diff --git a/CMakeLists.txt b/CMakeLists.txt
index 51c272998f314bfc75da6d919885121c0a604fc6..f73da9109eba1cf670fa6a6200182224f485493f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -39,7 +39,7 @@
 cmake_minimum_required(VERSION 2.8)
 
 set(PACKAGE_NAME      "grpc")
-set(PACKAGE_VERSION   "1.3.1")
+set(PACKAGE_VERSION   "1.3.2-pre1")
 set(PACKAGE_STRING    "${PACKAGE_NAME} ${PACKAGE_VERSION}")
 set(PACKAGE_TARNAME   "${PACKAGE_NAME}-${PACKAGE_VERSION}")
 set(PACKAGE_BUGREPORT "https://github.com/grpc/grpc/issues/")
diff --git a/Makefile b/Makefile
index 293a45902df9417f97ed846e7e17b7f735fc93a8..5ec70e6416c08f7e7655762ffc38da4466229803 100644
--- a/Makefile
+++ b/Makefile
@@ -420,8 +420,8 @@ Q = @
 endif
 
 CORE_VERSION = 3.0.0
-CPP_VERSION = 1.3.1
-CSHARP_VERSION = 1.3.1
+CPP_VERSION = 1.3.2-pre1
+CSHARP_VERSION = 1.3.2-pre1
 
 CPPFLAGS_NO_ARCH += $(addprefix -I, $(INCLUDES)) $(addprefix -D, $(DEFINES))
 CPPFLAGS += $(CPPFLAGS_NO_ARCH) $(ARCH_FLAGS)
diff --git a/build.yaml b/build.yaml
index 37e1725124252bb755c0ddd662130899e2589eb9..3542f249ca4dea1a190dba47e6c4cb1a5ba6cf58 100644
--- a/build.yaml
+++ b/build.yaml
@@ -14,7 +14,7 @@ settings:
   '#10': See the expand_version.py for all the quirks here
   core_version: 3.0.0
   g_stands_for: gentle
-  version: 1.3.1
+  version: 1.3.2-pre1
 filegroups:
 - name: census
   public_headers:
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 561db476c29d50929170fd9c0692c31630ae1b38..625743d1902a3f3f0f62adc38e24e4199edf20ff 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -37,7 +37,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC-Core'
-  version = '1.3.1'
+  version = '1.3.2-pre1'
   s.version  = version
   s.summary  = 'Core cross-platform gRPC library, written in C'
   s.homepage = 'http://www.grpc.io'
diff --git a/gRPC-ProtoRPC.podspec b/gRPC-ProtoRPC.podspec
index 4a83345237b2a8ac7319bd830ee4da2f21e6f3ab..d387ec6a38b53242121f8aa133165a27c118e75e 100644
--- a/gRPC-ProtoRPC.podspec
+++ b/gRPC-ProtoRPC.podspec
@@ -36,7 +36,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC-ProtoRPC'
-  version = '1.3.1'
+  version = '1.3.2-pre1'
   s.version  = version
   s.summary  = 'RPC library for Protocol Buffers, based on gRPC'
   s.homepage = 'http://www.grpc.io'
diff --git a/gRPC-RxLibrary.podspec b/gRPC-RxLibrary.podspec
index 83ecb613e1c7ffad2a79cc9c4c7d42d9659152a3..03a04e15e80513db50b96ed2d2174925b312716d 100644
--- a/gRPC-RxLibrary.podspec
+++ b/gRPC-RxLibrary.podspec
@@ -36,7 +36,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC-RxLibrary'
-  version = '1.3.1'
+  version = '1.3.2-pre1'
   s.version  = version
   s.summary  = 'Reactive Extensions library for iOS/OSX.'
   s.homepage = 'http://www.grpc.io'
diff --git a/gRPC.podspec b/gRPC.podspec
index 29d3cb23b2b8da4bd6ab6cbea7ea0954fd828c93..e633f694e8f59c4d6f58be979ee118f7eee30c71 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -35,7 +35,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC'
-  version = '1.3.1'
+  version = '1.3.2-pre1'
   s.version  = version
   s.summary  = 'gRPC client library for iOS/OSX'
   s.homepage = 'http://www.grpc.io'
diff --git a/package.json b/package.json
index 51b6863ae34abb84964338f2a528509788deada2..e7a193473318cda9b3ec2dd4f8b38c1db58c491c 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "grpc",
-  "version": "1.3.1",
+  "version": "1.3.2-pre1",
   "author": "Google Inc.",
   "description": "gRPC Library for Node",
   "homepage": "http://www.grpc.io/",
diff --git a/package.xml b/package.xml
index 0a655ccc8af69cefadb0974d8fb64818137e9c38..6886e390fc344b39f8948949557fc37a2a3268d9 100644
--- a/package.xml
+++ b/package.xml
@@ -13,8 +13,8 @@
  <date>2017-05-02</date>
  <time>16:06:07</time>
  <version>
-  <release>1.3.1</release>
-  <api>1.3.1</api>
+  <release>1.3.2RC1</release>
+  <api>1.3.2RC1</api>
  </version>
  <stability>
   <release>beta</release>
diff --git a/src/cpp/common/version_cc.cc b/src/cpp/common/version_cc.cc
index de0bafaff5e189e53436b0c18c8aa409a6a53286..4ff046ab18adfe85eaaf0e85e2a4b2fccff99688 100644
--- a/src/cpp/common/version_cc.cc
+++ b/src/cpp/common/version_cc.cc
@@ -37,5 +37,5 @@
 #include <grpc++/grpc++.h>
 
