2.0 is a full rebuild from the ground up, with new textures, less bloat, and overall a more stable experience
Some of the broad strokes for 2.0 are as follows, and it goes without saying, but this update will not be save safe
Legacy of the Dragonborn removal. This is gonna upset some people, but I have plans for a Legacy of the Dragonborn list, Empyrean just isn't it. LotD fell out of scope for what I wanted to achieve with the list, and added a ton of unneeded changes
Seasons removal. As pretty as Seasons of Skyrim is, it was almost certainly designed with a non survival playthrough in mind, and despite my best efforts, I could not get Frostfall to cooperate with the Season changes in a way that I was happy with.
Hanging Black Screens. In all of my testing with 2.0, I believe I have finally fixed this. It seems it was simply a load order issue, and one that has been addressed.
A plethora of other changes to the list, to help bring it in line with what I truly wanted Empyrean to feel like. Seriously. It's almost a brand new list.