Every time I got a new iPhone, I restored the previous image on a new phone (3GS->4S->5S->6S Plus). My XS is arriving today and I wonder if I should just start fresh. I cannot imagine that there's no old code/bugs/etc lingering in those backups accumulated over ages. I guess a lot of my info would just populate from the iCloud including iMessages and I could manually set up the rest. It's extra work, of course. Should I bother?