OS X Sierra
| A version of the macOS operating system | |
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macOS Sierra desktop
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| Developer | Apple Inc. |
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| OS family | |
| Source model | Closed, with open-source components |
| Initial release | September 20, 2016 |
| Latest release | 10.12.6 (16G1114) / December 6, 2017 |
| Update method | Mac App Store |
| Platforms | x86-64 |
| Kernel type | Hybrid (XNU) |
| License | APSL and Apple EULA and Non-Disclosure Agreement |
| Preceded by | OS X 10.11 El Capitan |
| Succeeded by | macOS 10.13 High Sierra |
| Official website | macOS - Apple at the Wayback Machine (archived August 30, 2017) |
| Support status | |
| Security updates and printer drivers only. Extended support to end in 2019, and iTunes support ends in 2020. | |
macOS Sierra (version 10.12) is the thirteenth major release of macOS (previously OS X), Apple Inc.'s desktop and server operating system for Macintosh computers. The successor to OS X El Capitan, it was the first version of the operating system issued under the June 2016 rebranding as macOS. Sierra is named after California's Sierra Nevada mountain range. 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.
macOS Sierra requires at least 2 GB of RAM and 8 GB of storage space and will run on:
Sierra is the first version of macOS since OS X Mountain Lion, released in 2012, that does not run on all computers that the previous version supported. Developers have created workarounds to install macOS Sierra on some Mac computers that are no longer officially supported.
The default desktop picture is an image of Lone Pine Peak.
The user can access the Siri intelligent assistant via the Dock, the menu bar or a keyboard shortcut and results are shown in a window in the upper-right corner. Siri can send messages, search the web, find files and adjust settings. Results can be dropped into other applications or pinned to Notification Center. For instance, pictures from search results can be dragged into a document.
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