As we expected, Apple today released OS X 10.6.5 for Mac users to install. The update improves a number of features, including graphics drivers, aspects of the printing system, OpenType font management, and a number of networking details. The update is rather large at between 500MB and 700MB via software update, depending on the system being updated. It should also show up in standalone Combo and Delta updaters (expect these to be much larger in size than the update via Software Update) on the Apple Support Downloads page soon. The specifically updated features according to the installer include the following: For more information about this update, see About the Mac OS X v10.6.5 Update. As always, be sure to fully back up your system before applying this update, and possibly consider allowing others to test it before installing it yourself. We recommend you follow our steps in preparing for and installing OS X updates, especially if you have had problems with your system (slow-downs, crashes, etc.).