Just later its opening keynote this afternoon, Apple released Os X Mountain Lion Developer Preview iv (build 12A239) and Server Preview 5 (build 12S254j) to developers. Unlike previous programmer previews of Mountain Lion, Apple does not ask developers to expect into any certain issues, perchance because Mountain Lion is goingto ship in July for $19.99 (a GM to come presently?). Apple tree besides does not list whatsoever issues out of the ordinary, as you can see in the release notation after the break.

For those looking to exam the newFacebook integration appear today (much similar Twitter) within Mountain King of beasts, you could download a separate .dmg from the Developer Eye titled "OS X Facebook Programmer Preview." If you are registered with Apple'south paid developer programme, you lot can go the Mountain Panthera leo update on the Developer Middle now. For those who are not, it does not look like you will be waiting much longer to play with this latest beast. Let usa know if y'all notice annihilation: tips@9to5mac.com.

Os Ten Mount Lion Developer Preview 4 Seed Note

Os X Mount Lion Programmer Preview 4 is prerelease software. Practice not employ this prerelease software in a commercial operating environment or with important data. You should back up all of your data before installing this software and regularly back upwards information while using the software. You will non be able to upgrade from the Bone 10 Mountain Lion Developer Preview to the final release.

If an installation of Os X Developer Preview 4 fails, try using Disk Utility from a Recovery Hard disk drive to repair the deejay.

Compages Requirements

The OS 10 Mount Lion Programmer Preview supports the following Macs:

  • • iMac (Mid 2007 or newer)
  • • MacBook (Late 2008 Aluminum, or Early on 2009 or newer)
  • • MacBook Pro (Mid/Tardily 2007 or newer)
  • • MacBook Air (Tardily 2008 or newer)
  • • Mac mini (Early 2009 or newer)
  • • Mac Pro (Early 2008 or newer)
  • • Xserve (Early 2009)

Known Problems

  • Network Migration requires Os Ten 10.seven.3 or later in this Developer Preview

⁃ International users may be unable to enter a Wi-Fi countersign while in Setup Assistant.  Users can select Other Network Options and continue setting up their system without a Wi-Fi network

  • On systems with FileVault enabled, the login window may be displayed incorrectly
  • Rotating an external brandish may crusade a panic on AMD Radeon-based machines
  • QuickTime screen recordings may produce corrupted videos or cause an exception when run on machines with NVDIA graphics
  • Installation of Last Cutting Studio 3 may cause a hang unless Automatic Graphics Switching is disabled in Energy Saver Preferences

Game Middle

  • In this seed, the Game Center awarding will view Product information by default. Games in evolution volition be programmatically switched to utilize the Sandbox server surround
  • No Elevation 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, yous must install a provisioning contour that enables Game Center for your app.  Code signing, entitlements, and provisioning profiles are all described in item in Tools Workflow Guide for Mac
  • Tell-a-Friend functionality is not available
  • The local peer-to-peer GameKit API (GKSession, GKPeerPickerController, and related classes) is not supported

Bug Reporting

This build is being provided to you for testing and development purposes. Should you run into any problems, please submit a issues report using the online Issues Reporter at <http://bugreporter.apple.com/>. Please make certain to include "10.8 (12A239)" in the problems title and clarification. This data will ensure that your bug is processed quickly.

When submitting a issues report, please make sure to include a Summary, Steps to Reproduce, Expected Results, Actual Results, and the diagnostic output generated by running 'sudo sysdiagnose' in the Terminal.

For complete instructions on submitting issues reports, please visit the Bug Reporting page at <http://developer.apple tree.com/bugreporter/>.

Thank you for your support.

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