Battery drain fix (it works for me at least)
Since beta update i feel that my 6+ start to be bit warmer/hot very soon and that location arrow is almost all the time present at status bar. Also under battery usage i saw only a bit higher "Home & Lock screen" consumption.
I checked location service, but haven't seen any purple/running one. I tried also play a bit with widgets and i saw, that there is also one called traffic, which is not visible. I shut him down, but it haven't helped.
Than i tried to go again to Privacy -> Location Services -> scrolled down to System Services where was under "Product Improvement" a Routing & Traffic switch with purple arrow. I turned this function off and it helped immediately.
Now, after 12 hours i can say, that i finally observe no strange battery drain.