General fixes in 10.6.4 include improved compatibility with some Braille displays a fix for a problem where the keyboard or trackpad becomes unresponsive more reliable VPN connections a fix for a display sleep issue and a speaker volume issue in MacBook Pros (Early 2010) better copying, renaming, or deleting files on SMB servers and several more. They address two specific issues: improved compatibility and performance for graphics issues and better compatibility with larger format SDXC memory cards, no doubt for the mini’s new SD card slot. Those who plan to purchase one of the new Mac minis will be especially interested, as Apple has dropped a pair of special 10.6.4 updates for Mac OS X and Mac OS X Server pertaining to the new desktop model. The update includes a variety of enhancements, stability improvements, and security fixes that are recommended for all users.Īpple details three types of of updates contained in Mac OS X 10.6.4: general fixes and improvements, fixes and improvements for Aperture 3, and fixes and improvements for external devices. As if a new Mac mini and iPhone pre-orders weren’t enough, Apple on Tuesday also announced the release of Mac OS X 10.6.4, the latest update to its Snow Leopard operating system.