           cpu_cost=cpu_cost,
-                          timeout_seconds=self.timeout_multiplier * timeout_seconds,
+                          timeout_seconds=(self.timeout_multiplier * timeout_seconds if timeout_seconds else None),
                           hash_targets=hash_targets
                               if self.allow_hashing else None,
                           flake_retries=5 if args.allow_flakes else 0,
                           timeout_retries=3 if args.allow_flakes else 0)
 
 
-# ValgrindConfig: compile with some CONFIG=config, but use valgrind to run
-class ValgrindConfig(object):
-
-  def __init__(self, config, tool, args=None):
-    if args is None:
-      args = []
-    self.build_config = config
-    self.tool = tool
-    self.args = args
-    self.allow_hashing = False
-
-  def job_spec(self, cmdline, hash_targets, cpu_cost=1.0):
-    return jobset.JobSpec(cmdline=['valgrind', '--tool=%s' % self.tool] +
-                          self.args + cmdline,
-                          shortname='valgrind %s' % cmdline[0],
-                          hash_targets=None,
-                          cpu_cost=cpu_cost,
-                          flake_retries=5 if args.allow_flakes else 0,
-                          timeout_retries=3 if args.allow_flakes else 0)
-
-
 def get_c_tests(travis, test_lang) :
   out = []
   platforms_str = 'ci_platforms' if travis else 'platforms'
@@ -178,6 +159,9 @@
       return ['buildtests_%s' % self.make_target]
     return ['buildtests_%s' % self.make_target, 'tools_%s' % self.make_target]
 
+  def make_options(self):
+    return []
+
   def pre_build_steps(self):
     if self.platform == 'windows':
       return [['tools\\run_tests\\pre_build_c.bat']]
@@ -216,6 +200,9 @@
   def make_targets(self, test_regex):
     return []
 
+  def make_options(self):
+    return []
+
   def build_steps(self):
     return [['tools/run_tests/build_node.sh']]
 
@@ -244,6 +231,9 @@
   def make_targets(self, test_regex):
     return ['static_c', 'shared_c']
 
+  def make_options(self):
+    return []
+
   def build_steps(self):
     return [['tools/run_tests/build_php.sh']]
 
@@ -283,6 +273,9 @@
   def make_targets(self, test_regex):
     return ['static_c', 'grpc_python_plugin', 'shared_c']
 
+  def make_options(self):
+    return []
+
   def build_steps(self):
     commands = []
     for python_version in self._build_python_versions:
@@ -322,6 +315,9 @@
   def make_targets(self, test_regex):
     return ['static_c']
 
+  def make_options(self):
+    return []
+
   def build_steps(self):
     return [['tools/run_tests/build_ruby.sh']]
 
@@ -394,6 +390,13 @@
     else:
       return ['grpc_csharp_ext']
 
+  def make_options(self):
+    if self.platform == 'mac':
+      # On Mac, official distribution of mono is 32bit.
+      return ['CFLAGS=-arch i386', 'LDFLAGS=-arch i386']
+    else:
+      return []
+
   def build_steps(self):
     if self.platform == 'windows':
       return [['src\\csharp\\buildall.bat']]
@@ -425,6 +428,9 @@
   def make_targets(self, test_regex):
     return ['grpc_objective_c_plugin', 'interop_server']
 
+  def make_options(self):
+    return []
+
   def build_steps(self):
     return [['src/objective-c/tests/build_tests.sh']]
 
@@ -444,8 +450,10 @@
 class Sanity(object):
 
   def test_specs(self, config, args):
-    return [config.job_spec(['tools/run_tests/run_sanity.sh'], None, timeout_seconds=15*60),
-            config.job_spec(['tools/run_tests/check_sources_and_headers.py'], None)]
+    import yaml
+    with open('tools/run_tests/sanity_tests.yaml', 'r') as f:
+      return [config.job_spec([cmd['script']], None, timeout_seconds=None, environ={'TEST': 'true'}, cpu_cost=cmd.get('cpu_cost', 1))
+              for cmd in yaml.load(f)]
 
   def pre_build_steps(self):
     return []
@@ -453,6 +461,9 @@
   def make_targets(self, test_regex):
     return ['run_dep_checks']
 
+  def make_options(self):
+    return []
+
   def build_steps(self):
     return []
 
@@ -480,6 +491,9 @@
   def make_targets(self, test_regex):
     return ['static']
 
+  def make_options(self):
+    return []
+
   def build_steps(self):
     return []
 
@@ -497,22 +511,8 @@
 
 
 # different configurations we can run under
-_CONFIGS = {
-    'dbg': SimpleConfig('dbg'),
-    'opt': SimpleConfig('opt'),
-    'tsan': SimpleConfig('tsan', timeout_multiplier=2, environ={
-        'TSAN_OPTIONS': 'suppressions=tools/tsan_suppressions.txt:halt_on_error=1:second_deadlock_stack=1'}),
-    'msan': SimpleConfig('msan', timeout_multiplier=1.5),
-    'ubsan': SimpleConfig('ubsan'),
-    'asan': SimpleConfig('asan', timeout_multiplier=1.5, environ={
-        'ASAN_OPTIONS': 'suppressions=tools/asan_suppressions.txt:detect_leaks=1:color=always',
-        'LSAN_OPTIONS': 'suppressions=tools/asan_suppressions.txt:report_objects=1'}),
-    'asan-noleaks': SimpleConfig('asan', environ={
-        'ASAN_OPTIONS': 'detect_leaks=0:color=always'}),
-    'gcov': SimpleConfig('gcov'),
-    'memcheck': ValgrindConfig('valgrind', 'memcheck', ['--leak-check=full']),
-    'helgrind': ValgrindConfig('dbg', 'helgrind')
-    }
+with open('tools/run_tests/configs.json') as f:
+  _CONFIGS = dict((cfg['config'], Config(**cfg)) for cfg in ast.literal_eval(f.read()))
 
 
 _DEFAULT = ['opt']
@@ -747,6 +747,14 @@
       print language, 'does not support multiple build configurations'
       sys.exit(1)
 