 namespace grpc {
-grpc::string Version() { return "1.3.1"; }
+grpc::string Version() { return "1.3.2-pre1"; }
 }
diff --git a/src/csharp/Grpc.Core/Version.csproj.include b/src/csharp/Grpc.Core/Version.csproj.include
index 25d3ca2e3b40f53d94e1d47c7b4270081a1b853c..503693bb8a651bcffb03a5ba950fa7d53a09131d 100755
--- a/src/csharp/Grpc.Core/Version.csproj.include
+++ b/src/csharp/Grpc.Core/Version.csproj.include
@@ -1,7 +1,7 @@
 <!-- This file is generated -->
 <Project>
   <PropertyGroup>
-    <GrpcCsharpVersion>1.3.1</GrpcCsharpVersion>
+    <GrpcCsharpVersion>1.3.2-pre1</GrpcCsharpVersion>
     <GoogleProtobufVersion>3.2.0</GoogleProtobufVersion>
   </PropertyGroup>
 </Project>
diff --git a/src/csharp/Grpc.Core/VersionInfo.cs b/src/csharp/Grpc.Core/VersionInfo.cs
index 2376485c68452292773d4ea14edcab16c4cc75ae..fcac3c7e6474d7f0e1d75d9a70a7926715ce6361 100644
--- a/src/csharp/Grpc.Core/VersionInfo.cs
+++ b/src/csharp/Grpc.Core/VersionInfo.cs
@@ -48,11 +48,11 @@ namespace Grpc.Core
         /// <summary>
         /// Current <c>AssemblyFileVersion</c> of gRPC C# assemblies
         /// </summary>
-        public const string CurrentAssemblyFileVersion = "1.3.1.0";
+        public const string CurrentAssemblyFileVersion = "1.3.2.0";
 
         /// <summary>
         /// Current version of gRPC C#
         /// </summary>
-        public const string CurrentVersion = "1.3.1";
+        public const string CurrentVersion = "1.3.2-pre1";
     }
 }
diff --git a/src/csharp/build_packages_dotnetcli.bat b/src/csharp/build_packages_dotnetcli.bat
index 1ed0ffa87c4412cde6931e19210446e03ca55a77..9e837ba166182a1368fa309713fb51f730d5d4d5 100755
--- a/src/csharp/build_packages_dotnetcli.bat
+++ b/src/csharp/build_packages_dotnetcli.bat
@@ -28,7 +28,7 @@
 @rem OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 @rem Current package versions
-set VERSION=1.3.1
+set VERSION=1.3.2-pre1
 
 @rem Adjust the location of nuget.exe
 set NUGET=C:\nuget\nuget.exe
diff --git a/src/csharp/build_packages_dotnetcli.sh b/src/csharp/build_packages_dotnetcli.sh
index 4091ce7f9adf4f5b908cf3ab0d47cb91f46ed8f5..a87673cb51596e8849f61fc751175b3a8c7181af 100755
--- a/src/csharp/build_packages_dotnetcli.sh
+++ b/src/csharp/build_packages_dotnetcli.sh
@@ -70,7 +70,7 @@ dotnet pack --configuration Release --include-symbols --include-source Grpc.Auth
 dotnet pack --configuration Release --include-symbols --include-source Grpc.HealthCheck --output ../../../artifacts
 dotnet pack --configuration Release --include-symbols --include-source Grpc.Reflection --output ../../../artifacts
 
