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Version Released Service Status
macOS 11 (Big Sur) 10 months ago
(12 Nov 2020)
Yes
macOS 10.15 (Catalina) 1 year and 11 months ago
(07 Oct 2019)
Yes
macOS 10.14 (Mojave) 3 years ago
(24 Sep 2018)
Yes
macOS 10.13 (High Sierra) 4 years ago
(25 Sep 2017)
Ended 9 months ago
(01 Dec 2020)
macOS 10.12 (Sierra) 5 years ago
(20 Sep 2016)
Ended 1 year and 11 months ago
(01 Oct 2019)
OS X 10.11 (El Capitan) 5 years and 12 months ago
(30 Sep 2015)
Ended 2 years and 9 months ago
(01 Dec 2018)
OS X 10.10 (Yosemite) 6 years and 11 months ago
(16 Oct 2014)
Ended 4 years ago
(01 Aug 2017)
OS X 10.9 (Mavericks) 7 years and 11 months ago
(22 Oct 2013)
Ended 4 years and 9 months ago
(01 Dec 2016)

macOS (aka OS X, Mac OS X) is the primary operating system for Appleā€™s Mac computers.

Major versions of macOS are released once a year now, usually maitained for three years.

More information is available on the macOS website.

You can check the version that you are currently using by running:
sw_vers

You can submit an improvement to this page by visiting GitHub. You will need to fork the website and submit a Pull Request. A JSON version of this page is available at /api/macos.json. See the API Documentation for more.