MacOS Catalina

16th major version of the macOS operating system / From Wikipedia, the free encyclopedia

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macOS Catalina (version 10.15) is the sixteenth major release of macOS, Apple Inc.'s desktop operating system for Macintosh computers. It is the successor to macOS Mojave and was announced at WWDC 2019 on June 3, 2019 and released to the public on October 7, 2019. Catalina is the first version of macOS to support only 64-bit applications and the first to include Activation Lock.[3][4] It is also the last version of macOS to have the major version number of 10; its successor, Big Sur, released on November 12, 2020, is version 11.[5][6] In order to increase web compatibility, Safari, Chromium and Firefox have frozen the OS in the user agent running in subsequent releases of macOS at 10.15.7 Catalina.[7][8][9]

Quick facts: Developer, OS family, Source model, General a...
macOS Catalina
Version of the macOS operating system
macOS Catalina wordmark
Screenshot of the macOS Catalina desktop in dark mode
DeveloperApple Inc.
OS family
Source modelClosed, with open source components
October 7, 2019; 3 years ago (2019-10-07)[1]
Latest release10.15.7 Security Update 2022-005[2] (19H2026) (July 20, 2022; 7 months ago (2022-07-20)) [±]
Update methodSoftware Update
Kernel typeHybrid (XNU)
LicenseAPSL and Apple EULA
Preceded bymacOS Mojave
Succeeded bymacOS Big Sur
Official at the Wayback Machine (archived November 9, 2020)
TaglineThe power of the Mac. Taken further.
Support status
Unsupported as of November 30, 2022. Finder is still able to download driver updates to sync to newer devices.

The operating system is named after Santa Catalina Island, which is located off the coast of southern California.