Ability to pre-authenticate a FileVault protected system.

Addresses an issue in which the Keychain may not be accessible.

Addresses an issue with NIS users when auto-login is enabled.

Resolves an issue that may cause the policy banner to re-appear prior to logging in.Addresses an issue that may prevent Active Directory accounts from being locked out.

Resolves a video issue with some VGA projectors when connected to certain Mac notebooks.

Enables access to the Mac App Store when Parental Controls are enabled.

Resolves an issue that may cause the 'Enable Autodiscover' checkbox to always remain checked.

Adds a new preference to have Safari launch with previously open webpages.

Adds SSL support for Google searches from the Smart Search Field in Safari.

Notifications are disabled when AirPlay Mirroring is being used.

URLs are shortened when sending tweets from Notification Center.

Receive Twitter notifications for mentions and replies from anyone.

Unsent drafts are now opened automatically when launching Mail.

Adds an option to discard the changes in the original document when choosing Save As.

The OS X Mountain Lion v10.8.2 update also includes general operating system fixes that improve the stability, compatibility and security of your Mac, including the following fixes:

Sina Weibo profile photos can now be added to Contacts.

Dictionary app now includes a French definition dictionary.

Dictation now supports additional languages: Mandarin, Cantonese, Spanish, Korean, Canadian English, Canadian French, and Italian.

New sort options allow you to sort notes by title, the date you edited them, and when you created them.

FaceTime can now receive calls sent to your phone number*.

You can now add passes to Passbook (on your iPhone or iPod touch) from Safari and Mail on your Mac*.

iMessages sent to your phone number now appear in Messages on your Mac*.

Adds Power Nap support for MacBook Air (Late 2010).

Challenge friends to beat your score or achievement.

Facebook friends are included in Game Center friend recommendations.

Share scores to Facebook, Twitter, Mail, or Messages.

Facebook notifications now appear in Notification Center.

See Facebook friends' contact information and profile pictures in Contacts.

Adds Facebook as an option when sharing links and photos.

Mac os 10.8