Change version to 1.29.2-dev
diff --git a/version.go b/version.go
index ca5d55f..18d61a1 100644
--- a/version.go
+++ b/version.go
@@ -19,4 +19,4 @@
 package grpc
 
 // Version is the current grpc version.
-const Version = "1.29.1"
+const Version = "1.29.2-dev"