Updating ipod software
Previously, i Pod Touch users had to physically connect their device to a computer and use i Tunes to download and install an i OS update; now you can simply update your device over a standard Wi-Fi connection. Select "General" and tap "Software update." Your i Pod Touch will now check whether an i OS update is available for download or not.
Next to the word Version is information that describes the software version installed.
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.
i Tunes includes updates for all generations of i Pods and can detect which i Pod models you have.
i OS 11.2.2 offers implements fixes in Safari and Web Kit designed to mitigate the effects of the Spectre vulnerability The easiest way for most people to download i OS 11.2.2 is over-the-air, directly on their device. If you have limited space on your device or software update isn't working for whatever reason, you can update using i Tunes.