Mountain Lion

Updated: 01/31/2019 by Computer Hope
OS X Mountain Lion Logo

Mountain Lion is the codename of OS X 10.8, the ninth major version 10 release of Apple's desktop operating system. It was released on July 25, 2012. The focus of this version was allowing the user greater ability to manage and synchronize data with other Apple devices, such as iPhones and iPads. It was the first release of OS X to include the Notification Center and a unified interface for posting to social media.

Mountain Lion additional features

  • Messages, an instant messaging client.
  • Notes, an application that syncs short text notes across devices.
  • Game Center, a multiplayer online gaming network.
  • AirPlay mirroring, the ability to mirror the computer's screen on an AppleTV.
  • Power Nap, which allows flash storage-based Mac devices to sync with iCloud, update apps using the App Store, and perform Time Machine backups while sleeping.
  • An updated Dock interface.

Mountain Lion changes

  • MobileMe was replaced by iCloud.
  • Software update functionality was integrated into the App Store.
  • Apple's X11 port for OS X began directing users to the open source XQuartz project.
  • RSS support in Mail and Safari was removed.

Apple, Desktop, MacOS, Operating System terms, Social media