This update is available for all Apple 802.11n Wi-Fi base stations including AirPort Express, AirPort Extreme, and AirPort Time Capsule. It contains fixes that:
● Resolve an issue that may cause AirPort Time Capsule to report that the backup disk is in use
● Resolve an issue that may cause an IPv6 Tunnel error
● Resolve an issue that may intermittently cause a loss in Wi-Fi connectivity with iOS devices
Note: This firmware update is for all 802.11n AirPort base stations.
For information on the security content of this update, please visit: http://support.apple.com/kb/HT1222