iOS Auto-sorts New Stock Apps? I just updated my iPhone to iOS 10.2 and went looking for the new TV app. I was surprised to not find it on any of my home screens! Instead, it had been placed in my "Apple" folder, where I keep most of the (semi-useless) stock apps. It was even alphabetized correctly, having been inserted between "Tips" and "Voice Memos"!

How long has this feature existed? Does anyone know the history of this happening? Is it something that Apple has advertised?
The TV app is not new, Apple just renamed the Videos app. 

You probably had the Videos app in the same location and when it was updated it just appeared to be placed alphabetically. In reality, since 'T' is close 'V' you might have just thought it automatically sorted itself.