Chris Lalancette released Oz 0.11.0 on Sunday that provides bug-fixes for the program and support for a number of new operating systems.
Oz 0.11.0 can now support installing Ubuntu 13.04, Fedora 19, Debian 7, Windows 2012, Windows 8, openSUSE 12.3, and other operating systems in the mostly-automated install process.
Oz 0.11.0 also supports URL-based installs of Ubuntu, support for custom MAC addresses, and support for alternate file types. Oz is mostly about automated operating system installations to virtual machines as opposed to bare metal.
More details on the new Oz 0.11 release can be found via this blog post.