I have not made many assets for UE4 with Blender, But static meshes work fine if Blender is setup approprietly.
Epic have two or three livestreams about using Blender.
There is a “Manuel Bastoni Lab” addon for blender to create people.
There is also “MakeHuman”, But I prefer the bastoni lab license.
Maya is probably the easiest to use based on forum comments.
The documentation I have read works for any UE4 version, Except the ones talking about features only avaliable in 4.X+.
I suggest reading/watching tutorials to get started as the documentation is a bit scarce and does not contain much example usage overal.
HTH