diff --git a/DotCMIS/DotCMIS.shfbproj b/DotCMIS/DotCMIS.shfbproj
index 62f8875..ac1932c 100644
--- a/DotCMIS/DotCMIS.shfbproj
+++ b/DotCMIS/DotCMIS.shfbproj
@@ -1,4 +1,4 @@
-﻿<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="3.5">
+﻿<Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0">
   <PropertyGroup>
     <!-- The configuration and platform will be used to determine which
          assemblies to include from solution and project documentation
diff --git a/DotCMIS/build.bat b/DotCMIS/build.bat
index f43b01b..8d046ef 100644
--- a/DotCMIS/build.bat
+++ b/DotCMIS/build.bat
@@ -33,4 +33,4 @@
 msbuild DotCMIS.csproj /ToolsVersion:3.5 /p:Configuration=Release
 
 echo Building documentation...
-msbuild DotCMIS.shfbproj /ToolsVersion:3.5 /p:Configuration=Release
\ No newline at end of file
+msbuild DotCMIS.shfbproj /ToolsVersion:4.0 /p:Configuration=Release
\ No newline at end of file
diff --git a/README b/README
index 9e84fd6..cb1e283 100644
--- a/README
+++ b/README
@@ -1,4 +1,4 @@
-Apache Chemistry DotCMIS 0.3
+Apache Chemistry DotCMIS 0.4
 ============================
 
 Apache Chemistry DotCMIS is a Content Management Interoperability Services (CMIS)
@@ -9,13 +9,18 @@
 See http://chemistry.apache.org/dotnet/getting-started-with-dotcmis.html for code samples
 and DotCMISDoc.chm for the API documentation.
 
-This third release is a bug fix release.
+This release is a bug fix release.
 If you find a problem, please let us know: https://issues.apache.org/jira/browse/CMIS
 
 
 Change log 
 ----------
 
+DotCMIS 0.4:
+
+- Several bug and interoptability fixes.
+
+
 DotCMIS 0.3:
 
 - DotCMIS only requires the .NET Client Profile.