diff --git a/android-interop-testing/app/build.gradle b/android-interop-testing/app/build.gradle
index 7e4e1e10c6..56e461c5a8 100644
--- a/android-interop-testing/app/build.gradle
+++ b/android-interop-testing/app/build.gradle
@@ -32,7 +32,7 @@ protobuf {
     }
     plugins {
         grpc {
-            artifact = 'io.grpc:protoc-gen-grpc-java:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+            artifact = 'io.grpc:protoc-gen-grpc-java:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
         }
     }
     generateProtoTasks {
@@ -58,10 +58,10 @@ dependencies {
     compile 'com.android.support:appcompat-v7:22.1.1'
     compile 'com.google.android.gms:play-services-base:7.3.0'
     // You need to build grpc-java to obtain these libraries below.
-    compile 'io.grpc:grpc-protobuf-nano:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
-    compile 'io.grpc:grpc-okhttp:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
-    compile 'io.grpc:grpc-stub:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
-    compile 'io.grpc:grpc-testing:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+    compile 'io.grpc:grpc-protobuf-nano:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+    compile 'io.grpc:grpc-okhttp:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+    compile 'io.grpc:grpc-stub:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+    compile 'io.grpc:grpc-testing:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
     compile 'javax.annotation:javax.annotation-api:1.2'
 }
 
diff --git a/benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/BenchmarkServiceGrpc.java b/benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/BenchmarkServiceGrpc.java
index a1904f5541..74bd337f7c 100644
--- a/benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/BenchmarkServiceGrpc.java
+++ b/benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/BenchmarkServiceGrpc.java
@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: services.proto")
 public final class BenchmarkServiceGrpc {
 
diff --git a/benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/WorkerServiceGrpc.java b/benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/WorkerServiceGrpc.java
index 73b6e39271..9d60fd1653 100644
--- a/benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/WorkerServiceGrpc.java
+++ b/benchmarks/src/generated/main/grpc/io/grpc/benchmarks/proto/WorkerServiceGrpc.java
@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: services.proto")
 public final class WorkerServiceGrpc {
 
diff --git a/build.gradle b/build.gradle
index bdcbb8412f..599f44a74c 100644
--- a/build.gradle
+++ b/build.gradle
@@ -29,7 +29,7 @@ subprojects {
     }
 
     group = "io.grpc"
-    version = "1.3.0-SNAPSHOT" // CURRENT_GRPC_VERSION
+    version = "1.4.0-SNAPSHOT" // CURRENT_GRPC_VERSION
 
     sourceCompatibility = 1.6
     targetCompatibility = 1.6
diff --git a/compiler/src/test/golden/TestService.java.txt b/compiler/src/test/golden/TestService.java.txt
index f0bfbae10b..455a2d7c28 100644
--- a/compiler/src/test/golden/TestService.java.txt
+++ b/compiler/src/test/golden/TestService.java.txt
@@ -21,7 +21,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: test.proto")
 public final class TestServiceGrpc {
 
diff --git a/compiler/src/testLite/golden/TestService.java.txt b/compiler/src/testLite/golden/TestService.java.txt
index c3eee3e589..565a1094f8 100644
--- a/compiler/src/testLite/golden/TestService.java.txt
+++ b/compiler/src/testLite/golden/TestService.java.txt
@@ -21,7 +21,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: test.proto")
 public final class TestServiceGrpc {
 
diff --git a/compiler/src/testNano/golden/TestService.java.txt b/compiler/src/testNano/golden/TestService.java.txt
index 14603d72b0..fe1cf9b447 100644
--- a/compiler/src/testNano/golden/TestService.java.txt
+++ b/compiler/src/testNano/golden/TestService.java.txt
@@ -23,7 +23,7 @@ import java.io.IOException;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: test.proto")
 public final class TestServiceGrpc {
 
diff --git a/examples/android/helloworld/app/build.gradle b/examples/android/helloworld/app/build.gradle
index 2f6da698c3..192208c485 100644
--- a/examples/android/helloworld/app/build.gradle
+++ b/examples/android/helloworld/app/build.gradle
@@ -34,7 +34,7 @@ protobuf {
             artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
         }
         grpc {
-            artifact = 'io.grpc:protoc-gen-grpc-java:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+            artifact = 'io.grpc:protoc-gen-grpc-java:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
         }
     }
     generateProtoTasks {
@@ -54,8 +54,8 @@ dependencies {
     compile 'com.android.support:appcompat-v7:22.1.1'
 
