- Increased memory size for virtual machines
- Experimental support for Longhorn
- Improved support for guests using Linux kernels in the 2.6 series
- New Operating System Support (Novell NetWare 5.1, 6 and 6.5, SUSE LINUX 9.0)
- Support for PXE (preboot execution environment) to install operating systems into new virtual machines
- and more
Existing users of version 4.x can download the update free of charge.