Master is now 1.1.0-dev.
diff --git a/src/python/grpcio/grpc_version.py b/src/python/grpcio/grpc_version.py
index d1e2d41..ea38526 100644
--- a/src/python/grpcio/grpc_version.py
+++ b/src/python/grpcio/grpc_version.py
@@ -29,4 +29,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio/grpc_version.py.template`!!!
 
-VERSION='1.0.0rc1'
+VERSION='1.1.0.dev0'