Apple today released Mac OS X 10.5.6 for its Leopard user base. According to the release note the new Update is recommended for all users running Mac OS X Leopard and includes general operating system fixes that enhances the stability, compatibility and security of your Mac. The update adds features or improves the following parts of the OS Address Book, Airport, Client management, iChat, Graphics, Mail, MobileMe, Networking, Printing, Parental Controls, Time Machine, Safari and General Security. The Mac OS X 10.5.6 weighs 190MB and can be download via the Software Update feature on Apple Menu. You can get more information about new features and download standalone installer from Apple’s Support website.