Mac OS - Versions by year

Problem

You wish to check whether a Mac OS version is compatible with a specific Mac model or to check what year a version was released.

Resolution

Provided below are a list of the major version releases of Mac OS.  Clicking each link will go to a page that provides a list of compatible Mac models.  

ALERT!

End users are advised that updating to the very latest major Mac OS version may break software compatiibility with their assistive apps.  Please check with Sight & Sound or the software developer if the softwae you have will be compatihle with the latest Mac release before upgrading.  Please call us on 01604 798 000 or email support@sightandsound.co.uk for advice..

Public Beta: "Kodiak" September 2000
Version 10.0: "Cheetah" March 2001
Version 10.1: "Puma" September, 2001
Version 10.2: "Jaguar" August 2002
Version 10.3: "Panther" October 2003
Version 10.4: "Tiger" April 2005
Version 10.5: "Leopard" October 2007
Version 10.6: "Snow Leopard" August 2009
Version 10.7: "Lion" July 2011
Version 10.8: "Mountain Lion" July 2012
Version 10.9: "Mavericks" October 2013
Version 10.10: "Yosemite" October 2014
Version 10.11: "El Capitan" October 2015
Version 10.12: "Sierra" 20 September 2016
Version 10.13: "High Sierra" October 2017
Version 10.14: "Mojave" September 24, 2018
Version 10.15: “Catalina” October 7 2019
Version 11.01 “Big Sur” November 12th 2020
Version 12.0.1 “Monterey” October 25th 2021
Version 13.0 "Ventura" October 2022
Version 14.0 "Sonoma" October 2023
 Version 15.0 "Sequoia" September 2024
Version 26 "Tahoe" September 2025

Note

1. As of Tahoe Apple have moved to using a year for their versions.
   
2. Click the short version number reported in about to view the full version information.

1. 
   

• Related Articles

• Apple - Check Mac OS version

  Problem In order to support troubleshooting the Mac OS version number needs to be obtained and provided to Technical Support. Applies to Mac OS Resolution Note Due to changes in Mac OS UI a new set of instructions are provided to obtain version info. ...

• Mac OS - Check for Mac OS software updates

  Problem A Mac user would like to check for software updates to maintain their system or resolve a problem. Applies to Mac OS Resolution Use the method most apropriate to known operating system version. Operating system information may be found by ...

• Apple - Boot into Mac OS safe mode

  Problem A Mac user experiences a problem with their computer and wish to try running in safe mode to isolate the problem furher. Applies to Mac desktop and laptops Resolution One can run the Mac OS operating system in Safe Mode to identify if any ...

• Mac OS – Control update behaviour

  Problem A Mac user would like to be in control of how and when the Mac OS operating system is updated to preserve software compatibility. Resolution Under default settings Mac OS will push major updates and interim security updates. In some ...

• Apple - Change Mac OS login password

  Problem A Apple Mac user wishes to change their current logon password. Applies to Mac OS Resolution Macs shipped fom Sight & Sound with applications installed by our workshop will have been shipped with a four digit password. A customer after ...