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Mac OS 8
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==Mac OS 8.6== Mac OS 8.6 was released on May 10, 1999, as a free update for Mac users running 8.5 and 8.5.1. It added support to the [[Mac OS nanokernel]] to handle preemptive tasks via the [[Multiprocessing Services]] 2.x and later developer API. Mac OS 8.6 improved PowerBook battery life, added Sherlock 2.1, and is faster and much more stable than either version of 8.5.x. It is the first version of Mac OS to display the version number as part of the startup screen. However, there is no process separation; the system still uses cooperative multitasking between processes, and even a process that is Multiprocessing Services-aware still has a portion that runs in the "blue task", which also runs all programs that are unaware of it, and was the only task that can run 68k code.
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