diff --git a/BUILD b/BUILD
index 0e8b058cb5febe0a4bfe3c5f8a184b03f7e3049e..680722ac66b8f612e0f04b79da4877d7bf077611 100644
--- a/BUILD
+++ b/BUILD
@@ -41,7 +41,7 @@ g_stands_for = "green"
 
 core_version = "3.0.0-dev"
 
-version = "1.2.2"
+version = "1.2.3"
 
 grpc_cc_library(
     name = "gpr",
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 4496d37bd6a06f2edeb24facd91482ff12055c38..e09f7297333bb20102cbd5f8461374c6c6b64d55 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -42,7 +42,7 @@
 cmake_minimum_required(VERSION 2.8)
 
 set(PACKAGE_NAME      "grpc")
-set(PACKAGE_VERSION   "1.2.2")
+set(PACKAGE_VERSION   "1.2.3")
 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 00a99ab964f8fb077b06e5baf3ed02e0f4e304b1..52e80b01879d286aaa144aea3e5f54ca9b097269 100644
--- a/Makefile
+++ b/Makefile
@@ -412,8 +412,8 @@ Q = @
 endif
 
 CORE_VERSION = 3.0.0-dev
-CPP_VERSION = 1.2.2
-CSHARP_VERSION = 1.2.2
+CPP_VERSION = 1.2.3
+CSHARP_VERSION = 1.2.3
 
 CPPFLAGS_NO_ARCH += $(addprefix -I, $(INCLUDES)) $(addprefix -D, $(DEFINES))
 CPPFLAGS += $(CPPFLAGS_NO_ARCH) $(ARCH_FLAGS)
diff --git a/build.yaml b/build.yaml
index 8df00f2c4bdfa137abe69aa46b76ff01b92faf27..ac183a91b56e7908ce863d37a1f3e950c4197e8e 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-dev
   g_stands_for: green
-  version: 1.2.2
+  version: 1.2.3
 filegroups:
 - name: census
   public_headers:
diff --git a/gRPC-Core.podspec b/gRPC-Core.podspec
index 51e8fdfa02e42645a3373cb9d65d44f193667fef..9e6218d031cc2cf317b55befb59f83f322285479 100644
--- a/gRPC-Core.podspec
+++ b/gRPC-Core.podspec
@@ -37,7 +37,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC-Core'
-  version = '1.2.2'
+  version = '1.2.3'
   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 86c5181922746c0b6e1283b2b46470172e3ffbb4..a4b56fe10543610f23927ddbbf924761a77c2718 100644
--- a/gRPC-ProtoRPC.podspec
+++ b/gRPC-ProtoRPC.podspec
@@ -36,7 +36,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC-ProtoRPC'
-  version = '1.2.2'
+  version = '1.2.3'
   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 ba365ceaa04358fb602043117f86c9c80394dc4d..a567e6aa0f523089c3b3777a2087b94e2b256282 100644
--- a/gRPC-RxLibrary.podspec
+++ b/gRPC-RxLibrary.podspec
@@ -36,7 +36,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC-RxLibrary'
-  version = '1.2.2'
+  version = '1.2.3'
   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 b51c4df5dae6198cffdeabee2efd38b0e6636e31..891f9a5aebe03b777bcd250d4edef7809e3597e9 100644
--- a/gRPC.podspec
+++ b/gRPC.podspec
@@ -35,7 +35,7 @@
 
