949219  Description of the Hyper-V Release Candidate update for Windows Server 2008

 

949222  Virtual machines that were created on the beta version of the Hyper-V role do not start after the Hyper-V role is updated to a later version

 

949758  Availability of the Windows Vista Service Pack 1 management tools for the Hyper-V release candidate

 

939853  You receive an error message when you try to upgrade the WSv preview build installed on Windows Server 2008 RC0 or on Windows Server 2008 RC1 to the Windows Server 2008 RC1 build with Hyper-V beta or to the release version of Windows Server 2008