http://blogs.msdn.com/b/team_foundation/archive/2010/03/15/the-visual-studio-2005-forward-compatibility-update-is-available.aspxThe Team Explorer 2005 Forward Compatibility Update (GDR) The VSTS 2005 Forward Compatibility Update is now available. It is more focused on development scenarios. For administrative, project management and test case scenarios, the use of Team Exploreren-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)