diff --git a/source/Components/Xceed.Wpf.AvalonDock/AssemblyVersionInfo.cs b/source/Components/Xceed.Wpf.AvalonDock/AssemblyVersionInfo.cs
index 0704296e..9a29d81d 100644
--- a/source/Components/Xceed.Wpf.AvalonDock/AssemblyVersionInfo.cs
+++ b/source/Components/Xceed.Wpf.AvalonDock/AssemblyVersionInfo.cs
@@ -24,7 +24,7 @@ internal static class _XceedVersionInfo
   public const string BaseVersion = "3.5";
   [System.Diagnostics.CodeAnalysis.SuppressMessage( "Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields" )]
   public const string Version = BaseVersion + 
-  ".3.0";
+  ".4.0";
   [System.Diagnostics.CodeAnalysis.SuppressMessage( "Microsoft.Performance", "CA1823:AvoidUnusedPrivateFields" )]
   public const string PublicKeyToken = "ba83ff368b7563c6";