Security updates were separate update packages released for versions of macOS between 10.0 Cheetah and 10.15 Catalina.
With the shift from a separate Mac OS X Server release to the macOS Server app, security updates to server components became regular app updates, distributed through the Mac App Store.
With the release of macOS 11.0 Big Sur, separate security updates were discontinued in favor of regular patch updates, with Rapid Security Responses later introduced to support critical security updates.
- Mac Security Updates: Security fixes for the base operating system.
- Mac Server Security Updates: Security fixes specific to Mac OS X Server components.
This disambiguation page lists articles associated with the title Security Updates.
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