     // You need to build grpc-java to obtain these libraries below.
-    compile 'io.grpc:grpc-okhttp:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
-    compile 'io.grpc:grpc-protobuf-lite:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
-    compile 'io.grpc:grpc-stub:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+    compile 'io.grpc:grpc-okhttp:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+    compile 'io.grpc:grpc-protobuf-lite:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+    compile 'io.grpc:grpc-stub:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
     compile 'javax.annotation:javax.annotation-api:1.2'
 }
diff --git a/examples/android/routeguide/app/build.gradle b/examples/android/routeguide/app/build.gradle
index b369d07868..1a6117f90c 100644
--- a/examples/android/routeguide/app/build.gradle
+++ b/examples/android/routeguide/app/build.gradle
@@ -32,7 +32,7 @@ protobuf {
             artifact = "com.google.protobuf:protoc-gen-javalite:3.0.0"
         }
         grpc {
-            artifact = 'io.grpc:protoc-gen-grpc-java:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+            artifact = 'io.grpc:protoc-gen-grpc-java:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
         }
     }
     generateProtoTasks {
@@ -52,8 +52,8 @@ dependencies {
     compile 'com.android.support:appcompat-v7:23.+'
 
     // You need to build grpc-java to obtain these libraries below.
-    compile 'io.grpc:grpc-okhttp:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
-    compile 'io.grpc:grpc-protobuf-lite:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
-    compile 'io.grpc:grpc-stub:1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+    compile 'io.grpc:grpc-okhttp:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+    compile 'io.grpc:grpc-protobuf-lite:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+    compile 'io.grpc:grpc-stub:1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
     compile 'javax.annotation:javax.annotation-api:1.2'
 }
diff --git a/examples/build.gradle b/examples/build.gradle
index 411493be16..3b1a860d5d 100644
--- a/examples/build.gradle
+++ b/examples/build.gradle
@@ -22,7 +22,7 @@ repositories {
 
 // Feel free to delete the comment at the next line. It is just for safely
 // updating the version in our release process.
-def grpcVersion = '1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+def grpcVersion = '1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
 
 dependencies {
   compile "io.grpc:grpc-netty:${grpcVersion}"
diff --git a/examples/pom.xml b/examples/pom.xml
index bf1d46f680..fbc1eaace9 100644
--- a/examples/pom.xml
+++ b/examples/pom.xml
@@ -6,11 +6,11 @@
   <packaging>jar</packaging>
   <!-- Feel free to delete the comment at the end of these lines. It is just
        for safely updating the version in our release process. -->
-  <version>1.3.0-SNAPSHOT</version><!-- CURRENT_GRPC_VERSION -->
+  <version>1.4.0-SNAPSHOT</version><!-- CURRENT_GRPC_VERSION -->
   <name>examples</name>
   <url>http://maven.apache.org</url>
   <properties>
-    <grpc.version>1.3.0-SNAPSHOT</grpc.version><!-- CURRENT_GRPC_VERSION -->
+    <grpc.version>1.4.0-SNAPSHOT</grpc.version><!-- CURRENT_GRPC_VERSION -->
   </properties>
   <dependencies>
     <dependency>
diff --git a/examples/thrift/build.gradle b/examples/thrift/build.gradle
index 6cd2d76d5a..a0aea8896d 100644
--- a/examples/thrift/build.gradle
+++ b/examples/thrift/build.gradle
@@ -12,7 +12,7 @@ repositories {
 
 // Feel free to delete the comment at the next line. It is just for safely
 // updating the version in our release process.
-def grpcVersion = '1.3.0-SNAPSHOT' // CURRENT_GRPC_VERSION
+def grpcVersion = '1.4.0-SNAPSHOT' // CURRENT_GRPC_VERSION
 
 dependencies {
   compile "io.grpc:grpc-stub:${grpcVersion}"
diff --git a/grpclb/src/generated/main/grpc/io/grpc/grpclb/LoadBalancerGrpc.java b/grpclb/src/generated/main/grpc/io/grpc/grpclb/LoadBalancerGrpc.java
index 05a8b6bc32..31ab3b03b0 100644
--- a/grpclb/src/generated/main/grpc/io/grpc/grpclb/LoadBalancerGrpc.java
+++ b/grpclb/src/generated/main/grpc/io/grpc/grpclb/LoadBalancerGrpc.java
@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: load_balancer.proto")
 public final class LoadBalancerGrpc {
 
diff --git a/services/src/generated/main/grpc/io/grpc/health/v1/HealthGrpc.java b/services/src/generated/main/grpc/io/grpc/health/v1/HealthGrpc.java
index c6d634a5c6..898f044dd1 100644
--- a/services/src/generated/main/grpc/io/grpc/health/v1/HealthGrpc.java
+++ b/services/src/generated/main/grpc/io/grpc/health/v1/HealthGrpc.java
@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: health.proto")
 public final class HealthGrpc {
 
diff --git a/services/src/generated/main/grpc/io/grpc/instrumentation/v1alpha/MonitoringGrpc.java b/services/src/generated/main/grpc/io/grpc/instrumentation/v1alpha/MonitoringGrpc.java
index 66caff5069..1acc0ae322 100644
--- a/services/src/generated/main/grpc/io/grpc/instrumentation/v1alpha/MonitoringGrpc.java
+++ b/services/src/generated/main/grpc/io/grpc/instrumentation/v1alpha/MonitoringGrpc.java
@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: grpc/instrumentation/v1alpha/monitoring.proto")
 public final class MonitoringGrpc {
 
