OS X Mountain Lion Developer Preview 3 (Build 12A206j) Seeded

OS X Mountain Lion is going to be the bridge between Apple’s iOS and OS X platforms. By bridging the two operating systems Apple hopes to make the user experience seamless between their mobile devices and desktop computers. Although some people are very much against the idea of this, I think this is a smart move for Apple. And other technology companies like Microsoft are even starting to follow with the introduction of the Windows 8 Metro UI (user interface), which resembles the UI off their Windows smartphones.

With OS X Mountain Lion expected to be introduced at the WWDC 2012 Apple needs to be vigorously testing the new operating system and ironing out all of the bugs. In fact today, Apple has begun seeding an update to the third developer preview of OS X Mountain Lion that was released in April. At this time the changelog for this update is not available and thus the changes are not known. For those of you that are running OS X Mountain Lion however, you will indeed notice an update via the Mac App Store.

The only sort of information we have about this update is from and email sent by Apple:

A pre-release version of the OS X Mountain Lion software is now available. If you have build 12A178q or higher installed, the new build of OS X Mountain Lion is available through Software Update. A new Server build will be available later. Detailed Instructions for installing this build can be found in the OS X Mountain Lion discussions. Please review these instructions completely before attempting to install the software.

Important: MacBook Pro 3,1 is not supported in this build of Mountain Lion. Future developer previews will restore support for this configuration.
Installation

A pre-release version of the OS X Mountain Lion software is now available via Software Update in the Mac App Store. You will need to have build 12A178q or higher installed in order to see the update. Once the update is complete, your system will be at build 12A206j.

1) Click on the Apple menu, then click on the Software Update. The Mac App Store will launch and display your available updates. Note: You can still access the Software Update in all of the same ways, only now the Mac App Store will launch and open the Updates tab.

2) In the section with the Mountain Lion icon, titled “Software Update,” click on the “…More” link.

3) Find the update called “Mountain Lion Developer Preview Update 10.8″, and click the corresponding Update button for this update to install. The update will begin downloading, and when prompted, click “Restart” to install the update.

We will let you know once more information about this update becomes available. Until that time please stay tuned…

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