http://blogs.msdn.com/buckh/archive/2006/09/26/772349.aspxFor Team Build users, I'll spare you the suspense and tell you that there are no meaningful changes in Team Build itself in SP1. There are changes in other parts of the system, though, that will be of some benefit. Version control users will get a numberen-USCommunityServer 2.1 SP1 (Build: 61025.2)