In case you want to know what’s new in iOS 15. I didn’t follow too much this year’s release, so this short article is quite good: it gets me up to date without the need to read a lot :)
This year’s update is also a bit different because you don’t have to update to iOS 15. If you’re fine with iOS 14, Apple won’t force you to make the jump to iOS 15. You’ll still receive security patches. Some people will simply dismiss iOS 15 altogether.
It seems like a small change, but it actually says a lot about the current state of iOS. Apple considers iOS as a mature platform. Just like you don’t have to update your Mac to the latest version of macOS if you don’t want to, you can now update at your own pace.
From here: iOS 15 adds all the little features that were missing | TechCrunch.