diff --git a/configure.ac b/configure.ac
index d56a7047..bdc72ee6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -12,7 +12,7 @@ AC_PREREQ(2.59)
 # In the SVN trunk, the version should always be the next anticipated release
 # version with the "-pre" suffix.  (We used to use "-SNAPSHOT" but this pushed
 # the size of one file name in the dist tarfile over the 99-char limit.)
-AC_INIT([Protocol Buffers],[3.0.0-beta-2],[protobuf@googlegroups.com],[protobuf])
+AC_INIT([Protocol Buffers],[3.0.0-beta-3],[protobuf@googlegroups.com],[protobuf])
 
 AM_MAINTAINER_MODE([enable])
 
diff --git a/csharp/Google.Protobuf.Tools.nuspec b/csharp/Google.Protobuf.Tools.nuspec
index 2b66b081..e4240dae 100644
--- a/csharp/Google.Protobuf.Tools.nuspec
+++ b/csharp/Google.Protobuf.Tools.nuspec
@@ -5,7 +5,7 @@
     <title>Google Protocol Buffers tools</title>
     <summary>Tools for Protocol Buffers - Google's data interchange format.</summary>
     <description>See project site for more info.</description>
-    <version>3.0.0-beta2</version>
+    <version>3.0.0-beta3</version>
     <authors>Google Inc.</authors>
     <owners>protobuf-packages</owners>
     <licenseUrl>https://github.com/google/protobuf/blob/master/LICENSE</licenseUrl>
@@ -34,4 +34,4 @@
     <file src="..\src\google\protobuf\type.proto" target="tools\google\protobuf" />
     <file src="..\src\google\protobuf\wrappers.proto" target="tools\google\protobuf" />
   </files>
-</package>
\ No newline at end of file
+</package>
diff --git a/csharp/src/Google.Protobuf/Google.Protobuf.nuspec b/csharp/src/Google.Protobuf/Google.Protobuf.nuspec
index 2892b8bf..90e3da3d 100644
--- a/csharp/src/Google.Protobuf/Google.Protobuf.nuspec
+++ b/csharp/src/Google.Protobuf/Google.Protobuf.nuspec
@@ -5,7 +5,7 @@
     <title>Google Protocol Buffers C#</title>
     <summary>C# runtime library for Protocol Buffers - Google's data interchange format.</summary>
     <description>See project site for more info.</description>
-    <version>3.0.0-beta2</version>
+    <version>3.0.0-beta3</version>
     <authors>Google Inc.</authors>
     <owners>protobuf-packages</owners>
     <licenseUrl>https://github.com/google/protobuf/blob/master/LICENSE</licenseUrl>
@@ -51,4 +51,4 @@
     <file src="bin/ReleaseSigned/Google.Protobuf.xml" target="lib/dotnet" />
     <file src="**\*.cs" target="src" />
   </files>
-</package>
\ No newline at end of file
+</package>
diff --git a/csharp/src/Google.Protobuf/Properties/AssemblyInfo.cs b/csharp/src/Google.Protobuf/Properties/AssemblyInfo.cs
index 225ac0dd..0516f18e 100644
--- a/csharp/src/Google.Protobuf/Properties/AssemblyInfo.cs
+++ b/csharp/src/Google.Protobuf/Properties/AssemblyInfo.cs
@@ -64,4 +64,4 @@ using System.Security;
 
 [assembly: AssemblyVersion("3.0.0.0")]
 [assembly: AssemblyFileVersion("3.0.0.0")]
-[assembly: AssemblyInformationalVersion("3.0.0-alpha4")]
+[assembly: AssemblyInformationalVersion("3.0.0-beta3")]
diff --git a/java/core/pom.xml b/java/core/pom.xml
index 74d5ead3..0d4c5c75 100644
--- a/java/core/pom.xml
+++ b/java/core/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.0.0-beta-2</version>
+    <version>3.0.0-beta-3</version>
   </parent>
 
   <artifactId>protobuf-java</artifactId>
diff --git a/java/lite/pom.xml b/java/lite/pom.xml
index 23cb4f78..c403dc09 100644
--- a/java/lite/pom.xml
+++ b/java/lite/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.0.0-beta-2</version>
+    <version>3.0.0-beta-3</version>
   </parent>
 
   <artifactId>protobuf-lite</artifactId>
diff --git a/java/pom.xml b/java/pom.xml
index e8dc5ded..7a1a91f8 100644
--- a/java/pom.xml
+++ b/java/pom.xml
@@ -11,7 +11,7 @@
 
   <groupId>com.google.protobuf</groupId>
   <artifactId>protobuf-parent</artifactId>
-  <version>3.0.0-beta-2</version>
+  <version>3.0.0-beta-3</version>
   <packaging>pom</packaging>
 
   <name>Protocol Buffers [Parent]</name>
diff --git a/java/util/pom.xml b/java/util/pom.xml
index 26c12c82..9236f907 100644
--- a/java/util/pom.xml
+++ b/java/util/pom.xml
@@ -6,7 +6,7 @@
   <parent>
     <groupId>com.google.protobuf</groupId>
     <artifactId>protobuf-parent</artifactId>
-    <version>3.0.0-beta-2</version>
+    <version>3.0.0-beta-3</version>
   </parent>
 
   <artifactId>protobuf-java-util</artifactId>
diff --git a/javanano/pom.xml b/javanano/pom.xml
index 2c9dd943..a2eca09d 100644
--- a/javanano/pom.xml
+++ b/javanano/pom.xml
@@ -10,7 +10,7 @@
   </parent>
   <groupId>com.google.protobuf.nano</groupId>
   <artifactId>protobuf-javanano</artifactId>
-  <version>3.0.0-alpha-5</version>
+  <version>3.0.0-alpha-6</version>
   <packaging>bundle</packaging>
   <name>Protocol Buffer JavaNano API</name>
   <description>
diff --git a/js/package.json b/js/package.json
index c16417ca..ae05722a 100644
--- a/js/package.json
+++ b/js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "google-protobuf",
-  "version": "3.0.0-alpha.5",
+  "version": "3.0.0-alpha.6",
   "description": "Protocol Buffers for JavaScript",
   "main": "google-protobuf.js",
   "dependencies": {
diff --git a/python/google/protobuf/__init__.py b/python/google/protobuf/__init__.py
index fcb1734e..2a3c6771 100755
--- a/python/google/protobuf/__init__.py
+++ b/python/google/protobuf/__init__.py
@@ -30,7 +30,7 @@
 
 # Copyright 2007 Google Inc. All Rights Reserved.
 
-__version__ = '3.0.0b2.post2'
+__version__ = '3.0.0b3'
 
 if __name__ != '__main__':
   try:
diff --git a/ruby/google-protobuf.gemspec b/ruby/google-protobuf.gemspec
index 1fa626fe..c542abf6 100644
--- a/ruby/google-protobuf.gemspec
+++ b/ruby/google-protobuf.gemspec
@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name        = "google-protobuf"
-  s.version     = "3.0.0.alpha.5.0.5"
+  s.version     = "3.0.0.alpha.6.0.0"
   s.licenses    = ["BSD"]
   s.summary     = "Protocol Buffers"
   s.description = "Protocol Buffers are Google's data interchange format."