UpdatingAirPortSoftware
Apple periodically updates AirPort software. It is recommended that you update your
AirPort Extreme to use the latest software.
You can select the “Check for updates when opening AirPort Utility” checkbox, or the
“Check for updates” checkbox in AirPort preferences. If you select “Check for updates,”
choose an increment of time, such as weekly, from the pop-up menu to automatically
check for updates.