Parallels has released the fourth beta of its Server for Mac software. The program provides hypervisor-based server virtualization, which helps save costs by supporting multiple platforms through the same hardware. Beta 4 is notable for reintroducing Leopard Server virtualization, which had been temporarily removed. The upgraded beta means that Leopard Server can once again be run under a virtual machine on XServe systems, or any other compatible Apple hardware.
Server for Mac runs both 32- and 64-bit platforms, and supports technologies such as multi-core CPUs and four-way guest SMP. A client or Server version of Mac OS X 10.4.8 or later is required, along with 2GB of RAM and 30GB of hard drive space for each virtual machine. The download is 153MB.