Yes, and it's still not production-ready, in my opinion.

Ruby gems are still problematic, for example.

They're working on it, but it's not there yet.

Oh yeah... and to the part of your comment where you say it works even better than on a Mac? Not even close. The Mac works so much better than WSL, it's not even funny. Like I said... they're working on it but it's not there yet. :)