Apple has just released Mac OS X 10.5.6 with several fixes and tweaks. Though there are a number of notable improvements included with the update, MobileMe users will rejoice with the improvements to syncing with the service to and from a Mac. "Contacts, calendars, and bookmarks on a Mac automatically sync within a minute of the change being made on the computer, another device, or the web at me.com," according to Apple.

A few other fixes caught our eye as well. Graphics enhancements and performance improvements are included, and there's a fix specifically for those having video distortion issues with certain ATI GPUs. Mail has gotten some small fixes, as well as overall performance and reliability improvements. Networking gets several improvements, including improved Airport connections, particularly when roaming a large network. AFP and TCP connections are improved, as well as compatibility with AT&T 3G networking cards.

Printing from Adobe Creative Suite 3 apps is markedly improved (thank you, Apple!) as well as working with certain Brother and Canon printers via USB. Time Machine also gets some love, particularly when working with a Time Capsule as the backup volume. And, the 10.5.6 update adds a Trackpad System Preference pane for notebooks. If that weren't enough, Mac OS X 10.5.6 Update "improves the performance and reliability of Chess." Yes!

In addition to the bug fixes and improvements, the update contains all the security enhancements included with Security Update 2008-008. Mac OS X 10.5.6 can naturally be installed via Software Update, but delta and combo installers are available as a separate download. Mac OS X Server also gets some 10.5.6 updating as well. In all, it looks to be a solid update for Leopard users.