Wow that was a long thread to read, I'm on 1.5 and was thinking not to update to 1.6 any time soon, but now after reading the whole thread I'm not that sure any more.
I live in a place with pretty cold winter conditions, usually less than -0 degrees and sometimes down to -15 - 20 degrees.
So if i stay on 1.5 the craft risk dropping from the sky, and if i go with 1.6 i get a reduced speed at colder battery temps?? I think i choose the latter. Or maybe i wait for 1.7 if its coming soon?
Anyway, what outside temperature can be considered safe enough to fly in without the risk of problems when on 1.5?