I've tested the new release yesterday and I've noticed that the support now has a perimeter (and is closed on top, too). I'm not sure if this is on purpose and I'm not sure if I like it. I was looking forward having the support threshold fixed. I was using rectangular grid since it was introduced because it never had any failures ( while rectangular support often had). It was more difficult to remove because of the more rigid structure and I cut it in pieces and removed it carefully bit by bit. I afraid this won't work now with a wall surrounding the support. Is there any advantage in it?