Thread:Roadhawk/@comment-24886041-20140617155628/@comment-24886041-20140617174510

Ideally, switched for a different article feature, as that one's dated (by 2 years), but until then:

OS X 10.8 (version 10.8; marketed as OS X Mountain Lion) was released in the summer of 2012. One purpose of this revision was to begin introducing new features in iOS to the Macintosh interface.

These feature parity updates include iMessage, Notes, Reminders, Notification Center, and more. It was made available from the Mac App Store for $19.99 for existing users of OS X 10.6 and OS X 10.7.