http://developers.de/blogs/damir_dobric/archive/2009/09/02/silverlight-3-gdr2-released.aspxTody Microsoft has released a minor SIlverlight v3 release filed under “ general distribution release 2”. Today, if your development environment is up to date, you will notice following line of code in the SL start page: < param name ="minRuntimeVersion"enCommunityServer 2008 SP1 (Build: 30619.63)