Apple Seeds Near Final OS X 10.8.2 Developer Seed Ahead of Media Event - MacRumors
Skip to Content

Apple Seeds Near Final OS X 10.8.2 Developer Seed Ahead of Media Event

mountainlionApple has seeded developers with a new build of OS X Mountain Lion (12C50) to developers this evening. The version contains complete release notes as posted by 9to5Mac, suggesting the release is near complete. Apple is holding a media even on Wednesday where they are likely to detail the new iPhone and iOS 6.

The release notes reveal the following features:

Facebook
- 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

messages unified
One notable feature is the unification of the Apple ID and phone number in OS X Messages. As described by TheVerge:

Now, if someone calls your phone number for Facetime, you'll be able to answer on your Mac or iPad. The same goes for Messages — if you get an iMessage on your phone, it'll be delivered to your Mac and other iOS devices, even if the sender sent the message to your cell phone number and not your Apple ID email.

Apple will likely coordinate the release OS X Mountain Lion alongside iOS 6. We will learn more tomorrow at Apple's media event.

Popular Stories

app store monthly sub commitment

Apple Introduces App Store Monthly Subscriptions With 12-Month Commitment

Monday April 27, 2026 12:52 pm PDT by
Apple today announced the launch of a new subscription option for App Store developers: monthly subscriptions with a 12-month commitment. The new option allows developers to offer subscribers discounted pricing typically associated with an annual subscription but paid on a monthly basis to keep payments more affordable. This new payment option allows you to offer subscribers more affordable...
M5 Vision Pro Thumb 2

Apple Has Given Up on the Vision Pro After M5 Refresh Flop

Wednesday April 29, 2026 11:31 am PDT by
Apple has all but given up on the Vision Pro after the M5 model failed to revitalize interest in the device, MacRumors has learned. Apple updated the Vision Pro with a faster M5 chip and a more comfortable band in October 2025, but there were no other hardware changes, and consumers still weren't interested. The Vision Pro has been criticized for its high price tag and its uncomfortable...
Dynamic Island iPhone 18 Pro Feature

This Is What the iPhone 18 Pro Looks Like

Saturday April 25, 2026 10:00 am PDT by
A recent leak provides our best look yet at the design of Apple's upcoming iPhone 18 Pro and iPhone 18 Pro Max models. Leaker Sonny Dickson recently shared images of the first iPhone 18 Pro, iPhone 18 Pro Max, and foldable iPhone dummy models. The images largely conform with rumors about the designs of the three devices and provide the first real visual confirmation of how they will look. ...

Top Rated Comments

178 months ago
so excited. Tomorrow is going to be amazing.
Score: 15 Votes (Like | Disagree)
Small White Car Avatar
178 months ago
- iMessages sent to your phone number now appear in Messages on your Mac

How was this not included until this point?

I'm struggling to understand how Apple thought that giving people 'Messages' on the Mac that didn't do this from the start was a good idea.
Score: 12 Votes (Like | Disagree)
verniesgarden Avatar
178 months ago
safari may not be snappier, but the macbook air is now nappier.... too lame?:rolleyes:
Score: 11 Votes (Like | Disagree)
rpaloalto Avatar
178 months ago
safari should be much snappier now:)
Score: 10 Votes (Like | Disagree)
emwgradstudent Avatar
178 months ago
Wow

That is quite a list of updates! Can't wait until 10 AM!
Score: 8 Votes (Like | Disagree)
Icaras Avatar
178 months ago
Yay for Power Nap support on the 2010 MBA! :D
Score: 7 Votes (Like | Disagree)