Apple has released an update to its Leapord OS for Macs, bringing it up to version 10.5.3.
Apple claims the update adds features to improve the stability, compatibility and security of the operating system.
Mail, iChat, iCal, Airport are also updated with the patch. Other updates include a fix for stuttering video and audio playback in some USB devices, iTunes Artwork and the addition of RAW support for a number of digital cameras.
Apparently the update also includes improvements for 802.1X behaviour and reliability on AirPort and reliability enhancements on Time Capsule.
Link: Daily Tech