OS X 10.8, code named Mountain Lion, has hit another milestone with a third developer release being seeded today among (wait for it…) developers. If you are just such a developer, you can grab it from the Apple Developer Center with a code via the Mac App Store, as it does not automatically update from the store itself. According to TheNextWeb, one of the biggest issues with the Mountain Lion beta is the Messages app, which is an OS X version of the iMessages app you’ll find on your iOS 5 equipped iOS device. The web has been buzzing with complaints about this app, which does handle messages decently but creates an issue with iCloud message syncing on your iPod, iPhone or iPad (specifically, every time you send a message on OS X Messages, your iOS device notifies you with an alert, which could eventually drive you insane).

According to TheNextWeb, these seem to be the major issues at present:

  • 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 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 Work.
  • 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.

Mountain Lion is due to drop this summer.

Source: TheNextWeb

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