 Pod::Spec.new do |s|
   s.name     = 'gRPC'
-  version = '1.2.2'
+  version = '1.2.3'
   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 b4503d00dbaf8f011b9eb9ff8f590d47bc271bc7..f2646c0d6d1b93c35c133b29fee4b1bfbece8bb8 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "grpc",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "author": "Google Inc.",
   "description": "gRPC Library for Node",
   "homepage": "http://www.grpc.io/",
diff --git a/package.xml b/package.xml
index 6ff9a9c9cc457064a137b632011c41d084bc2613..f120d57a6d149b96badcbedc587ddae390f900b2 100644
--- a/package.xml
+++ b/package.xml
@@ -13,8 +13,8 @@
  <date>2017-03-01</date>
  <time>16:06:07</time>
  <version>
-  <release>1.2.2</release>
-  <api>1.2.2</api>
+  <release>1.2.3</release>
+  <api>1.2.3</api>
  </version>
  <stability>
   <release>beta</release>
diff --git a/src/cpp/common/version_cc.cc b/src/cpp/common/version_cc.cc
index 6405fbcbd7ddb6050328656109e3c3fe787cc009..cda07999244f7fc7bcef74051fa5b2a9d221c0ce 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 "1.2.2"; }
+grpc::string Version() { return "1.2.3"; }
 }
diff --git a/src/csharp/Grpc.Auth/project.json b/src/csharp/Grpc.Auth/project.json
index 31022e65bdf3570e8a07735f7eb570887d3c25f5..45ee3a3112bdb5bceeabde2150d031044fb3b3ef 100644
--- a/src/csharp/Grpc.Auth/project.json
+++ b/src/csharp/Grpc.Auth/project.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.2.2",
+  "version": "1.2.3",
   "title": "gRPC C# Auth",
   "authors": [ "Google Inc." ],
   "copyright": "Copyright 2015, Google Inc.",
@@ -21,7 +21,7 @@
     }
   },
   "dependencies": {
-    "Grpc.Core": "1.2.2",
+    "Grpc.Core": "1.2.3",
     "Google.Apis.Auth": "1.21.0"
   },
   "frameworks": {
diff --git a/src/csharp/Grpc.Core.Testing/project.json b/src/csharp/Grpc.Core.Testing/project.json
index 22d728fc15971cb18c4f02d193fa65999259a3d3..40dc57ac76f067ffd35ddede42e19fe697a652ce 100644
--- a/src/csharp/Grpc.Core.Testing/project.json
+++ b/src/csharp/Grpc.Core.Testing/project.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.2.2",
+  "version": "1.2.3",
   "title": "gRPC C# Core Testing",
   "authors": [ "Google Inc." ],
   "copyright": "Copyright 2017, Google Inc.",
@@ -21,7 +21,7 @@
     }
   },
   "dependencies": {
-    "Grpc.Core": "1.2.2"
+    "Grpc.Core": "1.2.3"
   },
   "frameworks": {
     "net45": {
diff --git a/src/csharp/Grpc.Core/VersionInfo.cs b/src/csharp/Grpc.Core/VersionInfo.cs
index d46f863e173ae65417f42db4d69ba4a8500c3bee..c3339ce1a454b04d25d1c5c4d8ae7d454e6f5746 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 = "1.2.2.0";
+        public const string CurrentAssemblyFileVersion = "1.2.3.0";
 