diff --git a/services/src/generated/main/grpc/io/grpc/reflection/v1alpha/ServerReflectionGrpc.java b/services/src/generated/main/grpc/io/grpc/reflection/v1alpha/ServerReflectionGrpc.java
index 27b0711464..9e510c206f 100644
--- a/services/src/generated/main/grpc/io/grpc/reflection/v1alpha/ServerReflectionGrpc.java
+++ b/services/src/generated/main/grpc/io/grpc/reflection/v1alpha/ServerReflectionGrpc.java
@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: io/grpc/reflection/v1alpha/reflection.proto")
 public final class ServerReflectionGrpc {
 
diff --git a/services/src/generated/test/grpc/io/grpc/reflection/testing/AnotherDynamicServiceGrpc.java b/services/src/generated/test/grpc/io/grpc/reflection/testing/AnotherDynamicServiceGrpc.java
index c14bc0cbcf..31f7283ba7 100644
--- a/services/src/generated/test/grpc/io/grpc/reflection/testing/AnotherDynamicServiceGrpc.java
+++ b/services/src/generated/test/grpc/io/grpc/reflection/testing/AnotherDynamicServiceGrpc.java
@@ -21,7 +21,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: io/grpc/reflection/testing/dynamic_reflection_test.proto")
 public final class AnotherDynamicServiceGrpc {
 
diff --git a/services/src/generated/test/grpc/io/grpc/reflection/testing/DynamicServiceGrpc.java b/services/src/generated/test/grpc/io/grpc/reflection/testing/DynamicServiceGrpc.java
index 4d1230838e..234b7fe5df 100644
--- a/services/src/generated/test/grpc/io/grpc/reflection/testing/DynamicServiceGrpc.java
+++ b/services/src/generated/test/grpc/io/grpc/reflection/testing/DynamicServiceGrpc.java
@@ -21,7 +21,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: io/grpc/reflection/testing/dynamic_reflection_test.proto")
 public final class DynamicServiceGrpc {
 
diff --git a/services/src/generated/test/grpc/io/grpc/reflection/testing/ReflectableServiceGrpc.java b/services/src/generated/test/grpc/io/grpc/reflection/testing/ReflectableServiceGrpc.java
index 0ceda32702..5d5b156898 100644
--- a/services/src/generated/test/grpc/io/grpc/reflection/testing/ReflectableServiceGrpc.java
+++ b/services/src/generated/test/grpc/io/grpc/reflection/testing/ReflectableServiceGrpc.java
@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: io/grpc/reflection/testing/reflection_test.proto")
 public final class ReflectableServiceGrpc {
 
diff --git a/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/MetricsServiceGrpc.java b/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/MetricsServiceGrpc.java
index e1f8ba49eb..8f217a5ae6 100644
--- a/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/MetricsServiceGrpc.java
+++ b/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/MetricsServiceGrpc.java
@@ -18,7 +18,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
 /**
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: io/grpc/testing/integration/metrics.proto")
 public final class MetricsServiceGrpc {
 
diff --git a/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/ReconnectServiceGrpc.java b/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/ReconnectServiceGrpc.java
index 5ac18629f7..a64d76aafc 100644
--- a/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/ReconnectServiceGrpc.java
+++ b/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/ReconnectServiceGrpc.java
@@ -21,7 +21,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: io/grpc/testing/integration/test.proto")
 public final class ReconnectServiceGrpc {
 
diff --git a/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/TestServiceGrpc.java b/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/TestServiceGrpc.java
index 3cc17f5ce9..688cf89e0b 100644
--- a/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/TestServiceGrpc.java
+++ b/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/TestServiceGrpc.java
@@ -22,7 +22,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: io/grpc/testing/integration/test.proto")
 public final class TestServiceGrpc {
 
diff --git a/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/UnimplementedServiceGrpc.java b/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/UnimplementedServiceGrpc.java
index d71547a417..cfdd9bfdff 100644
--- a/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/UnimplementedServiceGrpc.java
+++ b/testing-proto/src/generated/main/grpc/io/grpc/testing/integration/UnimplementedServiceGrpc.java
@@ -22,7 +22,7 @@ import static io.grpc.stub.ServerCalls.asyncUnimplementedStreamingCall;
  * </pre>
  */
 @javax.annotation.Generated(
-    value = "by gRPC proto compiler (version 1.3.0-SNAPSHOT)",
+    value = "by gRPC proto compiler (version 1.4.0-SNAPSHOT)",
     comments = "Source: io/grpc/testing/integration/test.proto")
 public final class UnimplementedServiceGrpc {