Mac OS X 10.6 Snow Leopard - 28 August 2009 Mac OS X 10.7 Lion (Barolo) - 20 July 2011 OS X 10.8 Mountain Lion (Zinfandel) - 25 July 2012
OS X 10.9 Mavericks (Cabernet) - 22 October 2013 OS X 10.11: El Capitan (Gala) - 30 September 2015 MacOS 10.13: High Sierra (Lobo) - 25 September 2017 MacOS 10.14: Mojave (Liberty) - 24 September 2018 MacOS 10.15: Catalina (Jazz) - 7 October 2019 Here’s an overview of all versions of macOS and Mac OS X Apple has released along with public and internal code names (if available): We will walk you through three categories of Mac operating systems - macOS, OS X and Mac OS X, from the lastest the the oldest. It's praised for the straightforward graphical interface and high security but criticized for updating problems and hardware limitations.
The Mac operating system is the second most widely-used operating system targeted for Apple's Mac family of personal computers.
