REFERENCE -

Apple OS X and macOS Versions

Apple
The following table shows the versions of Apple OS X and macOS, together with the release date and the end date for mainstream support, with estimated dates in italics.

If you are unsure what version of macOS is running on your computer, from the Apple menu Apple Logo Icon in the corner of your screen, choose About This Mac.

Version Numbers Name Release date Last Update Support date
macOS 14.4.1 Sonoma 26 Sep 2023 25 Mar 2024 30 Sep 2026
macOS 13.6.6 Ventura 24 Oct 2022 25 Mar 2024 31 Oct 2025
macOS 12.7.4 Monterey 25 Oct 2021 7 Mar 2024 30 Nov 2024
macOS 11.7.10 Big Sur (10.16) 12 Nov 2020 11 Sep 2023 11 Sep 2023
macOS 10.15.7 Catalina (Jazz) 8 Oct 2019 20 Jul 2022 30 Nov 2022
macOS 10.14.6 Mojave (Liberty) 12 Sep 2018 21 Jul 2021 25 Oct 2021
macOS 10.13.6 High Sierra (Lobo) 25 Sep 2017 12 Nov 2020 1 Dec 2020
macOS 10.12.6 Sierra (Fuji) 20 Sep 2016 26 Sep 2019 30 Sep 2019
OS X 10.11.0-6 El Capitan (Gala) 30 Sep 2015 9 Jul 2018 30 Sep 2018
OS X 10.10.0-5 Yosemite (Syrah) 16 Oct 2014 19 Jul 2017 25 Sep 2017
OS X 10.9.0-5 Mavericks (Cabernet) 22 Oct 2013 18 Jul 2016 20 Sep 2016
OS X 10.8.0-5 Mountain Lion (Zinfandel) 25 Jul 2011 13 Aug 2015 30 Sep 2015
OS X 10.7.0-5 Lion (Barolo) 20 Jul 2011 4 Oct 2012 16 Oct 2014
OS X 10.6.0-8 Snow Leopard 28 Aug 2009 25 Jul 2011 22 Oct 2013
OS X 10.5.0-8 Leopard (Chablis) 26 Oct 2007 13 Aug 2009 25 Jul 2011
OS X 10.4.4-11 Tiger (Chardonnay) 10 Jan 2006 14 Nov 2007 20 Jul 2011
OS X 10.4.0-3 Tiger (Merlot) 29 Apr 2005 25 Jul 2008 28 Aug 2009
OS X 10.3.0-9 Panther (Pinot) 24 Oct 2003 15 Apr 2005 26 Oct 2007
OS X 10.2.0-8 Jaguar 24 Aug 2002 3 Oct 2003 10 Jan 2006
OS X 10.1.0-5 Puma 25 Sep 2001 6 Jun 2002 29 Apr 2005
OS X 10.0.0-4 Cheetah 24 Mar 2001 22 Jun 2001 29 Apr 2005
OS X 10 beta Kodiak 13 Sep 2000 unknown 24 Oct 2003
M1-based versions
Intel-based versions
32/64-bit PowerPC versions
32-bit PowerPC versions

There is no published Apple support policy, but they have consistently maintained the latest three versions of macOS, although Apple could change this policy at any time.

The Apple Security Updates page is the only page on Apple's website that gives you this information. It contains a list of security updates and bug fixes that Apple has recently released for all its devices, including Macs running macOS. Look for the most recent macOS update and check which versions of macOS it was released for. Essentially, if a version of macOS isn't receiving new updates, it isn't supported anymore.