Apple has released an update to Leopard, bringing us to OS 10.5.3. All users running Mac OS X Leopard are recommended to install the upgrade, as it includes system fixes that enhance the “stability, compatibility and security” of your Mac.

The latest update to Leopard should appear in your Mac OS X Software Update.

For detailed information on the update, including what it addresses and different ways to download and install it, go to

Macrumors notes that highlights include:

  • Additional RAW image support for several cameras
  • Addresses an issue with stuttering video and audio playback in certain USB devices
  • Improves 802.1X (Wifi) behavior and reliability and when using Time Machine
  • Includes fixes for Time Machine compatibility with Time Capsule

    Over at Daring Fireball Jon Gruber writes “At 420 MB for the standard update and 536 MB for the Combo update, I think this might be the largest single update ever. Word on the street is that the reason for the delay is related to the fact that today‚Äôs new beta 6 release of the iPhone SDK depends on 10.5.3.”


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