The Macintosh Performa 6400/180 and 6400/200 computers currently ship with System 7.5 Revision 2.1. The development cycles of the Macintosh Performa 6400 series computer and System 7.5 Version 7.5.3 made it impossible for System 7.5 Version 7.5.3 to be supported on these Macintosh Performa computers.
However, Macintosh Performa 6400 series computers running System 7.5 Revision 2.1 have all the applicable system software fixes contained in System 7.5 Version 7.5.3. As such, at this time you would not benefit from installing System 7.5 Version 7.5.3.
Apple releases system software updates on a quarterly basis. The Macintosh Performa 6400 series computers will be included in a future system release if and when there are identified fixes for that computer.
?This article was published in the Information Alley on 21 August 1996.
Article Change History:
21 Aug 1996 - Added alley information.