Reprinted from TidBITS by permission; reuse governed by Creative Commons license BY-NC-ND 3.0. TidBITS has offered years of thoughtful commentary on Apple and Internet topics. For free email subscriptions and access to the entire TidBITS archive, visit http://www.tidbits.com/ OS X 10.8.1 Targets Bugs, Improved Battery Life Agen G. N. Schmitz Apple has released the first update to OS X Mountain Lion (version 10.8.1) with fixes for a variety of specific issues that have been reported by users since the big cat was released in July. However, the [1]release notes fail to mention perhaps the biggest tweak in the update ' a substantial improvement in battery life for Mac laptops. Shortly after Mountain Lion was released, MacBook Air and MacBook Pro owners reported on [2]Apple's support forums that running 10.8 caused significant battery drainage issues, with some complaining that battery life was reduced to almost half the normal amount. [3]Ars Technica then ran what they called 'real world' tests on its MacBook Pro with Retina Display (which, according to Apple, should have an 8-hour battery life on a full charge), and their testing results never yielded more than 5 hours and a few minutes of run time. Then, earlier this week, a [4]Softpedia article quoted an unnamed developer running the 10.8.1 developer seed who said that the update has fixed the battery drainage issues and should return battery life back to normal. In its published Mountain Lion 10.8.1 release notes, Apple states that the update squashes a bug that prevented iMessages from being sent, improves Mail's connection to Microsoft Exchange servers, addresses an issue with playing audio through a Thunderbolt display, and improves stability with Migration Assistant. The update also fixes problems with connecting to SMB servers that have long names, Safari's inability to launch when using a Proxy Automatic Configuration (PAC) file, and Pinyin input (used for typing Chinese characters) making the system become unresponsive. The Mountain Lion 10.8.1 update is relatively small: just over 7 MB via the Mac App Store or 24.2 MB via direct download from Apple's site. References 1. http://support.apple.com/kb/DL1571 2. https://discussions.apple.com/thread/4135250?start=0&tstart=0 3. http://arstechnica.com/apple/2012/08/tests-show-mountain-lion-may-indeed-degrade-battery-life/ 4. http://news.softpedia.com/news/Exclusive-Developer-Confirms-OS-X-10-8-1-Resolves-Battery-Drainage-in-Mountain-Lion-287166.shtml .