(27/10/97) 3 Mac OS X Developer Preview Unknown ~ 32-bit PowerPC 16/3/99 DP4

# Version Codename Darwin Processor Release Date Recent Version 1 Rhapsody Developer Release Grail1Z4 / Titan1U ~ 32-bit PowerPC 31/8/97 DR2 Although it was originally marketed as simply “Version 10” of the Mac OS (indicated by the Roman numeral “X”), it has a completely different codebase from Mac OS 9.Ī new macOS namely “Monterey” was announced during Worldwide Developers Conference (WWDC) on 7 th June 2021. In this article, I’m not going to list the version history of the classic Macintosh Operating System found in the 80s and 90s rather I’m going to list all the latest macOS Version history that you will find on the 20s Apple Computers.īefore we dig deep into the list of version history, let us have a short introduction to macOS.Īpple had been using the Macintosh Operating System from 1984 to 2001 which included its final release of MAC OS 9 in 2001, the Mac OS X 10.0 (Cheetah) was a direct descendant of the operating system.Īpple used the “MacOs X” term for their operating system from 2001 until 2011 and the “OS X” term from 2012 to 2015. Are you looking for macOS Version History? Well, you came to the right place!

Upgrade mac 10.7.5 to 10.10.5