Page Comparison

Vendor : Apple

Operating system name : MacOS

Version/Edition : Sonoma, Ventura, Monterey

Sonoma, Ventura and Monterey are currently supported.
Big Sur is no longer supported.

Update policy : Apple typically provides security updates for the latest 3 named versions.
The time between major updates to versions is roughly a year.
Apple provide support for three years for each operating system, after which it will no longer receive security updates.

Sequoia, Sonoma and Ventura currently receive security updates.

Monterey is no longer supported and no longer receives security updates.

By default, MacOS downloads and installs updates automatically. Check that automatic updates are enabled.

MacOS support

How to check your version :

Click on Apple logo, then click 'About This Mac'. The version name and number will appear.

Security Updates :

Apple typically provide support for around three years for each version of the operating system.

Sonoma - released 26/09/23, support expected to end September 2026. Latest security update 25th October 2023. Must be installed by 8th November to remain compliant.

Ventura - released 24/10/2022, support expected to end October 2025. Latest security update 25th October 2023. Must be installed by 8th November to remain compliant.

Monterey - released 25/10/2021, support expected to end October 2024. Latest security update 25th October 2023. Must be installed by 8th November to remain compliant.

Vendor information:

https://support.apple.com/en-gb/HT201222