+language_make_options=[]
+if any(language.make_options() for language in languages):
+  if len(languages) != 1:
+    print 'languages with custom make options cannot be built simultaneously with other languages'
+    sys.exit(1)
+  else:
+    language_make_options = next(iter(languages)).make_options()
+
 if platform_string() != 'windows':
   if args.arch != 'default':
     print 'Architecture %s not supported on current platform.' % args.arch
@@ -770,7 +778,8 @@
                       '/p:Configuration=%s' % _WINDOWS_CONFIG[cfg],
                       _windows_toolset_option(args.compiler),
                       _windows_arch_option(args.arch)] +
-                      extra_args,
+                      extra_args +
+                      language_make_options,
                       shell=True, timeout_seconds=None)
       for target in targets]
 else:
@@ -778,9 +787,10 @@
     if targets:
       return [jobset.JobSpec([os.getenv('MAKE', 'make'),
                               '-f', makefile,
-                              '-j', '%d' % (multiprocessing.cpu_count() + 1),
+                              '-j', '%d' % args.jobs,
                               'EXTRA_DEFINES=GRPC_TEST_SLOWDOWN_MACHINE_FACTOR=%f' % args.slowdown,
                               'CONFIG=%s' % cfg] +
+                              language_make_options +
                              ([] if not args.travis else ['JENKINS_BUILD=1']) +
                              targets,
                              timeout_seconds=None)]
@@ -1100,3 +1110,4 @@
   if BuildAndRunError.POST_TEST in errors:
     exit_code |= 4
   sys.exit(exit_code)
+
diff --git a/tools/run_tests/sanity_tests.yaml b/tools/run_tests/sanity_tests.yaml
new file mode 100644
index 0000000..160acde
--- /dev/null
+++ b/tools/run_tests/sanity_tests.yaml
@@ -0,0 +1,9 @@
+# a set of tests that are run in parallel for sanity tests
+- script: tools/run_tests/check_sources_and_headers.py
+- script: tools/run_tests/check_submodules.sh
+- script: tools/run_tests/check_cache_mk.sh
+- script: tools/buildgen/generate_projects.sh
+  cpu_cost: 100
+- script: tools/distrib/check_copyright.py
+- script: tools/distrib/clang_format_code.sh
+- script: tools/distrib/check_trailing_newlines.sh
diff --git a/tools/run_tests/sources_and_headers.json b/tools/run_tests/sources_and_headers.json
index 3e42c59..a311a04 100644
--- a/tools/run_tests/sources_and_headers.json
+++ b/tools/run_tests/sources_and_headers.json
@@ -1098,6 +1098,20 @@
     ], 
     "headers": [], 
     "language": "c", 
+    "name": "tag_set_test", 
+    "src": [
+      "test/core/census/tag_set_test.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
     "name": "tcp_client_posix_test", 
     "src": [
       "test/core/iomgr/tcp_client_posix_test.c"
@@ -2062,6 +2076,184 @@
   }, 
   {
     "deps": [
+      "bad_client_test", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc_test_util_unsecure", 
+      "grpc_unsecure"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "badreq_bad_client_test", 
+    "src": [
+      "test/core/bad_client/tests/badreq.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "bad_client_test", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc_test_util_unsecure", 
+      "grpc_unsecure"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "connection_prefix_bad_client_test", 
+    "src": [
+      "test/core/bad_client/tests/connection_prefix.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "bad_client_test", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc_test_util_unsecure", 
+      "grpc_unsecure"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "headers_bad_client_test", 
+    "src": [
+      "test/core/bad_client/tests/headers.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "bad_client_test", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc_test_util_unsecure", 
+      "grpc_unsecure"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "initial_settings_frame_bad_client_test", 
+    "src": [
+      "test/core/bad_client/tests/initial_settings_frame.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "bad_client_test", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc_test_util_unsecure", 
+      "grpc_unsecure"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "server_registered_method_bad_client_test", 
+    "src": [
+      "test/core/bad_client/tests/server_registered_method.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "bad_client_test", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc_test_util_unsecure", 
+      "grpc_unsecure"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "simple_request_bad_client_test", 
+    "src": [
+      "test/core/bad_client/tests/simple_request.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "bad_client_test", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc_test_util_unsecure", 
+      "grpc_unsecure"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "unknown_frame_bad_client_test", 
+    "src": [
+      "test/core/bad_client/tests/unknown_frame.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "bad_client_test", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc_test_util_unsecure", 
+      "grpc_unsecure"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "window_overflow_bad_client_test", 
+    "src": [
+      "test/core/bad_client/tests/window_overflow.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "bad_ssl_test_server", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "bad_ssl_alpn_server", 
+    "src": [
+      "test/core/bad_ssl/servers/alpn.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "bad_ssl_test_server", 
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "bad_ssl_cert_server", 
+    "src": [
+      "test/core/bad_ssl/servers/cert.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "bad_ssl_alpn_test", 
+    "src": [
+      "test/core/bad_ssl/bad_ssl_test.c"
+    ]
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [], 
+    "language": "c", 
+    "name": "bad_ssl_cert_test", 
+    "src": [
+      "test/core/bad_ssl/bad_ssl_test.c"
+    ]
+  }, 
+  {
+    "deps": [
       "end2end_certs", 
       "end2end_tests", 
       "gpr", 
@@ -2544,184 +2736,6 @@
     ]
   }, 
   {
-    "deps": [
-      "bad_client_test", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc_test_util_unsecure", 
-      "grpc_unsecure"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "badreq_bad_client_test", 
-    "src": [
-      "test/core/bad_client/tests/badreq.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "bad_client_test", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc_test_util_unsecure", 
-      "grpc_unsecure"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "connection_prefix_bad_client_test", 
-    "src": [
-      "test/core/bad_client/tests/connection_prefix.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "bad_client_test", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc_test_util_unsecure", 
-      "grpc_unsecure"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "headers_bad_client_test", 
-    "src": [
-      "test/core/bad_client/tests/headers.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "bad_client_test", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc_test_util_unsecure", 
