Mac OS 9.2.2

Mac OS 9.22 was released on December 5, 2001.

This was the final release of the Classic Mac OS. It was a bugfix release for the OS X Classic environment, and contains no new features over Mac OS 9.2.

The Mac OS 9.22 Update improves Classic application compatibility in Mac OS X and delivers improved support for Macintosh computers that are based on the PowerPC G3 and G4 microprocessors. Mac OS 9.22 is compatible with Mac OS X 10.1 or later.