diff --git a/lib/csharp/ThriftMSBuildTask/Properties/AssemblyInfo.cs b/lib/csharp/ThriftMSBuildTask/Properties/AssemblyInfo.cs
index 2e08e66..e0a5702 100644
--- a/lib/csharp/ThriftMSBuildTask/Properties/AssemblyInfo.cs
+++ b/lib/csharp/ThriftMSBuildTask/Properties/AssemblyInfo.cs
@@ -56,5 +56,5 @@
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
 // [assembly: AssemblyVersion("1.0.*")]
-[assembly: AssemblyVersion("0.9.0.*")]
-[assembly: AssemblyFileVersion("0.9.0.*")]
+[assembly: AssemblyVersion("0.9.1.*")]
+[assembly: AssemblyFileVersion("0.9.1.*")]
diff --git a/lib/csharp/src/Properties/AssemblyInfo.cs b/lib/csharp/src/Properties/AssemblyInfo.cs
index dcbe747..101e6bf 100644
--- a/lib/csharp/src/Properties/AssemblyInfo.cs
+++ b/lib/csharp/src/Properties/AssemblyInfo.cs
@@ -51,5 +51,5 @@
 //
 // You can specify all the values or you can default the Build and Revision Numbers
 // by using the '*' as shown below:
-[assembly: AssemblyVersion("1.0.0.1")]
-[assembly: AssemblyFileVersion("1.0.0.1")]
+[assembly: AssemblyVersion("0.9.1.1")]
+[assembly: AssemblyFileVersion("0.9.1.1")]
diff --git a/lib/d/src/thrift/base.d b/lib/d/src/thrift/base.d
index 266201b..3b265cb 100644
--- a/lib/d/src/thrift/base.d
+++ b/lib/d/src/thrift/base.d
@@ -50,7 +50,7 @@
 /// The Thrift version string, used for informative purposes.
 // Note: This is currently hardcoded, but will likely be filled in by the build
 // system in future versions.
-enum VERSION = "0.9.0 dev";
+enum VERSION = "0.9.1";
 
 /**
  * Functions used for logging inside Thrift.
diff --git a/lib/delphi/src/Thrift.pas b/lib/delphi/src/Thrift.pas
index 44f12d7..d5a961b 100644
--- a/lib/delphi/src/Thrift.pas
+++ b/lib/delphi/src/Thrift.pas
@@ -25,7 +25,7 @@
   SysUtils, Thrift.Protocol;
 
 const
-  Version = '1.0.0-dev';
+  Version = '0.9.1';
 
 type
   IProcessor = interface
diff --git a/lib/erl/src/thrift.app.src b/lib/erl/src/thrift.app.src
index 90ebc62..db19897 100644
--- a/lib/erl/src/thrift.app.src
+++ b/lib/erl/src/thrift.app.src
@@ -23,7 +23,7 @@
   {description, "Thrift bindings"},
 
   % The version of the applicaton
-  {vsn, "1.0.0-dev"},
+  {vsn, "0.9.1"},
 
   % All modules used by the application.
   {modules, [
diff --git a/lib/hs/Thrift.cabal b/lib/hs/Thrift.cabal
index 6dd9146..6c22e35 100644
--- a/lib/hs/Thrift.cabal
+++ b/lib/hs/Thrift.cabal
@@ -18,7 +18,7 @@
 --
 
 Name:           thrift
-Version:        1.0.0-dev
+Version:        0.9.1
 Cabal-Version:  >= 1.4
 License:        OtherLicense
 Category:       Foreign
diff --git a/lib/java/build.properties b/lib/java/build.properties
index 8d603a6..b73c38f 100644
--- a/lib/java/build.properties
+++ b/lib/java/build.properties
@@ -1,6 +1,6 @@
-thrift.version=1.0.0
+thrift.version=0.9.1
 thrift.groupid=org.apache.thrift
-release=false
+release=true
 
 # Jar Versions 
 mvn.ant.task.version=2.1.3
diff --git a/lib/js/thrift.js b/lib/js/thrift.js
index 39b0a5c..5dcfec1 100644
--- a/lib/js/thrift.js
+++ b/lib/js/thrift.js
@@ -17,7 +17,7 @@
  * under the License.
  */
 var Thrift = {
-    Version: '1.0.0-dev',
+    Version: '0.9.1',
 /*
     Description: 'JavaScript bindings for the Apache Thrift RPC system',
     License: 'http://www.apache.org/licenses/LICENSE-2.0',
diff --git a/lib/nodejs/package.json b/lib/nodejs/package.json
index c57a07b..78dc141 100755
--- a/lib/nodejs/package.json
+++ b/lib/nodejs/package.json
@@ -6,7 +6,7 @@
     { "type" : "git",
       "url" : "https://git-wip-us.apache.org/repos/asf/thrift.git"
     },
-  "version": "1.0.0-dev",
+  "version": "0.9.1",
   "author":
     { "name": "Apache Thrift Developers",
       "email": "dev@thrift.apache.org",
diff --git a/lib/perl/lib/Thrift.pm b/lib/perl/lib/Thrift.pm
index 67186f2..6bdb375 100644
--- a/lib/perl/lib/Thrift.pm
+++ b/lib/perl/lib/Thrift.pm
@@ -17,7 +17,7 @@
 # under the License.
 #
 
-our $VERSION = '1.0.0-dev';
+our $VERSION = '0.9.1';
 
 require 5.6.0;
 use strict;
diff --git a/lib/py/setup.py b/lib/py/setup.py
index c196415..d44fd9c 100644
--- a/lib/py/setup.py
+++ b/lib/py/setup.py
@@ -66,7 +66,7 @@
         extensions = dict()
         
     setup(name = 'thrift',
-        version = '1.0.0-dev',
+        version = '0.9.1',
         description = 'Python bindings for the Apache Thrift RPC system',
         author = ['Thrift Developers'],
         author_email = ['dev@thrift.apache.org'],
diff --git a/lib/rb/thrift.gemspec b/lib/rb/thrift.gemspec
index 67cc3c9..daff1de 100644
--- a/lib/rb/thrift.gemspec
+++ b/lib/rb/thrift.gemspec
@@ -3,7 +3,7 @@
 
 Gem::Specification.new do |s|
   s.name        = 'thrift'
-  s.version     = '0.9.0.1'
+  s.version     = '0.9.1.1'
   s.authors     = ['Thrift Developers']
   s.email       = ['dev@thrift.apache.org']
   s.homepage    = 'http://thrift.apache.org'