If you’re sporting the newest OS X cat, Apple has a major treat for you. Fire up Software Update because 10.5.2 has landed. For me the update weighs in at 180MB, but your milage may vary. Apple has updated a slew of things in 10.5.2. Here are some of the highlights:

• Improved Airport connection reliability and stability
• Adds support for more third party routers with Back to my Mac
• List view, folder view, and an updated background with grid view in the Dock
• Ability to turn off menu bar transparency
• Addresses stability issues related to .Mac syncing of iCal calendars
• Improved accuracy of the Data Detectors feature
• Improved printing performance when using some Microsoft Office applications
• Adds support for certain printers connected to the USB port of an Airport Extreme or Airport Express base station
• Adds RAW image support for several cameras
• Improved accuracy of the grammar checker
• Adds a menu bar option for accessing Time Machine features
• Improved external drive recognition in Time Machine