The radio doesn't work as well as it should in 2.0 final for a couple of reasons. But if you don't have a radio module, I can see no reason not to upgrade to it. If you do, we can go into it further -- there are some workarounds.

But the final v1 release was 1.3. I don't think there were any big bugfixes in there, though. And I can't see anywhere it's available anyway.