-      "grpc_unsecure"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "initial_settings_frame_bad_client_test", 
-    "src": [
-      "test/core/bad_client/tests/initial_settings_frame.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "bad_client_test", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc_test_util_unsecure", 
-      "grpc_unsecure"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "server_registered_method_bad_client_test", 
-    "src": [
-      "test/core/bad_client/tests/server_registered_method.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "bad_client_test", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc_test_util_unsecure", 
-      "grpc_unsecure"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "simple_request_bad_client_test", 
-    "src": [
-      "test/core/bad_client/tests/simple_request.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "bad_client_test", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc_test_util_unsecure", 
-      "grpc_unsecure"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "unknown_frame_bad_client_test", 
-    "src": [
-      "test/core/bad_client/tests/unknown_frame.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "bad_client_test", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc_test_util_unsecure", 
-      "grpc_unsecure"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "window_overflow_bad_client_test", 
-    "src": [
-      "test/core/bad_client/tests/window_overflow.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "bad_ssl_test_server", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "bad_ssl_alpn_server", 
-    "src": [
-      "test/core/bad_ssl/servers/alpn.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "bad_ssl_test_server", 
-      "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "bad_ssl_cert_server", 
-    "src": [
-      "test/core/bad_ssl/servers/cert.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "bad_ssl_alpn_test", 
-    "src": [
-      "test/core/bad_ssl/bad_ssl_test.c"
-    ]
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
-    ], 
-    "headers": [], 
-    "language": "c", 
-    "name": "bad_ssl_cert_test", 
-    "src": [
-      "test/core/bad_ssl/bad_ssl_test.c"
-    ]
-  }, 
-  {
     "deps": [], 
     "headers": [
       "include/grpc/support/alloc.h", 
@@ -3023,6 +3037,7 @@
       "src/core/census/initialize.c", 
       "src/core/census/operation.c", 
       "src/core/census/rpc_metric_id.h", 
+      "src/core/census/tag_set.c", 
       "src/core/census/tracing.c", 
       "src/core/channel/channel_args.c", 
       "src/core/channel/channel_args.h", 
@@ -3521,6 +3536,7 @@
       "src/core/census/initialize.c", 
       "src/core/census/operation.c", 
       "src/core/census/rpc_metric_id.h", 
+      "src/core/census/tag_set.c", 
       "src/core/census/tracing.c", 
       "src/core/channel/channel_args.c", 
       "src/core/channel/channel_args.h", 
@@ -4337,6 +4353,40 @@
   }, 
   {
     "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc_test_util_unsecure", 
+      "grpc_unsecure"
+    ], 
+    "headers": [
+      "test/core/bad_client/bad_client.h"
+    ], 
+    "language": "c", 
+    "name": "bad_client_test", 
+    "src": [
+      "test/core/bad_client/bad_client.c", 
+      "test/core/bad_client/bad_client.h"
+    ]
+  }, 
+  {
+    "deps": [
+      "gpr", 
+      "gpr_test_util", 
+      "grpc", 
+      "grpc_test_util"
+    ], 
+    "headers": [
+      "test/core/bad_ssl/server.h"
+    ], 
+    "language": "c", 
+    "name": "bad_ssl_test_server", 
+    "src": [
+      "test/core/bad_ssl/server.c", 
+      "test/core/bad_ssl/server.h"
+    ]
+  }, 
+  {
+    "deps": [
       "end2end_certs", 
       "gpr", 
       "gpr_test_util", 
@@ -4455,39 +4505,5 @@
       "test/core/end2end/data/server1_key.c", 
       "test/core/end2end/data/test_root_cert.c"
     ]
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util", 
-      "grpc_test_util_unsecure", 
-      "grpc_unsecure"
-    ], 
-    "headers": [
-      "test/core/bad_client/bad_client.h"
-    ], 
-    "language": "c", 
-    "name": "bad_client_test", 
-    "src": [
-      "test/core/bad_client/bad_client.c", 
-      "test/core/bad_client/bad_client.h"
-    ]
-  }, 
-  {
-    "deps": [
-      "gpr", 
-      "gpr_test_util", 
-      "grpc", 
-      "grpc_test_util"
-    ], 
-    "headers": [
-      "test/core/bad_ssl/server.h"
-    ], 
-    "language": "c", 
-    "name": "bad_ssl_test_server", 
-    "src": [
-      "test/core/bad_ssl/server.c", 
-      "test/core/bad_ssl/server.h"
-    ]
   }
 ]
diff --git a/tools/run_tests/tests.json b/tools/run_tests/tests.json
index e3dd29e..8c76b3f 100644
--- a/tools/run_tests/tests.json
+++ b/tools/run_tests/tests.json
@@ -1404,6 +1404,26 @@
     "ci_platforms": [
       "linux", 
       "mac", 
+      "posix", 
+      "windows"
+    ], 
+    "cpu_cost": 1.0, 
+    "exclude_configs": [], 
+    "flaky": false, 
+    "language": "c", 
+    "name": "tag_set_test", 
+    "platforms": [
+      "linux", 
+      "mac", 
+      "posix", 
+      "windows"
+    ]
+  }, 
+  {
+    "args": [], 
+    "ci_platforms": [
+      "linux", 
+      "mac", 
       "posix"
     ], 
     "cpu_cost": 0.5, 
diff --git a/vsprojects/buildtests_c.sln b/vsprojects/buildtests_c.sln
index 06e882e..d8ecdea 100644
--- a/vsprojects/buildtests_c.sln
+++ b/vsprojects/buildtests_c.sln
@@ -75,6 +75,17 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "bad_client_test", "vcxproj\test/bad_client\bad_client_test\bad_client_test.vcxproj", "{BA67B418-B699-E41A-9CC4-0279C49481A5}"
+	ProjectSection(myProperties) = preProject
+        	lib = "True"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
+		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "end2end_tests", "vcxproj\test/end2end/tests\end2end_tests\end2end_tests.vcxproj", "{1F1F9084-2A93-B80E-364F-5754894AFAB4}"
 	ProjectSection(myProperties) = preProject
         	lib = "True"
@@ -103,17 +114,6 @@
         	lib = "True"
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "bad_client_test", "vcxproj\test/bad_client\bad_client_test\bad_client_test.vcxproj", "{BA67B418-B699-E41A-9CC4-0279C49481A5}"
-	ProjectSection(myProperties) = preProject
-        	lib = "True"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
-		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "algorithm_test", "vcxproj\test\algorithm_test\algorithm_test.vcxproj", "{216FDCB2-9D93-0D86-F0F1-12E16312A191}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -848,6 +848,17 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "tag_set_test", "vcxproj\test\tag_set_test\tag_set_test.vcxproj", "{430F8F07-6AAD-0150-B35B-DB9E2E21941A}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{17BCAFC0-5FDC-4C94-AEB9-95F3E220614B} = {17BCAFC0-5FDC-4C94-AEB9-95F3E220614B}
+		{29D16885-7228-4C31-81ED-5F9187C7F2A9} = {29D16885-7228-4C31-81ED-5F9187C7F2A9}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "time_averaged_stats_test", "vcxproj\test\time_averaged_stats_test\time_averaged_stats_test.vcxproj", "{D1EB2A9B-8508-62D7-8FC4-11A11B1CBFD3}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -936,6 +947,102 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "badreq_bad_client_test", "vcxproj\test\badreq_bad_client_test\badreq_bad_client_test.vcxproj", "{8A811C28-E04E-A444-E4C1-7588DF5B90AE}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
