YouTube's iOS app has been updated to version 20.22.1, now requiring iOS 16 or later to install and run.iPhone models including 6s, 6s Plus, 7, 7 Plus, and the first-generation iPhone SE are no longer supported by the updated YouTube app.Similarly, the YouTube app for iPad now requires iPadOS 16 or later, discontinuing support for iPad Air 2 and iPad mini 4.Users with older devices can still access YouTube through their web browser at m.youtube.com.