There are videos at:
https://my.carbide3d.com/#Design_with_Carbide_Create
and
and I’ve written a bit at:
https://willadams.gitbook.io/design-into-3d/2d-drawing
and
Usually new features are announced on the blog:
https://carbide3d.com/blog/create-big-file-update/
or on the forums:
If there’s something you need to know, let us know and we’ll look into this with you.