From my personal experience, they have gotten better, but they haven’t unlocked any new capabilities. They’ve just improved at what I was already using them for.

At the end of the day they still produce code that I need to manually review and fully understand before merging. Usually with a session of back-and-forth prompting or manual edits by me.

That was true 2 years ago, and it’s true now (except 2 years ago I was copy/pasting from the browser chat window and we have some nicer IDE integration now).