Virtual Server 2005 R2 SP2 has been released.
In addition to better performance, Virtual Server 2005 R2 SP1 also includes added guest OS support. Other new components and functionality in VS 2005 R2 SP1 include:
Hardware-assisted virtualization
VHD Mount Command-line Tool and APIsSupport for Volume Shadow Copy Service
Larger default size for dynamically expanding virtual hard disks
Support for greater than 64 virtual machines on x64-based hosts
Host clustering step-by-step guide
Virtual SCSI fix for Linux guests
VMRC ActiveX control and Internet Explorer Security Zones
Service Publication using Active Directory Service Connection Points
This free product can be downloaded here.
