Mac OS X 10.8.2 now available
September 19th 2012
Facebook
* Single sign on for Facebook
* Adds Facebook as an option when sharing links and photos
* See Facebook friends' contact information and profile pictures in Contacts
* Facebook notifications now appear in Notification Center
Game Center
* Share scores to Facebook, Twitter, Mail, or Messages
* Facebook friends are included in Game Center friend recommendations
* Added Facebook "Like" button for games
* Challenge friends to beat your score or achievement
Other new features
* Adds Power Nap support for MacBook Air (Late 2010)
* iMessages sent to your phone number now appear in Messages on your Mac
* You can now add passes to Passbook (on your iPhone or iPod touch) from Safari and Mail on your Mac
* FaceTime can now receive calls sent to your phone number
* New shared Reminders lists
* New sort options allow you to sort notes by title, the date you edited them, and when you created them
* Dictation now supports additional languages: Mandarin, Cantonese, Spanish, Korean, Canadian English, Canadian French, and Italian
* Dictionary app now includes a French definition dictionary
* Sina Weibo profile photos can now be added to Contacts
The update also includes a number of other fixes and improvements. See Apple's site for the full list of changes.
10.8.2 Info