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  • OS X Mountain Lion Developer Preview 3 Released


    Apple today seeded to its registered developers the third developer preview version of OS X Mountain Lion. The release comes more than a month after the last dev preview.

    Billed as "Build 12A178q," the release is too fresh to have many insights into changes native to the new version, but we will all but certainly gain some answers in the coming hours and days.

    For now, Apple does highlight some known issues with the current build. These include:

    - On systems with FileVault enabled, canceling the restart to the Mountain Lion Developer Preview 3 Installer may leave your system unable to present a password dialog at boot time. You
    can repair the problem by holding down command-R to boot to the Recovery OS and then using Disk Utility to unlock and Repair your volume.
    - Installing OS X 10.8 over 10.7.2 or earlier with FileVault turned on may fail
    - Pre-Lion FileVault user accounts are not supported in this Developer Preview
    - Some Apple menu items such as Restart may not work when a sandboxed app is in the foreground
    - iTunes no longer syncs Notes
    - Mail’s photo browser cannot access the iPhoto library
    - Back to My Mac doesn’t work for the first 5 minutes after rebooting
    - DVD Player may not launch after inserting a DVD on some systems
    - Most help topics are unavailable in this Developer Preview
    - In the Recovery HD:
    - Some icons may be missing
    - Network Utility’s Lookup pane does not work
    - Time Machine restoration via a AFP share does not work
    - Restoring from a Time Machine backup via AFP does not work
    - Migration from a Time Machine backup that excludes paths such as /System may yield an unusable system
    - Brightness settings may change unexpectedly after reboot
    - Display brightness may be dim after sleep or reboot
    - If Mail is hidden at logout time, it may not be correctly relaunched during a subsequent login but will appear to be running
    - Java applets may not work in Safari
    - QuickTime screen recordings may produce corrupted videos or cause an exception when run on machines with NVDIA graphics
    Game Center
    - In this seed, the Game Center application will view Production data by default. Games in development will be programmatically switched to use the Sandbox server environment
    - No Top Games are displayed on the Me tab and no game recommendations are shown on the Games tab
    - To use Game Center in your game on OS X, you must install a provisioning profile that enables Game Center for your app. Code signing, entitlements, and provisioning profiles are all
    described in detail in Tools Workflow Guide for Mac
    - Multiplayer gaming with Game Center between iOS and OS X is not available in this seed
    - In the Game Center app, game detail information such as game provider, pricing, etc. is not displayed
    - The local peer-to-peer GameKit API (GKSession, GKPeerPickerController, and related classes) is not supported


    Source: Apple
    This article was originally published in forum thread: OS X Mountain Lion Developer Preview 3 Released started by Michael Essany View original post
    Comments 3 Comments
    1. blueaviator's Avatar
      blueaviator -
      Damn... I think it would be easier to post what actually works! It would save you some space! ☻ 
    1. Senyaichiya's Avatar
      Senyaichiya -
      Quote Originally Posted by blueaviator View Post
      Damn... I think it would be easier to post what actually works! It would save you some space! ☻ 
      Haha so true.
      I stopped after iTunes doesn't sync notes.
      Is all this stuff peranant?
    1. Leketner's Avatar
      Leketner -
      Quote Originally Posted by Michael Essany View Post


      Apple today seeded to its registered developers the third developer preview version of OS X Mountain Lion. The release comes more than a month after the last dev preview.

      Billed as "Build 12A178q," the release is too fresh to have many insights into changes native to the new version, but we will all but certainly gain some answers in the coming hours and days.

      For now, Apple does highlight some known issues with the current build. These include:

      - On systems with FileVault enabled, canceling the restart to the Mountain Lion Developer Preview 3 Installer may leave your system unable to present a password dialog at boot time. You
      can repair the problem by holding down command-R to boot to the Recovery OS and then using Disk Utility to unlock and Repair your volume.
      - Installing OS X 10.8 over 10.7.2 or earlier with FileVault turned on may fail
      - Pre-Lion FileVault user accounts are not supported in this Developer Preview
      - Some Apple menu items such as Restart may not work when a sandboxed app is in the foreground
      - iTunes no longer syncs Notes
      - Mail’s photo browser cannot access the iPhoto library
      - Back to My Mac doesn’t work for the first 5 minutes after rebooting
      - DVD Player may not launch after inserting a DVD on some systems
      - Most help topics are unavailable in this Developer Preview
      - In the Recovery HD:
      - Some icons may be missing
      - Network Utility’s Lookup pane does not work
      - Time Machine restoration via a AFP share does not work
      - Restoring from a Time Machine backup via AFP does not work
      - Migration from a Time Machine backup that excludes paths such as /System may yield an unusable system
      - Brightness settings may change unexpectedly after reboot
      - Display brightness may be dim after sleep or reboot
      - If Mail is hidden at logout time, it may not be correctly relaunched during a subsequent login but will appear to be running
      - Java applets may not work in Safari
      - QuickTime screen recordings may produce corrupted videos or cause an exception when run on machines with NVDIA graphics
      Game Center
      - In this seed, the Game Center application will view Production data by default. Games in development will be programmatically switched to use the Sandbox server environment
      - No Top Games are displayed on the Me tab and no game recommendations are shown on the Games tab
      - To use Game Center in your game on OS X, you must install a provisioning profile that enables Game Center for your app. Code signing, entitlements, and provisioning profiles are all
      described in detail in Tools Workflow Guide for Mac
      - Multiplayer gaming with Game Center between iOS and OS X is not available in this seed
      - In the Game Center app, game detail information such as game provider, pricing, etc. is not displayed
      - The local peer-to-peer GameKit API (GKSession, GKPeerPickerController, and related classes) is not supported


      Source: Apple
      As is