"macOS 10.12" redirects here. For macOS 12, see macOS Monterey.
macOS Sierra
Version of the macOS operating system
macOS Sierra desktop
Developer
Apple Inc.
OS family
Macintosh
Unix[1]
Source model
Closed, with open source components
General availability
September 20, 2016; 7 years ago (2016-09-20)
Latest release
10.12.6 (16G2136)[2] / September 26, 2019; 4 years ago (2019-09-26)
Update method
Mac App Store
Platforms
x86-64
Kernel type
Hybrid (XNU)
License
APSL and Apple EULA
Preceded by
OS X El Capitan
Succeeded by
macOS High Sierra
Official website
macOS - Apple at the Wayback Machine (archived August 30, 2017)
Tagline
What 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 iTunes is no longer being updated, but is able to download driver updates to sync to newer devices.[3] Drops support for Macs released from mid 2007 to mid 2009.
Part of a series on
macOS
Features
History
Transition to Intel processors
Transition to Apple silicon
Architecture
Built-in apps
List of applications
List of games
Versions
Rhapsody (Developer Release)
Hera (Server 1.0)
Kodiak (Public Beta)
Cheetah (10.0)
Puma (10.1)
Jaguar (10.2)
Panther (10.3)
Tiger (10.4)
Leopard (10.5)
Snow Leopard (10.6)
Lion (10.7)
Mountain Lion (10.8)
Mavericks (10.9)
Yosemite (10.10)
El Capitan (10.11)
Sierra (10.12)
High Sierra (10.13)
Mojave (10.14)
Catalina (10.15)
Big Sur (11)
Monterey (12)
Ventura (13)
Sonoma (14)
Applications
App Store
Automator
Books
Calculator
Calendar
Chess
Contacts
Dashboard
Dictionary
DVD Player
FaceTime
Finder
Game Center
Grapher
iTunes (history)
Launchpad
Mail
Messages
Music
Notes
Notification Center
Photo Booth
Podcasts
Photos
Preview
QuickTime
Reminders
Safari (version history)
Sherlock
Stickies
TextEdit
Time Machine
Utilities
Activity Monitor
AirPort Utility
Archive Utility
Audio MIDI Setup
Bluetooth File Exchange
ColorSync
Console
Crash Reporter
DigitalColor Meter
Directory Utility
DiskImageMounter
Disk Utility
Font Book
Grab
Help Viewer
Image Capture
Installer
Keychain Access
Migration Assistant
Network Utility
ODBC Administrator
Remote Install Mac OS X
System Preferences
System Information
Terminal
Universal Access
VoiceOver
Related
Classic Mac OS
Copland
NeXTSTEP
Rhapsody
Darwin
v
t
e
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.
^"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.
^"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.
^"Home". iTunes.com. Archived from the original on 2006-11-07. Retrieved 2020-08-09.
^"Download - Apple Developer". Apple Developer. Archived from the original on 8 February 2023. Retrieved 16 June 2016.
^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.
^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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Global Information
