diff --git a/lib/csharp/test/Multiplex/Client/MultiplexClient.csproj b/lib/csharp/test/Multiplex/Client/MultiplexClient.csproj
index 6221e14..4df1cbc 100644
--- a/lib/csharp/test/Multiplex/Client/MultiplexClient.csproj
+++ b/lib/csharp/test/Multiplex/Client/MultiplexClient.csproj
@@ -46,7 +46,7 @@
     <UpdateRequired>false</UpdateRequired>
     <MapFileExtensions>true</MapFileExtensions>
     <ApplicationRevision>0</ApplicationRevision>
-    <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
+    <ApplicationVersion>0.12.0.%2a</ApplicationVersion>
     <UseApplicationTrust>false</UseApplicationTrust>
     <BootstrapperEnabled>true</BootstrapperEnabled>
   </PropertyGroup>
@@ -145,4 +145,4 @@
 
 </PreBuildEvent>
   </PropertyGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/lib/csharp/test/Multiplex/Client/Properties/AssemblyInfo.cs b/lib/csharp/test/Multiplex/Client/Properties/AssemblyInfo.cs
index f686ded..5ee34a1 100644
--- a/lib/csharp/test/Multiplex/Client/Properties/AssemblyInfo.cs
+++ b/lib/csharp/test/Multiplex/Client/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.*")]
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: AssemblyVersion("0.12.0.0")]
+[assembly: AssemblyFileVersion("0.12.0.0")]
diff --git a/lib/csharp/test/Multiplex/Server/MultiplexServer.csproj b/lib/csharp/test/Multiplex/Server/MultiplexServer.csproj
index dc1d123..57ef76d 100644
--- a/lib/csharp/test/Multiplex/Server/MultiplexServer.csproj
+++ b/lib/csharp/test/Multiplex/Server/MultiplexServer.csproj
@@ -46,7 +46,7 @@
     <UpdateRequired>false</UpdateRequired>
     <MapFileExtensions>true</MapFileExtensions>
     <ApplicationRevision>0</ApplicationRevision>
-    <ApplicationVersion>1.0.0.%2a</ApplicationVersion>
+    <ApplicationVersion>0.12.0.%2a</ApplicationVersion>
     <UseApplicationTrust>false</UseApplicationTrust>
     <BootstrapperEnabled>true</BootstrapperEnabled>
   </PropertyGroup>
@@ -145,4 +145,4 @@
 
 </PreBuildEvent>
   </PropertyGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/lib/csharp/test/Multiplex/Server/Properties/AssemblyInfo.cs b/lib/csharp/test/Multiplex/Server/Properties/AssemblyInfo.cs
index 5d40546..65fb4ce 100644
--- a/lib/csharp/test/Multiplex/Server/Properties/AssemblyInfo.cs
+++ b/lib/csharp/test/Multiplex/Server/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.*")]
-[assembly: AssemblyVersion("1.0.0.0")]
-[assembly: AssemblyFileVersion("1.0.0.0")]
+[assembly: AssemblyVersion("0.12.0.0")]
+[assembly: AssemblyFileVersion("0.12.0.0")]
diff --git a/lib/csharp/test/ThriftMVCTest/Properties/AssemblyInfo.cs b/lib/csharp/test/ThriftMVCTest/Properties/AssemblyInfo.cs
index 1b1b833..186257d 100644
--- a/lib/csharp/test/ThriftMVCTest/Properties/AssemblyInfo.cs
+++ b/lib/csharp/test/ThriftMVCTest/Properties/AssemblyInfo.cs
@@ -49,5 +49,5 @@
 //
 // 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("0.12.0.0")]
+[assembly: AssemblyFileVersion("0.12.0.0")]