Apple's paper-thin notebook machine has received a fairly major software update, reports The Unofficial Apple Weblog.
Accessed via the usual updating system within OS X, the patch addresses issues with video playback as well as – primarily – issues with heat. The CPU cores in the MacBook apparently don't idle as they should out of the box – resulting in the slimline unit running very hot with extended use.
If you're an Air user rushing out to install this, the update comes with a word of warning: if you've installed a third-party workaround like CoolBook, uninstall it before running the update.