Apple today released OS X 10.8.1 Mountain Lion via the new Software Update mechanism that's built into the Mac App Store. Users with Mountain Lion installed will see the update while running Software Update from System Preferences or by clicking on the Updates tab at the top of the Mac App Store.
The associated knowledgebase article states that the new code includes general operating system fixes that improve stability and compatibility, including the following fixes:
- 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
Miraculously, the delta update weighs only 7.28MB on my MacBook Air 13-inch and standalone updater is only 24.2MB indicating that Apple has vastly streamlined the updated process in Mountain Lion (Lion combo updated weighed in at as much as 500MB).
There's no word (yet) on if the 10.8.1 update improves the battery life issues experienced by many MacBook users running Mountain Lion.