Link to online user guide for iPadOS 15?

Hi there!

I hope this link helps.

Here is everything to know about Ipad. https://support.apple.com/guide/ipad/welcome/ipados

Take note that you can search on Apple's website what is new in iPadOS 15.

Good luck!

The iPad User Guide is available both online using a web browser (such as Safari), or as an Apple Books download:

Online > iPad User Guide - Apple Support

Download > https://books.apple.com/book/id1567104892

You are very welcome.

The Guide in its two different formats, whilst containing essentially the same information, are usefully complimentary. When learning about a particular feature, the Book version is considerably more “readable” - but for quick lookup, the online guide is very often the quickest route to needed information.