Two new result types are added: the Flood rise rate result type and the Flood arrival time. With these result types more insight in evacuation routes for flooding scenarios is provided. See for more information this blog: https://www.tygron.com/nl/2021/05/20/high-resolution-flooding-of-the-bommelerwaard/ 

Explanations from the CoP 2021 about this feature: (In Dutch only)