http://blogs.technet.com/stirling/archive/2008/04/08/introducing-stirling.aspxIn June of 2007 we announced a new project, Forefront codenamed “ Stirling ”, to the world. Now the moment you’ve been waiting for: our first public beta of the product! Today we release Beta 1 of Stirling to give everyone a small taste of what an integrateden-USCommunityServer 2.1 SP1 (Build: 61025.2)