+		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
+		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "connection_prefix_bad_client_test", "vcxproj\test\connection_prefix_bad_client_test\connection_prefix_bad_client_test.vcxproj", "{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
+		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
+		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "headers_bad_client_test", "vcxproj\test\headers_bad_client_test\headers_bad_client_test.vcxproj", "{7819A11E-607E-F0C0-FC47-C704CF7D818C}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
+		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
+		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "initial_settings_frame_bad_client_test", "vcxproj\test\initial_settings_frame_bad_client_test\initial_settings_frame_bad_client_test.vcxproj", "{6756895E-05BF-8CC7-58F2-868DF0C0300C}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
+		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
+		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "server_registered_method_bad_client_test", "vcxproj\test\server_registered_method_bad_client_test\server_registered_method_bad_client_test.vcxproj", "{B4E7CD82-988A-BD3A-29F8-8590D3A8BC28}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
+		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
+		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "simple_request_bad_client_test", "vcxproj\test\simple_request_bad_client_test\simple_request_bad_client_test.vcxproj", "{63422647-93FA-46BB-4827-95473D9D503C}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
+		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
+		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "unknown_frame_bad_client_test", "vcxproj\test\unknown_frame_bad_client_test\unknown_frame_bad_client_test.vcxproj", "{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
+		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
+		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "window_overflow_bad_client_test", "vcxproj\test\window_overflow_bad_client_test\window_overflow_bad_client_test.vcxproj", "{658D7F7F-9628-6545-743C-D949301DC5DC}"
+	ProjectSection(myProperties) = preProject
+        	lib = "False"
+	EndProjectSection
+	ProjectSection(ProjectDependencies) = postProject
+		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
+		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
+		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
+		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
+		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "h2_census_test", "vcxproj\test/end2end/fixtures\h2_census_test\h2_census_test.vcxproj", "{9E4180B0-81ED-7305-333F-653CE9AB819B}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -1188,102 +1295,6 @@
 		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
 	EndProjectSection
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "badreq_bad_client_test", "vcxproj\test\badreq_bad_client_test\badreq_bad_client_test.vcxproj", "{8A811C28-E04E-A444-E4C1-7588DF5B90AE}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
-		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
-		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "connection_prefix_bad_client_test", "vcxproj\test\connection_prefix_bad_client_test\connection_prefix_bad_client_test.vcxproj", "{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
-		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
-		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "headers_bad_client_test", "vcxproj\test\headers_bad_client_test\headers_bad_client_test.vcxproj", "{7819A11E-607E-F0C0-FC47-C704CF7D818C}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
-		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
-		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "initial_settings_frame_bad_client_test", "vcxproj\test\initial_settings_frame_bad_client_test\initial_settings_frame_bad_client_test.vcxproj", "{6756895E-05BF-8CC7-58F2-868DF0C0300C}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
-		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
-		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "server_registered_method_bad_client_test", "vcxproj\test\server_registered_method_bad_client_test\server_registered_method_bad_client_test.vcxproj", "{B4E7CD82-988A-BD3A-29F8-8590D3A8BC28}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
-		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
-		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "simple_request_bad_client_test", "vcxproj\test\simple_request_bad_client_test\simple_request_bad_client_test.vcxproj", "{63422647-93FA-46BB-4827-95473D9D503C}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
-		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
-		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "unknown_frame_bad_client_test", "vcxproj\test\unknown_frame_bad_client_test\unknown_frame_bad_client_test.vcxproj", "{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
-		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
-		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "window_overflow_bad_client_test", "vcxproj\test\window_overflow_bad_client_test\window_overflow_bad_client_test.vcxproj", "{658D7F7F-9628-6545-743C-D949301DC5DC}"
-	ProjectSection(myProperties) = preProject
-        	lib = "False"
-	EndProjectSection
-	ProjectSection(ProjectDependencies) = postProject
-		{BA67B418-B699-E41A-9CC4-0279C49481A5} = {BA67B418-B699-E41A-9CC4-0279C49481A5}
-		{0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF} = {0A7E7F92-FDEA-40F1-A9EC-3BA484F98BBF}
-		{46CEDFFF-9692-456A-AA24-38B5D6BCF4C5} = {46CEDFFF-9692-456A-AA24-38B5D6BCF4C5}
-		{EAB0A629-17A9-44DB-B5FF-E91A721FE037} = {EAB0A629-17A9-44DB-B5FF-E91A721FE037}
-		{B23D3D1A-9438-4EDA-BEB6-9A0A03D17792} = {B23D3D1A-9438-4EDA-BEB6-9A0A03D17792}
-	EndProjectSection
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Win32 = Debug|Win32
@@ -1424,6 +1435,22 @@
 		{E3110C46-A148-FF65-08FD-3324829BE7FE}.Release-DLL|Win32.Build.0 = Release|Win32
 		{E3110C46-A148-FF65-08FD-3324829BE7FE}.Release-DLL|x64.ActiveCfg = Release|x64
 		{E3110C46-A148-FF65-08FD-3324829BE7FE}.Release-DLL|x64.Build.0 = Release|x64
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug|Win32.ActiveCfg = Debug|Win32
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug|x64.ActiveCfg = Debug|x64
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release|Win32.ActiveCfg = Release|Win32
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release|x64.ActiveCfg = Release|x64
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug|Win32.Build.0 = Debug|Win32
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug|x64.Build.0 = Debug|x64
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release|Win32.Build.0 = Release|Win32
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release|x64.Build.0 = Release|x64
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug-DLL|x64.Build.0 = Debug|x64
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|Win32.Build.0 = Release|Win32
