[forkerenok]

I'm somewhat impressed that such a detail hasn't leaked through Apple's walls in all these years. Tells a lot about secretive culture at Apple.

[ouid]

My reading of the article was that it's a pretty new "feature". I'm running iOS 9.1 on a 5s, and it neither shuts down in the cold, nor runs slower than it used to.

[EpicBlackCrayon]

I have a hunch that it isn't, and they tweaked the algorithm around iOS 10, which made it a lot more noticeable.