This conversation has been merged. Please reference the main conversation: Lightroom CC 2015.8: Fit to Screen behaviour has changed
I want the old Fit to screen behaviour back. So the best way should be an option to select new or old behaviour.
I can't work with the new as my 4k screen would extremely zoom in in very low resolution pictures, that's very ugly and on the other hand with the fill option many of the pictures bigger than my screen are cropped by the screen.
temporary solution - I installed the old version. But this can't seriously be THE solution!!!!