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|x64.ActiveCfg = Release|x64
+		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|x64.Build.0 = Release|x64
 		{1F1F9084-2A93-B80E-364F-5754894AFAB4}.Debug|Win32.ActiveCfg = Debug|Win32
 		{1F1F9084-2A93-B80E-364F-5754894AFAB4}.Debug|x64.ActiveCfg = Debug|x64
 		{1F1F9084-2A93-B80E-364F-5754894AFAB4}.Release|Win32.ActiveCfg = Release|Win32
@@ -1472,22 +1499,6 @@
 		{80EA2691-C037-6DD3-D3AB-21510BF0E64B}.Release-DLL|Win32.Build.0 = Release|Win32
 		{80EA2691-C037-6DD3-D3AB-21510BF0E64B}.Release-DLL|x64.ActiveCfg = Release|x64
 		{80EA2691-C037-6DD3-D3AB-21510BF0E64B}.Release-DLL|x64.Build.0 = Release|x64
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug|Win32.ActiveCfg = Debug|Win32
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug|x64.ActiveCfg = Debug|x64
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release|Win32.ActiveCfg = Release|Win32
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release|x64.ActiveCfg = Release|x64
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug|Win32.Build.0 = Debug|Win32
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug|x64.Build.0 = Debug|x64
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release|Win32.Build.0 = Release|Win32
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release|x64.Build.0 = Release|x64
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Debug-DLL|x64.Build.0 = Debug|x64
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|Win32.Build.0 = Release|Win32
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|x64.ActiveCfg = Release|x64
-		{BA67B418-B699-E41A-9CC4-0279C49481A5}.Release-DLL|x64.Build.0 = Release|x64
 		{216FDCB2-9D93-0D86-F0F1-12E16312A191}.Debug|Win32.ActiveCfg = Debug|Win32
 		{216FDCB2-9D93-0D86-F0F1-12E16312A191}.Debug|x64.ActiveCfg = Debug|x64
 		{216FDCB2-9D93-0D86-F0F1-12E16312A191}.Release|Win32.ActiveCfg = Release|Win32
@@ -2624,6 +2635,22 @@
 		{529771F0-10B0-9B1A-1E7E-8A8E01870348}.Release-DLL|Win32.Build.0 = Release|Win32
 		{529771F0-10B0-9B1A-1E7E-8A8E01870348}.Release-DLL|x64.ActiveCfg = Release|x64
 		{529771F0-10B0-9B1A-1E7E-8A8E01870348}.Release-DLL|x64.Build.0 = Release|x64
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Debug|Win32.ActiveCfg = Debug|Win32
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Debug|x64.ActiveCfg = Debug|x64
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Release|Win32.ActiveCfg = Release|Win32
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Release|x64.ActiveCfg = Release|x64
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Debug|Win32.Build.0 = Debug|Win32
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Debug|x64.Build.0 = Debug|x64
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Release|Win32.Build.0 = Release|Win32
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Release|x64.Build.0 = Release|x64
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Debug-DLL|x64.Build.0 = Debug|x64
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Release-DLL|Win32.Build.0 = Release|Win32
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Release-DLL|x64.ActiveCfg = Release|x64
+		{430F8F07-6AAD-0150-B35B-DB9E2E21941A}.Release-DLL|x64.Build.0 = Release|x64
 		{D1EB2A9B-8508-62D7-8FC4-11A11B1CBFD3}.Debug|Win32.ActiveCfg = Debug|Win32
 		{D1EB2A9B-8508-62D7-8FC4-11A11B1CBFD3}.Debug|x64.ActiveCfg = Debug|x64
 		{D1EB2A9B-8508-62D7-8FC4-11A11B1CBFD3}.Release|Win32.ActiveCfg = Release|Win32
@@ -2752,6 +2779,134 @@
 		{E35C24A0-8725-E773-FE78-CC0C67071EF7}.Release-DLL|Win32.Build.0 = Release|Win32
 		{E35C24A0-8725-E773-FE78-CC0C67071EF7}.Release-DLL|x64.ActiveCfg = Release|x64
 		{E35C24A0-8725-E773-FE78-CC0C67071EF7}.Release-DLL|x64.Build.0 = Release|x64
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Debug|Win32.ActiveCfg = Debug|Win32
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Debug|x64.ActiveCfg = Debug|x64
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Release|Win32.ActiveCfg = Release|Win32
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Release|x64.ActiveCfg = Release|x64
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Debug|Win32.Build.0 = Debug|Win32
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Debug|x64.Build.0 = Debug|x64
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Release|Win32.Build.0 = Release|Win32
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Release|x64.Build.0 = Release|x64
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Debug-DLL|x64.Build.0 = Debug|x64
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Release-DLL|Win32.Build.0 = Release|Win32
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Release-DLL|x64.ActiveCfg = Release|x64
+		{8A811C28-E04E-A444-E4C1-7588DF5B90AE}.Release-DLL|x64.Build.0 = Release|x64
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Debug|Win32.ActiveCfg = Debug|Win32
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Debug|x64.ActiveCfg = Debug|x64
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Release|Win32.ActiveCfg = Release|Win32
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Release|x64.ActiveCfg = Release|x64
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Debug|Win32.Build.0 = Debug|Win32
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Debug|x64.Build.0 = Debug|x64
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Release|Win32.Build.0 = Release|Win32
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Release|x64.Build.0 = Release|x64
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Debug-DLL|x64.Build.0 = Debug|x64
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Release-DLL|Win32.Build.0 = Release|Win32
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Release-DLL|x64.ActiveCfg = Release|x64
+		{AF9D0EB2-2A53-B815-3A63-E82C7F91DB29}.Release-DLL|x64.Build.0 = Release|x64
+		{7819A11E-607E-F0C0-FC47-C704CF7D818C}.Debug|Win32.ActiveCfg = Debug|Win32
+		{7819A11E-607E-F0C0-FC47-C704CF7D818C}.Debug|x64.ActiveCfg = Debug|x64
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+		{658D7F7F-9628-6545-743C-D949301DC5DC}.Debug-DLL|Win32.Build.0 = Debug|Win32
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@@ -3072,134 +3227,6 @@
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-		{B4E7CD82-988A-BD3A-29F8-8590D3A8BC28}.Release-DLL|Win32.Build.0 = Release|Win32
-		{B4E7CD82-988A-BD3A-29F8-8590D3A8BC28}.Release-DLL|x64.ActiveCfg = Release|x64
-		{B4E7CD82-988A-BD3A-29F8-8590D3A8BC28}.Release-DLL|x64.Build.0 = Release|x64
-		{63422647-93FA-46BB-4827-95473D9D503C}.Debug|Win32.ActiveCfg = Debug|Win32
-		{63422647-93FA-46BB-4827-95473D9D503C}.Debug|x64.ActiveCfg = Debug|x64
-		{63422647-93FA-46BB-4827-95473D9D503C}.Release|Win32.ActiveCfg = Release|Win32
-		{63422647-93FA-46BB-4827-95473D9D503C}.Release|x64.ActiveCfg = Release|x64
-		{63422647-93FA-46BB-4827-95473D9D503C}.Debug|Win32.Build.0 = Debug|Win32
-		{63422647-93FA-46BB-4827-95473D9D503C}.Debug|x64.Build.0 = Debug|x64
-		{63422647-93FA-46BB-4827-95473D9D503C}.Release|Win32.Build.0 = Release|Win32
-		{63422647-93FA-46BB-4827-95473D9D503C}.Release|x64.Build.0 = Release|x64