         /// <summary>
         /// Current version of gRPC C#
         /// </summary>
-        public const string CurrentVersion = "1.2.2";
+        public const string CurrentVersion = "1.2.3";
     }
 }
diff --git a/src/csharp/Grpc.Core/project.json b/src/csharp/Grpc.Core/project.json
index 0d56b55fe3033dd5383d982681c8fc23410bb1de..0381b04cf5cbf07286863b7c3001d4a57fe2047d 100644
--- a/src/csharp/Grpc.Core/project.json
+++ b/src/csharp/Grpc.Core/project.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.2.2",
+  "version": "1.2.3",
   "title": "gRPC C# Core",
   "authors": [ "Google Inc." ],
   "copyright": "Copyright 2015, Google Inc.",
diff --git a/src/csharp/Grpc.HealthCheck/project.json b/src/csharp/Grpc.HealthCheck/project.json
index 259d973ff62b87ea4ef6c6b2362c4811f1a09860..4010d5566abcbead24b42d559a57c9f8aae28ff2 100644
--- a/src/csharp/Grpc.HealthCheck/project.json
+++ b/src/csharp/Grpc.HealthCheck/project.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.2.2",
+  "version": "1.2.3",
   "title": "gRPC C# Healthchecking",
   "authors": [ "Google Inc." ],
   "copyright": "Copyright 2015, Google Inc.",
@@ -21,7 +21,7 @@
     }
   },
   "dependencies": {
-    "Grpc.Core": "1.2.2",
+    "Grpc.Core": "1.2.3",
     "Google.Protobuf": "3.2.0"
   },
   "frameworks": {
diff --git a/src/csharp/Grpc.Reflection/project.json b/src/csharp/Grpc.Reflection/project.json
index b40945cad40e65d2bc84cbb27a53133c2adaf511..996aa51512f6f4f5bccda1376bcffab3bc0e5e10 100644
--- a/src/csharp/Grpc.Reflection/project.json
+++ b/src/csharp/Grpc.Reflection/project.json
@@ -1,5 +1,5 @@
 {
-  "version": "1.2.2",
+  "version": "1.2.3",
   "title": "gRPC C# Reflection",
   "authors": [ "Google Inc." ],
   "copyright": "Copyright 2016, Google Inc.",
@@ -21,7 +21,7 @@
     }
   },
   "dependencies": {
-    "Grpc.Core": "1.2.2",
+    "Grpc.Core": "1.2.3",
     "Google.Protobuf": "3.2.0"
   },
   "frameworks": {
diff --git a/src/csharp/build_packages_dotnetcli.bat b/src/csharp/build_packages_dotnetcli.bat
index 51c87246bf0d9605a6ed5f29e5a993fac8b009d5..aa47067d7409d6fde492b017806f57be3592ec61 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=1.2.2
+set VERSION=1.2.3
 set PROTOBUF_VERSION=3.0.0
 
 @rem Adjust the location of nuget.exe
diff --git a/src/csharp/build_packages_dotnetcli.sh b/src/csharp/build_packages_dotnetcli.sh
index 7e7a029fcfd16f19bed445f755c1da2be232f736..b0432f4b18a8ba1cd815cde0443f127aca9313d4 100755
--- a/src/csharp/build_packages_dotnetcli.sh
+++ b/src/csharp/build_packages_dotnetcli.sh
@@ -66,7 +66,7 @@ dotnet pack --configuration Release Grpc.Auth/project.json --output ../../artifa
 dotnet pack --configuration Release Grpc.HealthCheck/project.json --output ../../artifacts
 dotnet pack --configuration Release Grpc.Reflection/project.json --output ../../artifacts
 
