Apple has just released OS X 10.8.1, its first maintenance update to Mountain Lion, with fixes for Microsoft Exchange, iMessages, Migration Assistant, and more.

Version 10.8.1 is quite small at just 24.2MB, so it shouldn’t take long to download and install. The update can be accessed from the Mac App Store or directly from Apple’s website.

Here’s a list of what’s in the update:

  • Resolves an issue that may cause Migration Assistant to unexpectedly quit
  • Improves compatibility when connecting to a Microsoft Exchange server in Mail
  • Addresses an issue playing audio through a Thunderbolt display
  • Resolves an issue that could prevent iMessages from being sent
  • Addresses an issue that could cause the system to become unresponsive when using Pinyin input
  • Resolves an issue when connecting to SMB servers with long names
  • Addresses an issue that may prevent Safari from launching when using a Proxy Automatic Configuration (PAC) file
  • Improves 802.1X authentication with Active Directory credentials

Notably, there is no mention of whether this update addresses battery life issues Mountain Lion users have complained about. We’ve contacted Apple to see if they can clarify this, but we don’t expect a response.

Mountain Lion photo: California Department of Fish and Game/Flickr

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