-		{63422647-93FA-46BB-4827-95473D9D503C}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{63422647-93FA-46BB-4827-95473D9D503C}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{63422647-93FA-46BB-4827-95473D9D503C}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{63422647-93FA-46BB-4827-95473D9D503C}.Debug-DLL|x64.Build.0 = Debug|x64
-		{63422647-93FA-46BB-4827-95473D9D503C}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{63422647-93FA-46BB-4827-95473D9D503C}.Release-DLL|Win32.Build.0 = Release|Win32
-		{63422647-93FA-46BB-4827-95473D9D503C}.Release-DLL|x64.ActiveCfg = Release|x64
-		{63422647-93FA-46BB-4827-95473D9D503C}.Release-DLL|x64.Build.0 = Release|x64
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Debug|Win32.ActiveCfg = Debug|Win32
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Debug|x64.ActiveCfg = Debug|x64
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Release|Win32.ActiveCfg = Release|Win32
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Release|x64.ActiveCfg = Release|x64
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Debug|Win32.Build.0 = Debug|Win32
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Debug|x64.Build.0 = Debug|x64
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Release|Win32.Build.0 = Release|Win32
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Release|x64.Build.0 = Release|x64
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Debug-DLL|x64.Build.0 = Debug|x64
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Release-DLL|Win32.Build.0 = Release|Win32
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Release-DLL|x64.ActiveCfg = Release|x64
-		{9E0A2239-20D5-DB2D-CA0D-69F24E3416E7}.Release-DLL|x64.Build.0 = Release|x64
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Debug|Win32.ActiveCfg = Debug|Win32
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Debug|x64.ActiveCfg = Debug|x64
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Release|Win32.ActiveCfg = Release|Win32
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Release|x64.ActiveCfg = Release|x64
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Debug|Win32.Build.0 = Debug|Win32
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Debug|x64.Build.0 = Debug|x64
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Release|Win32.Build.0 = Release|Win32
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Release|x64.Build.0 = Release|x64
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Debug-DLL|Win32.Build.0 = Debug|Win32
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Debug-DLL|x64.ActiveCfg = Debug|x64
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Debug-DLL|x64.Build.0 = Debug|x64
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Release-DLL|Win32.ActiveCfg = Release|Win32
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Release-DLL|Win32.Build.0 = Release|Win32
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Release-DLL|x64.ActiveCfg = Release|x64
-		{658D7F7F-9628-6545-743C-D949301DC5DC}.Release-DLL|x64.Build.0 = Release|x64
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/vsprojects/grpc.sln b/vsprojects/grpc.sln
index 823cc99..4919641 100644
--- a/vsprojects/grpc.sln
+++ b/vsprojects/grpc.sln
@@ -98,6 +98,11 @@
         	lib = "True"
 	EndProjectSection
 EndProject
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "z", "vcxproj\.\z\z.vcxproj", "{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}"
+	ProjectSection(myProperties) = preProject
+        	lib = "True"
+	EndProjectSection
+EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "gen_hpack_tables", "vcxproj\.\gen_hpack_tables\gen_hpack_tables.vcxproj", "{FCDEA4C7-7F26-05DB-D08F-A08F499026E6}"
 	ProjectSection(myProperties) = preProject
         	lib = "False"
@@ -344,6 +349,22 @@
 		{9FD9A3EF-C4A3-8390-D8F4-6F86C22A58CE}.Release-DLL|Win32.Build.0 = Release|Win32
 		{9FD9A3EF-C4A3-8390-D8F4-6F86C22A58CE}.Release-DLL|x64.ActiveCfg = Release|x64
 		{9FD9A3EF-C4A3-8390-D8F4-6F86C22A58CE}.Release-DLL|x64.Build.0 = Release|x64
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Debug|Win32.ActiveCfg = Debug|Win32
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Debug|x64.ActiveCfg = Debug|x64
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Release|Win32.ActiveCfg = Release|Win32
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Release|x64.ActiveCfg = Release|x64
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Debug|Win32.Build.0 = Debug|Win32
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Debug|x64.Build.0 = Debug|x64
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Release|Win32.Build.0 = Release|Win32
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Release|x64.Build.0 = Release|x64
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Debug-DLL|Win32.ActiveCfg = Debug|Win32
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Debug-DLL|Win32.Build.0 = Debug|Win32
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Debug-DLL|x64.ActiveCfg = Debug|x64
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Debug-DLL|x64.Build.0 = Debug|x64
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Release-DLL|Win32.ActiveCfg = Release|Win32
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Release-DLL|Win32.Build.0 = Release|Win32
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Release-DLL|x64.ActiveCfg = Release|x64
+		{FBADE9E3-6A3F-36D3-D676-C1B808451DD7}.Release-DLL|x64.Build.0 = Release|x64
 		{FCDEA4C7-7F26-05DB-D08F-A08F499026E6}.Debug|Win32.ActiveCfg = Debug|Win32
 		{FCDEA4C7-7F26-05DB-D08F-A08F499026E6}.Debug|x64.ActiveCfg = Debug|x64
 		{FCDEA4C7-7F26-05DB-D08F-A08F499026E6}.Release|Win32.ActiveCfg = Release|Win32
diff --git a/vsprojects/nuget_package/.gitignore b/vsprojects/nuget_package/.gitignore
deleted file mode 100644
index ae830da..0000000
--- a/vsprojects/nuget_package/.gitignore
+++ /dev/null
@@ -1,3 +0,0 @@
-/tmp
-/output
-*.nupkg
diff --git a/vsprojects/nuget_package/README.md b/vsprojects/nuget_package/README.md
deleted file mode 100644
index 58573f7..0000000
--- a/vsprojects/nuget_package/README.md
+++ /dev/null
@@ -1,23 +0,0 @@
-gRPC Native Nuget package
-=========================
-
-Prerequisites
--------------
-Multiple versions of VS installed to be able to build all the targets:
-* Visual Studio 2015
-* Visual Studio 2013
-* Visual Studio 2010 (you might need SP1 to prevent LNK1123 error)
-
-NuGet binary
-
-Building the package
---------------------
-
-Build all flavors of gRPC C# extension and package them as a NuGet package.
-```
-buildall.bat
-
-nuget pack grpc.native.csharp.nuspec
-```
-
-When building the NuGet package, ignore the "Assembly outside lib folder" warnings (they DLLs are not assemblies, they are native libraries).
diff --git a/vsprojects/nuget_package/buildall.bat b/vsprojects/nuget_package/buildall.bat
deleted file mode 100644
index e6cd0ac..0000000
--- a/vsprojects/nuget_package/buildall.bat
+++ /dev/null
@@ -1,31 +0,0 @@
-@echo off
-
-setlocal
-call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" amd64
-call :build x64 Release v140 || goto :eof
-call :build x64 Debug v140 || goto :eof
-endlocal
-
-setlocal
-call "C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\vcvarsall.bat" x86
-call :build Win32 Release v140 || goto :eof
-call :build Win32 Debug v140 || goto :eof
-endlocal
-
-setlocal
-call "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat" amd64
