Question: What happen to the old ios system files after updated to the new one
i'm kinda wondering about the process of updating to new ios on an iphone...
after i updated my iphone to the new ios, then what happen to the old ios system files ?
does it become residue that consume some portions of my iphone storage ? or it is just simply wiped out from the iphone ?
iPhone 5s, iOS 10.3.3