Apple has posted AirPort Card Update 2004-08-31, which improves reliability in mixed 802.11b and 802.11g environments. According to Apple, the update is recommended for all customers with AirPort-capable computers running AirPort 3.4 and later, including AirPort 4.0. The company also said that after this update, the AirPort Driver and AirPort Extreme Driver will each be upgraded to version 3.4.3. Editor’s Note: The update is presently only available via Software Update.