-call :build x64 Release v120 || goto :eof
-call :build x64 Debug v120 || goto :eof
-endlocal
-
-setlocal
-call "C:\Program Files (x86)\Microsoft Visual Studio 12.0\VC\vcvarsall.bat" x86
-call :build Win32 Release v120 || goto :eof
-call :build Win32 Debug v120 || goto :eof
-endlocal
-
-goto :eof
-
-:build
-msbuild /P:Platform=%1 /P:Configuration=%2 /P:PlatformToolset=%3 /P:OutDir=..\..\nuget_package\output\%3\%1\%2\ /P:IntDir=..\..\nuget_package\tmp\%3\%1\%2\ ..\grpc_csharp_ext.sln || goto :eof
-goto :eof
diff --git a/vsprojects/nuget_package/grpc.native.csharp.nuspec b/vsprojects/nuget_package/grpc.native.csharp.nuspec
deleted file mode 100644
index 72b9a79..0000000
--- a/vsprojects/nuget_package/grpc.native.csharp.nuspec
+++ /dev/null
@@ -1,32 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<package>
-  <metadata>
-    <id>grpc.native.csharp</id>
-    <version>$version$</version>
-    <authors>Google Inc.</authors>
-    <owners>grpc-packages</owners>
-    <licenseUrl>https://github.com/grpc/grpc/blob/master/LICENSE</licenseUrl>
-    <projectUrl>http://github.com/grpc/grpc</projectUrl>
-    <requireLicenseAcceptance>false</requireLicenseAcceptance>
-    <description>Native extension needed by gRPC C# library. This is not the package you are looking for, it is only meant to be used as a dependency.</description>
-    <releaseNotes>Release of gRPC C core $version$ libraries.</releaseNotes>
-    <copyright>Copyright 2015</copyright>
-    <title>gRPC C# Native Extension</title>
-    <summary>Native library required by gRPC C#</summary>
-    <tags>gRPC native</tags>
-  </metadata>
-  <files>
-    <file src="grpc.native.csharp.targets" target="\build\portable-net45+netcore45+wpa81+wp8\grpc.native.csharp.targets" />
-
-    <!-- VS 2013 -->
-    <file src="output\v120\Win32\Debug\grpc_csharp_ext.dll" target="/build/native/bin/v120\Win32\Debug\grpc_csharp_ext.dll" />
-    <file src="output\v120\Win32\Release\grpc_csharp_ext.dll" target="/build/native/bin/v120\Win32\Release\grpc_csharp_ext.dll" />
-    <file src="output\v120\x64\Debug\grpc_csharp_ext.dll" target="/build/native/bin/v120\x64\Debug\grpc_csharp_ext.dll" />
-    <file src="output\v120\x64\Release\grpc_csharp_ext.dll" target="/build/native/bin/v120\x64\Release\grpc_csharp_ext.dll" />
-    <!-- VS 2015 -->
-    <file src="output\v140\Win32\Debug\grpc_csharp_ext.dll" target="/build/native/bin/v140\Win32\Debug\grpc_csharp_ext.dll" />
-    <file src="output\v140\Win32\Release\grpc_csharp_ext.dll" target="/build/native/bin/v140\Win32\Release\grpc_csharp_ext.dll" />
-    <file src="output\v140\x64\Debug\grpc_csharp_ext.dll" target="/build/native/bin/v140\x64\Debug\grpc_csharp_ext.dll" />
-    <file src="output\v140\x64\Release\grpc_csharp_ext.dll" target="/build/native/bin/v140\x64\Release\grpc_csharp_ext.dll" />
-  </files>
-</package>
diff --git a/vsprojects/nuget_package/grpc.native.csharp.targets b/vsprojects/nuget_package/grpc.native.csharp.targets
deleted file mode 100644
index e59215b..0000000
--- a/vsprojects/nuget_package/grpc.native.csharp.targets
+++ /dev/null
@@ -1,41 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <PropertyGroup>
-    <!-- 
-    Whether or not to copy native dependencies to output directory as part of build. 
-    If not explicitly specified in the project file, this defaults to true on Windows
-    and false on Unix systems.
-    -->
-    <CopyNativeDependencies Condition=" '$(CopyNativeDependencies)' == '' And '$(OS)' != 'Unix' ">true</CopyNativeDependencies>
-    <CopyNativeDependencies Condition=" '$(CopyNativeDependencies)' == '' And '$(OS)' == 'Unix' ">false</CopyNativeDependencies>
-    
-	<!-- 
-	Select which platform toolset of native dependencies to use based on VS version (v120 is the default).
-	Value can be explicitly specified in the project file.
-	-->
-	<NativeDependenciesToolset Condition=" '$(NativeDependenciesToolset)' == '' And '$(VisualStudioVersion)' == '14.0' ">v140</NativeDependenciesToolset>
-	<NativeDependenciesToolset Condition=" '$(NativeDependenciesToolset)' == '' And '$(VisualStudioVersion)' == '10.0' ">v100</NativeDependenciesToolset>
-	<NativeDependenciesToolset Condition=" '$(NativeDependenciesToolset)' == '' ">v120</NativeDependenciesToolset>
-	
-	<!-- Select which platform of native dependencies to use. Value can be explicitly specified in the project file. -->
-    <NativeDependenciesPlatform Condition=" '$(NativeDependenciesPlatform)' == '' ">Win32</NativeDependenciesPlatform>
-    
-    <!--
-    Select which configuration of native dependencies to use. Uses release build if project configuration is Release,
-    otherwise defaults to Debug. Value can be explicitly specified in the project file.
-    -->
-    <NativeDependenciesConfiguration Condition=" '$(NativeDependenciesConfiguration)' == '' And '$(Configuration)' == 'Release' ">Release</NativeDependenciesConfiguration>
-    <NativeDependenciesConfiguration Condition=" '$(NativeDependenciesConfiguration)' == '' ">Debug</NativeDependenciesConfiguration>
-  </PropertyGroup>
-  <Choose>
-    <!-- Under older versions of Monodevelop, Choose is not supported and is just ignored, which gives us the desired effect. -->
-    <When Condition=" '$(CopyNativeDependencies)' == 'true' ">
-      <ItemGroup>
-        <Content Include="$(MSBuildThisFileDirectory)..\..\build\native\bin\$(NativeDependenciesToolset)\$(NativeDependenciesPlatform)\$(NativeDependenciesConfiguration)\grpc_csharp_ext.dll">
-          <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-        </Content>
-      </ItemGroup>
-	</When>
-  <Otherwise />
-  </Choose>
-</Project>
\ No newline at end of file
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj b/vsprojects/vcxproj/grpc/grpc.vcxproj
index 8d6800e..438667a 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj
@@ -708,6 +708,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\census\operation.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\census\tag_set.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\census\tracing.c">
     </ClCompile>
   </ItemGroup>
diff --git a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
index f29f881..90395ca 100644
--- a/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc/grpc.vcxproj.filters
@@ -451,6 +451,9 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\census\operation.c">
       <Filter>src\core\census</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\census\tag_set.c">
+      <Filter>src\core\census</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\census\tracing.c">
       <Filter>src\core\census</Filter>
     </ClCompile>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
index 78ffe14..014e67f 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj
@@ -644,6 +644,8 @@
     </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\census\operation.c">
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\census\tag_set.c">
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\census\tracing.c">
     </ClCompile>
   </ItemGroup>
diff --git a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
index e068c3f..4f8a77d 100644
--- a/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
+++ b/vsprojects/vcxproj/grpc_unsecure/grpc_unsecure.vcxproj.filters
@@ -391,6 +391,9 @@
