Mac OS 7.5.3 Revision 2.2

Mac OS 7.5.3 Revision 2.2, or System 7.5.3 Revision 2.2, is an update (revision) to Mac OS 7.5.3 (System 7.5.3). Its Apple code name was Unity.

The third revision in the Mac OS 7.5.3 revision series, it is curiously unknown to much of the Mac community. Released in 1996, it only affects the following models:


 * Power Macintosh 9500/200
 * Performa 6360

No other models were affected.

Sources and Evidence of Existance

 * http://www.jmusheneaux.com/31.htm
 * http://members.aol.com/harumac/codenames.html