Next to the word is information that describes the software version installed.
You can also determine the software version on your i Pod touch, i Pod nano, i Pod classic, or i Pod shuffle by using i Tunes.
The fastest way to find out if the version of i OS on your i Pod touch is the most recent version, choose Settings→General→Software Update.
If a new version of the software is available, you see the Download and Install button.
i Tunes automatically checks for updates of i OS or the i Pod software and lets you update your i Pod without affecting the music or data stored on it.
The installation doesn’t affect the music or data stored on it.
You need to use i Tunes to install or update the software on an i Pod nano, i Pod shuffle, or i Pod classic, and you can also use i Tunes to update i OS on your i Pod touch.
Connect the i Pod to your computer and select it in the i Tunes source pane (in the Devices section).
The Summary page appears to the right of the source pane, and the software version appears next to Software Version at the top of the page.
By Tony Bove You should always keep your i Pod updated with new versions of the software that controls the device — which is i OS for the i Pod touch, or the i Pod system software for an i Pod classic, i Pod nano, and i Pod shuffle.