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Thursday, August 23, 2012, 08:20 am PT (11:20 am ET)

Apple releases Mountain Lion OS X 10.8.1 with iMessage, Migration Assistant fixes

Apple on Thursday released OS X 10.8.1, the first security and maintenance update for its Mountain Lion operating system, featuring fixes for iMessage, Migration Assistant, and audio on Thunderbolt displays.

OS X 10.8.1 is now available for download through the Mac App Store. Users can also obtain a manual installer of the update direct from Apple.

Apple's release notes state that the update will improve the stability and compatibility of a user's Mac. The list of fixes provided by Apple are:
  • Resolve an issue that may cause Migration Assistant to unexpectedly quit
  • Improve compatibility when connecting to a Microsoft Exchange server in Mail
  • Address an issue playing audio through a Thunderbolt display
  • Resolve an issue that could prevent iMessages from being sent
  • Address an issue that could cause the system to become unresponsive when using Pinyin input
  • Resolve an issue when connecting to SMB servers with long names
  • Address a issue that may prevent Safari from launching when using a Proxy Automatic Configuration (PAC) file
  • Improve 802.1X authentication with Active Directory credentials.

Only two developer previews of OS X 10.8.1 were made available prior to Thursday's official launch of the software. Mountain Lion became available on the Mac App Store less than a month ago, on July 25.

Just this week, Apple began inviting developers to begin testing OS X 10.8.2, signaling that the release of OS X 10.8.1 was imminent. No details are yet available on what fixes OS X 10.8.2 may provide when it eventually debuts to the public.