Sweet Life (Beta) Mac OS
There is an approximate time-line for almost every Mac OS X;
with a few exceptions. The longest lag between new versions
may have been the time between Panther and Leopard (Tiger)
The history of macOS, Apple's current Mac operating system originally named Mac OS X until 2012 and then OS X until 2016, began with the company's project to replace its 'classic' Mac OS. That system, up to and including its final release Mac OS 9, was a direct descendant of the operating system Apple had used in its Macintosh computers since. Apple has released a public beta of its new MacOS operating system for computers. The update is named Big Sur and numbered MacOS 11, marking the first major numerical revision since it released.
as that also was a very refined version due to many updates...
Mar 24, 2016 - Learn which OS X versions and builds originally shipped with
or are available for your ... iMac, Date introduced, Original Mac OS X included
This may not answer your question; while there are a few other Support
articles that had covered approximate dates of inception, MacTracker.ca
application has a software section that has dates for each OS X. Also a
few pages in EveryMac.com likely has some information. ~Wikipedia?
Jump to Release history - ... support, Kernel, Date announced, Release date, Most
recent version ... Tiger did not support 64-bit GUI applications, only 64-bit CLI app-
lications. ... With the exception of Mac OS X Server 1.0 and the original public beta,
OS X ... Prior to its release, version 10.0 was code named 'Cheetah' ...
OS X El Capitan · History of OS X · OS X Yosemite · OS X Mavericks
+Older articles from third-party sites, suggest about five years including
supported updates from Apple. Subject to change (& more recent fact)
So there is some information out there on this topic.
Good luck & happy computing! 🙂
Sep 4, 2016 3:40 PM
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