I’ve just updated my Design Patterns UML Toolbox extension for Visual Studio 2012.
I’d noticed that the version I’d put together for the Beta was not installing correctly in the RTM version so this fixes that. I’m not sure exactly what the problem was but rebuilding the solution with Visual Studio 2012 and the 2012 SDK seems to have fixed it.
You can get the latest version from the Visual Studio Gallery, or just search for UML from with the Tools | Extensions:
If you want to get the source solutions then these are on Codeplex in the UML Design Patterns for Visual Studio project and my original blog post walks through how to put this together.