Apple Releases OS X Mountain Lion Developer Preview 4

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Apple released new versions of OS X Mountain Lion to developers today. Developer Preview 4 arrives with a build number of 12A239, while OS X Server Developer Preview 5 has build number 12S254j.

The release notes do not reveal any major updates to the software, but note a few minor issues with Setup Assistant, FileVault and QuickTime screen recording. Most significantly, the release does not ask developers to focus on any specific areas for testing, suggesting Mountain Lion will indeed be ready for release next month.

Mountain Lion was covered extensively at the WWDC Keynote this morning. It will be released in July on the Mac App Store for $19.99.


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63 months ago
I just don't want Apple to rush Mountain Lion, fix all the bugs first and release it when it's ready. And write some great drivers for the older models too please, don't focus only on your newest creations.
Rating: 6 Votes
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63 months ago

Watching the keynote now... Uhh, where are the Dock indicators?


They’re still there if you look closely.
Rating: 3 Votes
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63 months ago

im assuming we will see a GM build next than the final? as for Facebook integration.. maybe 10.8.1?


FB is already integrated..............

http://www.cultofmac.com/173035/apple-releases-os-x-mountain-lion-developer-preview-4-with-facebook-integration/?utm_medium=twit&utm_campaign=spread-us
Rating: 2 Votes
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63 months ago
Gonna download this delicious little tart tonight. Gotta date with a honey, y'all. :D
Rating: 2 Votes
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63 months ago

no safari update?


Yes, Safari 6...
Rating: 2 Votes
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63 months ago

isn't that in iOS not OS X?


Both versions got updates. OS X's received New Gesture-based tab navigation, unified bar, and cloud tabs.
Rating: 2 Votes
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63 months ago
Just Installed Developer Preview 4 and It looks amazing, they've done an awesome job of making refinements on the UI..
Rating: 2 Votes
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63 months ago
Any upgrades for OpenGL? Funny part is apple has good hardware for graphics but crappy support it.
Rating: 1 Votes
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63 months ago

So any issues installing this if you're not a developer?


No, just an occasional small bug or two
Rating: 1 Votes
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63 months ago
This is awesome release. Safari is finally fixed when using hotmail web interface and feels alot more snappier. Must have.
Rating: 1 Votes
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