Apple Releases Snow Leopard 10.6.5 – Back Your Hard Drive Up Before You Install

Apple has released Snow Leopard 10.6.5. This is a MAJOR software update and it should installed ONLY if you have a TESTED and WORKING back up system, and that you’re not in the middle of a production deadline.
Our advice for MacMedics clients regarding this update, is NOT to install it right away. We recommend waiting at least a few days before installing it. Also, if you have multiple Macintosh computers that need this update, just install it on one computer to start. If you’re a MacMedics client that we see on a regular basis, we will install this update for you when it has been fully vetted.
URGENT: Every time Apple releases a software update, we see several dead hard drives the next day. Please read our UPDATE WARNINGs page which can be found here, before you install this software update.
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.
For information on the security content of this update, please visit: http://support.apple.com/kb/HT1222.