The Warp tool received a significant overhaul. The introduction of split warp crosshairs allowed users to create control points anywhere on a grid. This gave artists much finer control over distorting specific areas of an image without affecting the surrounding pixels, perfect for fine-tuning the shape of objects or clothing.
This version saw a massive jump in AI accuracy, making it much easier to select complex subjects like hair or fur with a single click. adobe photoshop 2020 v2121 tntdmg link