Most notably, there’s a brand new rank being added to Competetive called ‘Ascendant’ that sits between Diamond 3 and Immortal 1. Recommended Videos Today’s Patch 5.0 notes explain: ...

Moved the rank MMR targets that determine rank down, due to the addition of the new Ascendant rank, for all ranks below Ascendant. Moved the ranked target for Immortal 1/2/3 and Radiant up.