There is now a setting that allows apps to turn wifi on and off. I'm quite sure this is new because I usually kept wifi off and set to automatically turn off after being disconnected for a short time. Google Play was one of the few apps that had the ability to turn my wifi on... Not good for privacy or security!
I also can't seem to find that setting that automatically shuts off wifi now. What changed? Why? How do I revert to the old settings that don't exist?