Apple's first update for its OS X Mountain Lion operating system is now available. The update became available on Thursday afternoon and includes mostly minor bug fixes for the OS that "improve the stability and compatibility of your Mac." The details can be seen on Apple's support page concerning the update.
Issues that have been fixed or improved with the update include Migration Assistant unexpectedly quitting, playing audio through a Thunderbolt display, iMessages that are prevented from being sent, system lock-up when using Pinyin input, connecting to SMB servers with long names, and Safari not launching when using a Proxy Automatic Configuration (PAC) file.
The update also improves 802.1x authentication with Active Directory credentials and improves compatibility between the Mail app and Microsoft Exchange servers.
Apple recommends that OS X Mountain Lion users back up their system using Time Machine before performing the update. After that, it's as simple as clicking the software update option under the Apple menu.