-nuget pack Grpc.nuspec -Version "1.2.2" -OutputDirectory ../../artifacts
-nuget pack Grpc.Tools.nuspec -Version "1.2.2" -OutputDirectory ../../artifacts
+nuget pack Grpc.nuspec -Version "1.2.3" -OutputDirectory ../../artifacts
+nuget pack Grpc.Tools.nuspec -Version "1.2.3" -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 61bb83f229a6ba63afceeccb0d1843e7045faa96..5ad59e27e6a59f3e399cf5e417d145aadda8997c 100644
--- a/src/node/health_check/package.json
+++ b/src/node/health_check/package.json
@@ -1,6 +1,6 @@
 {
   "name": "grpc-health-check",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "author": "Google Inc.",
   "description": "Health check service for use with gRPC",
   "repository": {
@@ -15,7 +15,7 @@
     }
   ],
   "dependencies": {
-    "grpc": "^1.2.2",
+    "grpc": "^1.2.3",
     "lodash": "^3.9.3",
     "google-protobuf": "^3.0.0"
   },
diff --git a/src/node/tools/package.json b/src/node/tools/package.json
index 460f2fc857aaa157852195b0df0efad4e8070329..e06775b5bb645461df8d531872ad3dec84fddecb 100644
--- a/src/node/tools/package.json
+++ b/src/node/tools/package.json
@@ -1,6 +1,6 @@
 {
   "name": "grpc-tools",
-  "version": "1.2.2",
+  "version": "1.2.3",
   "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 ca5ad7b2f563ce6d8c70e1813b12201c4565f896..f314d48c8870ec631964ee6d72cb31e4af9efcc2 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 = '1.2.2'
+  v = '1.2.3'
   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 d04f73d31880975857202183c99a09bcc09e5b71..69035cf8add595de51b6acf4b7f93b3964993118 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 @"1.2.2"
+#define GRPC_OBJC_VERSION_STRING @"1.2.3"
diff --git a/src/php/composer.json b/src/php/composer.json
index fa4e3e5990fa9c193a27253cd84adc871bf0dd76..a2f83ec1e00c543ed420d32b7f31e2b79aba6861 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": "1.2.2",
+  "version": "1.2.3",
   "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 caf940273e2f75b3c8e2a209c104e2b9714b2454..0fdb76072b3794ee1d7328cc3d916a4c4ad50c5b 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='1.2.2'
+VERSION='1.2.3'
diff --git a/src/python/grpcio_health_checking/grpc_version.py b/src/python/grpcio_health_checking/grpc_version.py
index 7b7d95daacfd09873d828cff74d22c4a494922a7..d3ac3aa3ef0e7a03fd137445f2a038a9821e9c93 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='1.2.2'
+VERSION='1.2.3'
diff --git a/src/python/grpcio_reflection/grpc_version.py b/src/python/grpcio_reflection/grpc_version.py
index dffabad634f4a347c1b02322fbc41eceabcb7cd3..416910c6ab9011392c4be5ae9e9c241dbf0d8d52 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='1.2.2'
+VERSION='1.2.3'
diff --git a/src/python/grpcio_tests/grpc_version.py b/src/python/grpcio_tests/grpc_version.py
index d31ddd3c221106c9c7d0ca2970c36e040d295684..71495a1075fad9567abdc303ecb9392265e6ce1f 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='1.2.2'
+VERSION='1.2.3'
diff --git a/src/ruby/lib/grpc/version.rb b/src/ruby/lib/grpc/version.rb
index cc25ca10a0ea722a1a7c3ba30e940d9218d02313..51f9ccace9e6dfc649878817b4af19be9566108c 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 = '1.2.2'
+  VERSION = '1.2.3'
 end
diff --git a/src/ruby/tools/version.rb b/src/ruby/tools/version.rb
index 7c7eada243d623d1218b4fd4900bded2b77aad3e..dd07b264d4bdfd886fe8cad6ebf69f8640628de7 100644
--- a/src/ruby/tools/version.rb
+++ b/src/ruby/tools/version.rb
@@ -29,6 +29,6 @@
 
 module GRPC
   module Tools
-    VERSION = '1.2.2'
+    VERSION = '1.2.3'
   end
 end
diff --git a/tools/distrib/python/grpcio_tools/grpc_version.py b/tools/distrib/python/grpcio_tools/grpc_version.py
index a28f2448d4dbadf7e826e83b8b68d26ee655ed8b..32fad56ca4d286fee9098fb2f46f3e7df474c01a 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='1.2.2'
+VERSION='1.2.3'
diff --git a/tools/doxygen/Doxyfile.c++ b/tools/doxygen/Doxyfile.c++
index 70c7f6d5ae8d4e8b1f8a93c5fa34c9a98af4f597..4bb1414e8689ef422c62460e248a52950a7a03d0 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         = 1.2.2
+PROJECT_NUMBER         = 1.2.3
 
 # 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 34d6a59be2057c54050fb640315c5e05731e1bcc..db987191b60e8878151ea63925df5d0e1bbeff77 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         = 1.2.2
+PROJECT_NUMBER         = 1.2.3
 
 # 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