-upper floor entrance is now wider and closer to the middle entrance
-the area near the entrance to the mine is now more open and closer to mid
-in the same place the ramp switched places with the wooden raising
-you can no longer double jump from the concrete prop to the sniper's nest
-you can no longer double jump on to the roofs of those small building on mid from ground
all those changes are supposed to make scout less obnoxious and harder to rotate from mid to enemy spawn .