Airport Update 1.0 is recommended for all users and includes compatibility improvements for using Time Machine with Time Capsule, as well as AirPort driver fixes. Available via Software Update or as a manual download
The Time Capsule, AirPort Extreme and AirPort Express Base Station with 802.11n* Firmware 7.3.1 updates include bug fixes. AirPort Extreme Base Station with 802.11n* Firmware 7.3.1 also includes security fixes.
This update requires AirPort Utility 5.3.1 or later. Available via automatic software update or as a manual download