Apple has seeded OS X Mountain Lion 10.8.2 build 12C50 to developers. This new build comes less than a week after 10.8.2 build 12C43. 10.8.2 includes phone number syncing for iMessage and Facebook integration, making it the iOS 6 compatibility release. Tomorrow, Apple will unveil a new iPhone and provide final iOS 6 details. 10.8.2 will likely be released later this month alongside iOS 6. OS X Lion 10.7.5 build 11G54 was also seeded to developers.
This new 10.8.2 build includes release notes, making it likely that this build is either the final or close to final 10.8.2 build.
The 10.8.2 update is recommended for all OS X Mountain Lion users and includes new features and fixes. New features include:
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Single sign on for Facebook
Facebook as an option when sharing links and photos
Facebook friends’ contact information and profile pictures in Contacts
Facebook notifications in Notification Center
Game Center
Share scores to Facebook, Twitter, Mail, or Messages
Facebook friends are included in Game Center friend recommendations
Facebook Like button for games
Challenge friends to beat your score or achievement
Other new features
Power Nap support for MacBook Air (Late 2010)
iMessages sent to your phone number now appear in Messages on your Mac
From Safari and Mail on your Mac you can add passes to Passbook on your iPhone or iPod touch running iOS 6
New shared Reminders lists
FaceTime now receives calls sent to your phone number
New sort options allow you to sort notes by title, the date you edited them, and when you created them
Dictation now supports Mandarin, Cantonese, Spanish, Korean, Canadian English, Canadian French, and Italian
The Dictionary application now includes a French definition dictionary
Sina Weibo profile photos can now be added to Contacts
The 10.8.2 update also includes general operating system fixes that improve the stability, compatibility and security of your Mac, including the following fixes:
An option to discard the changes in the original document when choosing Save As
Unsent drafts are opened automatically when launching Mail
Receive Twitter notifications for mentions and replies from anyone
URLs are shortened when sending tweets from Notification Center
Notifications are disabled when AirPlay Mirroring is being used
SSL support for Google searches from the Smart Search Field in Safari
New preference to have Safari launch with previously open webpages
For detailed information on this update, please visit this website: http://support.apple.com/kb/HT5460
For information on the security content of this update, please visit: http://support.apple.com/kb/HT1222