It is not compatible with Mac OS X 10.5 or Windows XP. IMPORTANT: this release is tested on Windows 7 and Mac OS X 10.6 upwards only. Known issues with the current version of Superior can be reviewed at: The latest update is now available from the Toontrack Product Manager, available from your Toontrack user account. This is a free update to all registered users. Toontrack have released an update to Superior Drummer 2, version 2.4.4.
