First, congratulations! This is a really good release, I've been waiting for Nim concepts.
> I tried thy example from the manual but the compiler complains about > undeclared identifier vtref They're not in the compiler sources at all. This section should be removed from the manual, or the feature added. I was looking forward to trying this out, in the hope that we'll see `method` deprecated if there's an easy to use alternative for dynamic dispatch.