diff --git a/build.yaml b/build.yaml
index 14abc82..37e1725 100644
--- a/build.yaml
+++ b/build.yaml
@@ -4471,7 +4471,6 @@
   deps:
   - grpc
   - gpr
-  - ares
   - boringssl
   headers:
   - src/php/ext/grpc/byte_buffer.h
diff --git a/config.m4 b/config.m4
index 74b60c9..f80a205 100644
--- a/config.m4
+++ b/config.m4
@@ -8,8 +8,6 @@
   PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/include)
   PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/src/php/ext/grpc)
   PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/boringssl/include)
-  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/cares)
-  PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/cares/cares)
 
   LIBS="-lpthread $LIBS"
 
@@ -21,10 +19,8 @@
 
   case $host in
     *darwin*)
-      PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/cares/config_darwin)
       ;;
     *)
-      PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/cares/config_linux)
       PHP_ADD_LIBRARY(rt,,GRPC_SHARED_LIBADD)
       PHP_ADD_LIBRARY(rt)
       ;;
@@ -626,59 +622,10 @@
     third_party/boringssl/ssl/tls13_server.c \
     third_party/boringssl/ssl/tls_method.c \
     third_party/boringssl/ssl/tls_record.c \
-    third_party/cares/cares/ares__close_sockets.c \
-    third_party/cares/cares/ares__get_hostent.c \
-    third_party/cares/cares/ares__read_line.c \
-    third_party/cares/cares/ares__timeval.c \
-    third_party/cares/cares/ares_cancel.c \
-    third_party/cares/cares/ares_create_query.c \
-    third_party/cares/cares/ares_data.c \
-    third_party/cares/cares/ares_destroy.c \
-    third_party/cares/cares/ares_expand_name.c \
-    third_party/cares/cares/ares_expand_string.c \
-    third_party/cares/cares/ares_fds.c \
-    third_party/cares/cares/ares_free_hostent.c \
-    third_party/cares/cares/ares_free_string.c \
-    third_party/cares/cares/ares_getenv.c \
-    third_party/cares/cares/ares_gethostbyaddr.c \
-    third_party/cares/cares/ares_gethostbyname.c \
-    third_party/cares/cares/ares_getnameinfo.c \
-    third_party/cares/cares/ares_getopt.c \
-    third_party/cares/cares/ares_getsock.c \
-    third_party/cares/cares/ares_init.c \
-    third_party/cares/cares/ares_library_init.c \
-    third_party/cares/cares/ares_llist.c \
-    third_party/cares/cares/ares_mkquery.c \
-    third_party/cares/cares/ares_nowarn.c \
-    third_party/cares/cares/ares_options.c \
-    third_party/cares/cares/ares_parse_a_reply.c \
-    third_party/cares/cares/ares_parse_aaaa_reply.c \
-    third_party/cares/cares/ares_parse_mx_reply.c \
-    third_party/cares/cares/ares_parse_naptr_reply.c \
-    third_party/cares/cares/ares_parse_ns_reply.c \
-    third_party/cares/cares/ares_parse_ptr_reply.c \
-    third_party/cares/cares/ares_parse_soa_reply.c \
-    third_party/cares/cares/ares_parse_srv_reply.c \
-    third_party/cares/cares/ares_parse_txt_reply.c \
-    third_party/cares/cares/ares_platform.c \
-    third_party/cares/cares/ares_process.c \
-    third_party/cares/cares/ares_query.c \
-    third_party/cares/cares/ares_search.c \
-    third_party/cares/cares/ares_send.c \
-    third_party/cares/cares/ares_strcasecmp.c \
-    third_party/cares/cares/ares_strdup.c \
-    third_party/cares/cares/ares_strerror.c \
-    third_party/cares/cares/ares_timeout.c \
-    third_party/cares/cares/ares_version.c \
-    third_party/cares/cares/ares_writev.c \
-    third_party/cares/cares/bitncmp.c \
-    third_party/cares/cares/inet_net_pton.c \
-    third_party/cares/cares/inet_ntop.c \
-    third_party/cares/cares/windows_port.c \
     , $ext_shared, , -Wall -Werror \
     -Wno-parentheses-equality -Wno-unused-value -std=c11 \
     -fvisibility=hidden -DOPENSSL_NO_ASM -D_GNU_SOURCE -DWIN32_LEAN_AND_MEAN \
-    -D_HAS_EXCEPTIONS=0 -DNOMINMAX)
+    -D_HAS_EXCEPTIONS=0 -DNOMINMAX -DGRPC_ARES=0)
 
   PHP_ADD_BUILD_DIR($ext_builddir/src/php/ext/grpc)
 