     <ClCompile Include="$(SolutionDir)\..\src\core\census\operation.c">
       <Filter>src\core\census</Filter>
     </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\src\core\census\tag_set.c">
+      <Filter>src\core\census</Filter>
+    </ClCompile>
     <ClCompile Include="$(SolutionDir)\..\src\core\census\tracing.c">
       <Filter>src\core\census</Filter>
     </ClCompile>
diff --git a/vsprojects/vcxproj/qps/qps.vcxproj b/vsprojects/vcxproj/qps/qps.vcxproj
index 0b017e7..7df2597 100644
--- a/vsprojects/vcxproj/qps/qps.vcxproj
+++ b/vsprojects/vcxproj/qps/qps.vcxproj
@@ -168,14 +168,6 @@
     </ClCompile>
     <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\messages.grpc.pb.h">
     </ClInclude>
-    <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\control.pb.cc">
-    </ClCompile>
-    <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\control.pb.h">
-    </ClInclude>
-    <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\control.grpc.pb.cc">
-    </ClCompile>
-    <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\control.grpc.pb.h">
-    </ClInclude>
     <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\payloads.pb.cc">
     </ClCompile>
     <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\payloads.pb.h">
@@ -184,14 +176,6 @@
     </ClCompile>
     <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\payloads.grpc.pb.h">
     </ClInclude>
-    <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\services.pb.cc">
-    </ClCompile>
-    <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\services.pb.h">
-    </ClInclude>
-    <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\services.grpc.pb.cc">
-    </ClCompile>
-    <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\services.grpc.pb.h">
-    </ClInclude>
     <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\stats.pb.cc">
     </ClCompile>
     <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\stats.pb.h">
@@ -200,6 +184,22 @@
     </ClCompile>
     <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\stats.grpc.pb.h">
     </ClInclude>
+    <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\control.pb.cc">
+    </ClCompile>
+    <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\control.pb.h">
+    </ClInclude>
+    <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\control.grpc.pb.cc">
+    </ClCompile>
+    <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\control.grpc.pb.h">
+    </ClInclude>
+    <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\services.pb.cc">
+    </ClCompile>
+    <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\services.pb.h">
+    </ClInclude>
+    <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\services.grpc.pb.cc">
+    </ClCompile>
+    <ClInclude Include="$(SolutionDir)\..\src\proto\grpc\testing\services.grpc.pb.h">
+    </ClInclude>
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diff --git a/vsprojects/vcxproj/qps/qps.vcxproj.filters b/vsprojects/vcxproj/qps/qps.vcxproj.filters
index f575eae..14e18e2 100644
--- a/vsprojects/vcxproj/qps/qps.vcxproj.filters
+++ b/vsprojects/vcxproj/qps/qps.vcxproj.filters
@@ -4,16 +4,16 @@
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       <Filter>src\proto\grpc\testing</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\services.proto">
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       <Filter>src\proto\grpc\testing</Filter>
     </ClCompile>
-    <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\stats.proto">
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     <ClCompile Include="$(SolutionDir)\..\src\proto\grpc\testing\perf_db.proto">
diff --git a/vsprojects/vcxproj/test/tag_set_test/tag_set_test.vcxproj b/vsprojects/vcxproj/test/tag_set_test/tag_set_test.vcxproj
new file mode 100644
index 0000000..9a468af
--- /dev/null
+++ b/vsprojects/vcxproj/test/tag_set_test/tag_set_test.vcxproj
@@ -0,0 +1,199 @@
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new file mode 100644
index 0000000..6b31532
--- /dev/null
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new file mode 100644
index 0000000..4505dfa
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+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\uncompr.c">
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+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\zutil.c">
+    </ClCompile>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+  <Target Name="EnsureNuGetPackageBuildImports" BeforeTargets="PrepareForBuild">
+    <PropertyGroup>
+      <ErrorText>This project references NuGet package(s) that are missing on this computer. Enable NuGet Package Restore to download them.  For more information, see http://go.microsoft.com/fwlink/?LinkID=322105. The missing file is {0}.</ErrorText>
+    </PropertyGroup>
+  </Target>
+</Project>
+
diff --git a/vsprojects/vcxproj/z/z.vcxproj.filters b/vsprojects/vcxproj/z/z.vcxproj.filters
new file mode 100644
index 0000000..4aea144
--- /dev/null
+++ b/vsprojects/vcxproj/z/z.vcxproj.filters
@@ -0,0 +1,95 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+  <ItemGroup>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\adler32.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\compress.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\crc32.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\deflate.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\gzclose.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\gzlib.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\gzread.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\gzwrite.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\infback.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\inffast.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\inflate.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\inftrees.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\trees.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\uncompr.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+    <ClCompile Include="$(SolutionDir)\..\third_party\zlib\zutil.c">
+      <Filter>third_party\zlib</Filter>
+    </ClCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\crc32.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\deflate.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\gzguts.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\inffast.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\inffixed.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\inflate.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\inftrees.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\trees.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\zconf.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\zlib.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+    <ClInclude Include="$(SolutionDir)\..\third_party\zlib\zutil.h">
+      <Filter>third_party\zlib</Filter>
+    </ClInclude>
+  </ItemGroup>
+
+  <ItemGroup>
+    <Filter Include="third_party">
+      <UniqueIdentifier>{ec647746-5bc0-66f4-80c6-a5dbd9f9db6f}</UniqueIdentifier>
+    </Filter>
+    <Filter Include="third_party\zlib">
+      <UniqueIdentifier>{3c4d2d48-67ef-199d-360e-79e7f5cad175}</UniqueIdentifier>
+    </Filter>
+  </ItemGroup>
+</Project>
+