http://blogs.msdn.com/dwinter/archive/2008/12/17/december-cumulative-update-for-sharepoint-has-released.aspxOn the SharePoint team blog, you can find a more detailed post announcing the release of the December CU and providing detail on a new package that we are shipping from this point forward: http://blogs.msdn.com/sharepoint/archive/2008/12/17/announcing-december-cumulative-update-for-office-sharepoint-server-2007-and-windows-sharepoint-services-3-0.aspxen-USCommunityServer 2.1 SP1 (Build: 61025.2)