- last post: 01.01.0001 12:00 AM PDT
That and 7.5.3 is the most updated version of Mac OS that Apple has released for free. Anything newer has to be bought.
Also, 7.5.3 will be quite lightweight - OS 8 and OS 9 started to get a bit tubby in the ram department so they might not be that good as an emulated system.