MacOS Sierra

macOS Sierra
Version of the macOS operating system
macOS Sierra desktop
DeveloperApple Inc.
OS family
Source modelClosed, with open source components
General
availability
September 20, 2016 (2016-09-20)
Latest release10.12.6 (16G2136)[2] / September 26, 2019 (2019-09-26)
Update methodMac App Store
Platformsx86-64
Kernel typeHybrid (XNU)
LicenseAPSL and Apple EULA
Preceded byOS X El Capitan
Succeeded bymacOS High Sierra
Official websitemacOS - Apple at the Wayback Machine (archived August 30, 2017)
TaglineWhat can your Mac do now? Just ask.
Support status
Obsolete, unsupported as of September 2019. iTunes is no longer being updated, but is able to download driver updates to sync to newer devices.[3] Drops support for Macs released from mid 2007 to mid 2009.

macOS Sierra (version 10.12)[4] is the thirteenth major release of macOS (formerly known as OS X and Mac OS X), Apple Inc.'s desktop and server operating system for Macintosh computers. The name "macOS" stems from the intention to unify the operating system's name with that of iOS, watchOS and tvOS. Sierra is named after the Sierra Nevada mountain range in California and Nevada.[5] Its major new features concern Continuity, iCloud, and windowing, as well as support for Apple Pay and Siri.

The first beta of macOS Sierra was released to developers shortly following the 2016 WWDC keynote on June 13, 2016. The first public-beta release followed on July 7, 2016. It was released to end users on September 20, 2016, as a free upgrade through the Mac App Store[6] and it was succeeded by macOS High Sierra on September 25, 2017.

  1. ^ "macOS version 10.12 Sierra on Intel-based Mac computers". The Open Group. Archived from the original on October 2, 2016. Retrieved September 29, 2016.
  2. ^ "About the security content of macOS Mojave 10.14.6 Supplemental Update 2, Security Update 2019-005 High Sierra, and Security Update 2019-005 Sierra". Apple Support. September 26, 2019. Archived from the original on December 21, 2020. Retrieved September 26, 2019.
  3. ^ "Home". iTunes.com. Archived from the original on 2006-11-07. Retrieved 2020-08-09.
  4. ^ "Download - Apple Developer". Apple Developer. Archived from the original on 8 February 2023. Retrieved 16 June 2016.
  5. ^ Loyola, Roman (7 July 2016). "macOS Sierra FAQ: What you need to know about the new Mac operating system". Macworld. Archived from the original on 15 July 2016. Retrieved 13 July 2016.
  6. ^ Majo, Benjamin (7 September 2016). "macOS Sierra will be released on September 20 for free to Mac owners". 9to5Mac. Archived from the original on 8 September 2016. Retrieved 7 September 2016.

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