@@ -771,6 +718,5 @@
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/boringssl/crypto/x509)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/boringssl/crypto/x509v3)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/boringssl/ssl)
-  PHP_ADD_BUILD_DIR($ext_builddir/third_party/cares/cares)
   PHP_ADD_BUILD_DIR($ext_builddir/third_party/nanopb)
 fi
diff --git a/package.xml b/package.xml
index fe50a96..0a655cc 100644
--- a/package.xml
+++ b/package.xml
@@ -10,7 +10,7 @@
   <email>grpc-packages@google.com</email>
   <active>yes</active>
  </lead>
- <date>2017-03-01</date>
+ <date>2017-05-02</date>
  <time>16:06:07</time>
  <version>
   <release>1.3.1</release>
@@ -22,8 +22,7 @@
  </stability>
  <license>BSD</license>
  <notes>
-- Added arg info macros #9751
-- Updated codegen to be consistent with protobuf #9492
+- gRPC Core 1.3 uptake
  </notes>
  <contents>
   <dir baseinstalldir="/" name="/">
@@ -1027,79 +1026,6 @@
     <file baseinstalldir="/" name="third_party/boringssl/ssl/tls13_server.c" role="src" />
     <file baseinstalldir="/" name="third_party/boringssl/ssl/tls_method.c" role="src" />
     <file baseinstalldir="/" name="third_party/boringssl/ssl/tls_record.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_data.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_dns.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_getenv.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_getopt.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_inet_net_pton.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_iphlpapi.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_ipv6.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_library_init.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_llist.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_nowarn.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_platform.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_private.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_rules.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_setup.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_strcasecmp.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_strdup.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_version.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/bitncmp.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/config-win32.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/setup_once.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/ares_build.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/config_linux/ares_config.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/config_darwin/ares_config.h" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares__close_sockets.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares__get_hostent.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares__read_line.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares__timeval.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_cancel.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_create_query.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_data.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_destroy.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_expand_name.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_expand_string.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_fds.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_free_hostent.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_free_string.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_getenv.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_gethostbyaddr.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_gethostbyname.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_getnameinfo.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_getopt.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_getsock.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_init.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_library_init.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_llist.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_mkquery.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_nowarn.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_options.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_parse_a_reply.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_parse_aaaa_reply.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_parse_mx_reply.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_parse_naptr_reply.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_parse_ns_reply.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_parse_ptr_reply.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_parse_soa_reply.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_parse_srv_reply.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_parse_txt_reply.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_platform.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_process.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_query.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_search.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_send.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_strcasecmp.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_strdup.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_strerror.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_timeout.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_version.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/ares_writev.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/bitncmp.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/inet_net_pton.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/inet_ntop.c" role="src" />
-    <file baseinstalldir="/" name="third_party/cares/cares/windows_port.c" role="src" />
   </dir>
  </contents>
  <dependencies>
@@ -1415,5 +1341,21 @@
 - Updated codegen to be consistent with protobuf #9492
    </notes>
   </release>
+  <release>
+   <version>
+    <release>1.2.0</release>
+    <api>1.2.0</api>
+   </version>
+   <stability>
+    <release>stable</release>
+    <api>stable</api>
+   </stability>
+   <date>2017-03-20</date>
+   <license>BSD</license>
+   <notes>
+- Added arg info macros #9751
+- Updated codegen to be consistent with protobuf #9492
+   </notes>
+  </release>
  </changelog>
 </package>
diff --git a/templates/config.m4.template b/templates/config.m4.template
index 13ff738..38d86e6 100644
--- a/templates/config.m4.template
+++ b/templates/config.m4.template
@@ -10,8 +10,6 @@
     PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/include)
     PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/src/php/ext/grpc)
     PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/boringssl/include)
-    PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/cares)
-    PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/cares/cares)
 
     LIBS="-lpthread $LIBS"
 
@@ -23,10 +21,8 @@
 
     case $host in
       *darwin*)
-        PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/cares/config_darwin)
         ;;
       *)
-        PHP_ADD_INCLUDE(PHP_EXT_SRCDIR()/third_party/cares/config_linux)
         PHP_ADD_LIBRARY(rt,,GRPC_SHARED_LIBADD)
         PHP_ADD_LIBRARY(rt)
         ;;
@@ -46,7 +42,7 @@
       , $ext_shared, , -Wall -Werror ${"\\"}
       -Wno-parentheses-equality -Wno-unused-value -std=c11 ${"\\"}
       -fvisibility=hidden -DOPENSSL_NO_ASM -D_GNU_SOURCE -DWIN32_LEAN_AND_MEAN ${"\\"}
-      -D_HAS_EXCEPTIONS=0 -DNOMINMAX)
+      -D_HAS_EXCEPTIONS=0 -DNOMINMAX -DGRPC_ARES=0)
 
     PHP_ADD_BUILD_DIR($ext_builddir/src/php/ext/grpc)
   <%
diff --git a/templates/package.xml.template b/templates/package.xml.template
index 8655cfa..463931b 100644
--- a/templates/package.xml.template
+++ b/templates/package.xml.template
@@ -12,7 +12,7 @@
     <email>grpc-packages@google.com</email>
     <active>yes</active>
    </lead>
-   <date>2017-03-01</date>
+   <date>2017-05-02</date>
    <time>16:06:07</time>
    <version>
     <release>${settings.php_version.php()}</release>
@@ -24,8 +24,7 @@
    </stability>
    <license>BSD</license>
    <notes>
-  - Added arg info macros #9751
-  - Updated codegen to be consistent with protobuf #9492
+  - gRPC Core 1.3 uptake
    </notes>
    <contents>
     <dir baseinstalldir="/" name="/">
@@ -358,5 +357,21 @@
   - Updated codegen to be consistent with protobuf #9492
      </notes>
     </release>
+    <release>
+     <version>
+      <release>1.2.0</release>
+      <api>1.2.0</api>
+     </version>
+     <stability>
+      <release>stable</release>
+      <api>stable</api>
+     </stability>
+     <date>2017-03-20</date>
+     <license>BSD</license>
+     <notes>
+  - Added arg info macros #9751
+  - Updated codegen to be consistent with protobuf #9492
+     </notes>
+    </release>
    </changelog>
   </package>