As expected, Apple released Mac OS 10.6.5 today. The 10.6.5 Update is recommended for all users running Mac OS X Snow Leopard and includes general operating system fixes that enhance the stability, compatibility, and security of your Mac, including fixes that:

improve reliability with Microsoft Exchange servers address performance of some image-processing operations in iPhoto and Aperture address stability and performance of graphics applications and games resolve a delay between print jobs address a printing issue for some HP printers connected to an AirPort Extreme resolve an issue when dragging contacts from Address Book to iCal address an issue where dragging an item from a stack causes the Dock to not automatically hide resolve an issue with Wikipedia information not displaying correctly in Dictionary improve performance of MainStage on certain Mac systems resolve spacing issues with OpenType fonts improve reliability with some Bluetooth braille displays resolve a VoiceOver issue when browsing some web sites with Safari 5

For detailed information on this update, please visit this website: http://support.apple.com/kb/HT4250.