In LR CC(6), Adobe moved the "Auto"-Tone button in the development section one button width to the right. Why?
Since the mouse moving from the white balance to the Auto-button is a very often used move, clicking to the old position (in the now empty) is very annoying.
Old Position of the Auto-Button
Why? Is there any reason? Or is this a bug - an accidental move?
I am willing to bet it was accidental, because if I were to move it, I probably would have aligned it under the "As Shot" above it. Either centered or left or right aligned, but aligned in any case.
You either have a really good eye, or your muscle memory is fantastic. Either way it is impressive that you spotted the change.
I would agree, looks like a mistake.