Is the Sencha Cmd 5 release or still beta?

As ExtJS 5 was just released, I'm going to try to upgrade our ExtJS 4.2.1 app to 5.

I downloaded Sencha Cmd 5, but I'm wondering, is Sencha Cmd 5 still in beta, or is it release quality now?

Is it safe to upgrade my ExtJS 4.2.1 app using Sencha Cmd 5, or should I wait?