-nuget pack Grpc.nuspec -Version "1.3.1" -OutputDirectory ../../artifacts
-nuget pack Grpc.Tools.nuspec -Version "1.3.1" -OutputDirectory ../../artifacts
+nuget pack Grpc.nuspec -Version "1.3.2-pre1" -OutputDirectory ../../artifacts
+nuget pack Grpc.Tools.nuspec -Version "1.3.2-pre1" -OutputDirectory ../../artifacts
 
 (cd ../../artifacts && zip csharp_nugets_dotnetcli.zip *.nupkg)
diff --git a/src/node/health_check/package.json b/src/node/health_check/package.json
index b94518260f67ec2d720d7d7a750494e8e7716d83..3067f02c6c0bf28e22371eda45b643af568df877 100644
--- a/src/node/health_check/package.json
+++ b/src/node/health_check/package.json
@@ -1,6 +1,6 @@
 {
   "name": "grpc-health-check",
-  "version": "1.3.1",
+  "version": "1.3.2-pre1",
   "author": "Google Inc.",
   "description": "Health check service for use with gRPC",
   "repository": {
@@ -15,7 +15,7 @@
     }
   ],
   "dependencies": {
-    "grpc": "^1.3.1",
+    "grpc": "^1.3.2-pre1",
     "lodash": "^3.9.3",
     "google-protobuf": "^3.0.0"
   },
diff --git a/src/node/tools/package.json b/src/node/tools/package.json
index 4556c127d992609555328ae7d7e9c7a5581f6971..61efa203528ca922547ed340d1e749d093f33d41 100644
--- a/src/node/tools/package.json
+++ b/src/node/tools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "grpc-tools",
-  "version": "1.3.1",
+  "version": "1.3.2-pre1",
   "author": "Google Inc.",
   "description": "Tools for developing with gRPC on Node.js",
   "homepage": "http://www.grpc.io/",
diff --git a/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec b/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec
index 0312a381dce1c38ea802a9487d0e6b641b3fb405..0b7b40adeb17fc4ef7c4b1d9fcfb580efbae04a1 100644
--- a/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec
+++ b/src/objective-c/!ProtoCompiler-gRPCPlugin.podspec
@@ -42,7 +42,7 @@ Pod::Spec.new do |s|
   # exclamation mark ensures that other "regular" pods will be able to find it as it'll be installed
   # before them.
   s.name     = '!ProtoCompiler-gRPCPlugin'
-  v = '1.3.1'
+  v = '1.3.2-pre1'
   s.version  = v
   s.summary  = 'The gRPC ProtoC plugin generates Objective-C files from .proto services.'
   s.description = <<-DESC
diff --git a/src/objective-c/GRPCClient/private/version.h b/src/objective-c/GRPCClient/private/version.h
index 7861e0a733e2c8e9cfc197d0eefd8428c2a3ec67..9cdb7e0518935589283b84d1acbbf7a4c7572e6e 100644
--- a/src/objective-c/GRPCClient/private/version.h
+++ b/src/objective-c/GRPCClient/private/version.h
@@ -38,4 +38,4 @@
 // `tools/buildgen/generate_projects.sh`.
 
 
-#define GRPC_OBJC_VERSION_STRING @"1.3.1"
+#define GRPC_OBJC_VERSION_STRING @"1.3.2-pre1"
diff --git a/src/php/composer.json b/src/php/composer.json
index 0084b94950231bbf2fee151049d2fa1ba38a8aaa..3b7ba4162cb61e3dddbafbc897a2d92d2f11de5d 100644
--- a/src/php/composer.json
+++ b/src/php/composer.json
@@ -2,7 +2,7 @@
   "name": "grpc/grpc-dev",
   "description": "gRPC library for PHP - for Developement use only",
   "license": "BSD-3-Clause",
-  "version": "1.3.1",
+  "version": "1.3.2",
   "require": {
     "php": ">=5.5.0",
     "google/protobuf": "^v3.1.0"
diff --git a/src/python/grpcio/grpc_version.py b/src/python/grpcio/grpc_version.py
index 495af70240f927021b0ea2dfd42e7fcd3321d33e..89dabad80722c1a7be901b78902bb6c19cecc65b 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='1.3.1'
+VERSION='1.3.2rc1'
diff --git a/src/python/grpcio_health_checking/grpc_version.py b/src/python/grpcio_health_checking/grpc_version.py
index c0dae962d02bc86428394db0c0b4e84c855e2d04..aebb6a9e4f5a2ea6b9dc12bd668196b7be02adfc 100644
--- a/src/python/grpcio_health_checking/grpc_version.py
+++ b/src/python/grpcio_health_checking/grpc_version.py
@@ -29,4 +29,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_health_checking/grpc_version.py.template`!!!
 
