Welcome to Smogon! Take a moment to read the Introduction to Smogon for a run-down on everything Smogon, and make sure you take some time to read the global rules.
The rankings have changed, but since they´ve changed mid round, we have to play according to the old rules, that means that we have to play on DOU to take into account the pokemon which have gone up to DOU, also, none of the pokemon which have now fallen are allowed.