Amazing this is still going on! Woo!They weren't fixed within a month or so iOS 10, yet that ios 10 is praised and used as an example of perfection. The double talk is just so prevalent that saying that it's silly would just be silly.
Why isn't anyone acknowledging Radeon's valid points, and altering his comment history? If I may, his theory is:
1. iOS is best on the phone it came out with, and
2. Any subsequent iOS version on that device slows it down in perceptible ways.
Did I get that right?
-iphone7 isn't as good with iOS 11 as it was with iOS 10.
-iPhone X will probably handle iOS 11 quite swimmingly.
It's really not much of a stretch to believe that a current iOS on an old device isn't as snappy as it was on the iOS version the phone shipped with.
The fact that iOS releases have problems upon release and need updates to clear them out (stutters, resprings, etc.) is a separate issue, as what can be successfully argued is that the final version of iOS on the device released the same year will be better than the final iOS releases of any subsequent year.
Congratulations for getting through my post heh. it seems kind of long and dense.