http://blogs.msdn.com/b/charles_sterling/archive/2010/02/10/architecture-model-projects-from-beta-2-not-working-in-release-candidate-fix.aspxHope every one is enjoying the Visual Studio 2010 Release candidate ! Today somebody mentioned they weren’t able to open the models created in Beta2 in the Release Candidate- turns out we did change the file format! Luckily one of the PMs on the Architecten-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)