2.x to 3.x was like that too, I basically had to start over. If you're starting a new project (like I am) I think 4.0 is the only choice. 3.x has awful 3D and

2.x to 3.x was like that too, I basically had to start over. If you're starting a new project (like I am) I think 4.0 is the only choice. 3.x has awful 3D and even worse presets, GDScript can only be used realistically without the static typing features since they break all the time (for 4.0 they rewrote the whole thing just so they could fix static typing). C# really feels like something that was bolted on even years later. It's not hard to see why 4.0 is such a breaking upgrade, many of 3.x problems aren't surface level, since those were ironed out long ago.