AirPort: How to tell which AirPort software version is installed on a computer
It's easy to tell which version of AirPort client software is installed on your computer. You can find the latest AirPort software versions on the AirPort support page.
Products Affected
AirPort
Below are two different ways you can do this. Depending on where you look, the same version number may be presented two or three different ways, so please understand that "4.2", "420", and "420.8" may all refer to the same software version.
Method 1: AirPort menu
You could Option-Click the AirPort menu, then choose About AirPort.
Note: The graphic shows AirPort 4.2 versions for an AirPort Extreme-enabled computer. An AirPort-enabled computer would display slightly different versions. The highest AirPort version that you may use and the appearance of your screen will also vary between Mac OS X versions such as 10.2 and 10.4.
Method 2: Installed Updates list
The Software Update preference pane includes a list of installed updates.
- Open System Preferences.
- Select the Software Update pane.
- Click the Installed Updates tab.
- Click the Name column heading to sort by name, as shown below.