Apple released OS X 10.9 (Mavericks) Tuesday and within an hour JAMF Software had released Casper 9.2 with support for Mavericks. Current customers can log in to their accounts at https://jamfnation.jamfsoftware.com/login.html to download the update.
Casper 9.2 includes some bug fixes and new features just for Mavericks. It also includes some new features independent of Mavericks such as support for deploying Mac OS X 10.7 and later upgrades using an OS X installer downloaded directly from the Mac App Store.
JAMF has published full Casper 9.2 release notes on its site.