I heard mention that there were new gracie barra rules and my instructor has been emphasizing new codes on conduct when class starts and ends. We used to all line up across the wall with highest belt ranks on left then proceeding lower to the right. Now we have rows of each color. Purples in the front row, then blues, then whites, with stripes determining where you fall within your own color row. And the other thing is that when youre lining up and you need to fix your gi and adjust your belt, you're supposed to turn around and face the opposite way while you make the adjustments. Weird, but I don't mind the tradition.