updated 02:58 pm EDT, Wed June 19, 2013
Compatibility described as 'experimental'
Parallels Desktop 8 for Mac has been updated with support for the OS X Mavericks beta. The new Desktop build, 8.0.18494, lets users run Mavericks virtualized within another copy of OS X. Parallels classifies its Mavericks support as "experimental" however, and notes that since the OS is still unreleased, people must be registered Apple developers to make use of the feature.
The Parallels website provides instructions on getting a Mavericks virtual machine running. Desktop 8 for Mac currently costs $60, and requires OS X 10.6.8, 10.7.4, or 10.8. The public release of OS X Mavericks is due to ship sometime in the fall.