-VERSION='1.3.1'
+VERSION='1.3.2rc1'
diff --git a/src/python/grpcio_reflection/grpc_version.py b/src/python/grpcio_reflection/grpc_version.py
index bc9fb1f4afbe172cd2d839ba19c716ec045c8542..c3a3587771650e36b27b1092d636f4cc506b09ec 100644
--- a/src/python/grpcio_reflection/grpc_version.py
+++ b/src/python/grpcio_reflection/grpc_version.py
@@ -29,4 +29,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_reflection/grpc_version.py.template`!!!
 
-VERSION='1.3.1'
+VERSION='1.3.2rc1'
diff --git a/src/python/grpcio_tests/grpc_version.py b/src/python/grpcio_tests/grpc_version.py
index 1a2281b177f740cf309ff2aa64b8952b9fa57309..32dc29b5f74173b912de6a9b34ec66e86a920510 100644
--- a/src/python/grpcio_tests/grpc_version.py
+++ b/src/python/grpcio_tests/grpc_version.py
@@ -29,4 +29,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/src/python/grpcio_tests/grpc_version.py.template`!!!
 
-VERSION='1.3.1'
+VERSION='1.3.2rc1'
diff --git a/src/ruby/lib/grpc/version.rb b/src/ruby/lib/grpc/version.rb
index 1e723a935e332ad14391639431c02529332e4c7c..4a9f170f36a60b317179026ed224b3046d0e68ed 100644
--- a/src/ruby/lib/grpc/version.rb
+++ b/src/ruby/lib/grpc/version.rb
@@ -29,5 +29,5 @@
 
 # GRPC contains the General RPC module.
 module GRPC
-  VERSION = '1.3.1'
+  VERSION = '1.3.2.pre1'
 end
diff --git a/src/ruby/tools/version.rb b/src/ruby/tools/version.rb
index d9109372afa47430d0c0fcdd858e732cd52f57be..e7f1525a9594d9d7b0592c7a3a6155c56fd61225 100644
--- a/src/ruby/tools/version.rb
+++ b/src/ruby/tools/version.rb
@@ -29,6 +29,6 @@
 
 module GRPC
   module Tools
-    VERSION = '1.3.1'
+    VERSION = '1.3.2.pre1'
   end
 end
diff --git a/tools/distrib/python/grpcio_tools/grpc_version.py b/tools/distrib/python/grpcio_tools/grpc_version.py
index 9a12f6b84c398515d344eb67d66425b646effa0d..e833bde0dc5adfc9bac24d487b96fca211d7758f 100644
--- a/tools/distrib/python/grpcio_tools/grpc_version.py
+++ b/tools/distrib/python/grpcio_tools/grpc_version.py
@@ -29,4 +29,4 @@
 
 # AUTO-GENERATED FROM `$REPO_ROOT/templates/tools/distrib/python/grpcio_tools/grpc_version.py.template`!!!
 
-VERSION='1.3.1'
+VERSION='1.3.2rc1'
diff --git a/tools/doxygen/Doxyfile.c++ b/tools/doxygen/Doxyfile.c++
index 8fa5b3ede59496b683c938dc60806d679b57a53a..9dc23e8a0413a456319119a361d921ad80dd8207 100644
--- a/tools/doxygen/Doxyfile.c++
+++ b/tools/doxygen/Doxyfile.c++
@@ -40,7 +40,7 @@ PROJECT_NAME           = "GRPC C++"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.3.1
+PROJECT_NUMBER         = 1.3.2-pre1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
diff --git a/tools/doxygen/Doxyfile.c++.internal b/tools/doxygen/Doxyfile.c++.internal
index d620f99ff1c5ad9623290a5ea35856740e6a844a..f244c8c8742ccc52cfdc567612ba8a95b3d215b5 100644
--- a/tools/doxygen/Doxyfile.c++.internal
+++ b/tools/doxygen/Doxyfile.c++.internal
@@ -40,7 +40,7 @@ PROJECT_NAME           = "GRPC C++"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = 1.3.1
+PROJECT_NUMBER         = 1.3.2-pre1
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a