Apple on Monday evening posted the update 10.5.4 for its Mac OS X Leopard operating system. This release “includes general operating system improvements that enhance the stability, compatibility, and security of your Mac.”, Apple said. This release is believed to contain codes that support the upcoming MobileMe online service that will debut on July 11. The 88MB download is available via OS X’s Software Update mechanism or from Apple Downloads website.
Apple Mac OS X Leopard 10.5.4 update includes all recent security updates and resolves issues with several system and third-party applications, such as saving and re-opening Adobe Creative Suite 3 ﬁles on a remote server. It adds RAW image support for additional digital camera, improves L2TP VPN client reliability and solves AirPort reliability issues. The update also delivers fixes to improve the stability of iCal calendaring application. Read Apple’s support document for details of Mac OS X 10.5.4 update.
This update is widely believed to support Apple’s new MobilMe online services that will replace the .Mac service coming July 11. MobileMe costs $99 per year and comes with 20GB of storage, an email account with a @me.com domain, contacts, calendar, photos and file sharing services. You can synchronizes these information between Macs, PCs and iPhones so that everything is up to date.
Besides Mac OS X 10.5.4 Leopard update, Apple also released security updates for Mac OS X Tiger, Mac OS X Tiger Server as well as Safari 3.1.2 for Mac OS X Tiger. These updates replicate the security fixes featured in 10.5.4 Leopard update.