http://www.macrumors.com/2008/10/25/apple-releases-airport-extreme-update-2008-004/
Apple has released Airport Extreme Update 2008-004 via Software Update.
The update appears to be Apple's replacement for the recently pulled Airport Extreme 2008-003 update.
Apple has released Airport Extreme Update 2008-004 via Software Update.
This update is recommended for all Intel-based Macintosh computers running Mac OS 10.5.5 and resolves some issues with AirPort connections when roaming in large Wi-Fi networks.
The update appears to be Apple's replacement for the recently pulled Airport Extreme 2008-003 update.