Alright, I might be going nuts here, but I cannot recall prior to this update whether or not they added these parts, and nobody has mentioned it yet, so let's bring it up and see what happens.
3x3 plate, and inverted 2x2 tile.
To the best of my knowledge, these two elements have never been in LDD prior to this update, nor do they exist in the real world. Any insight, or am I just crazy?