Just to clarify, 6.2 is currently in an early access release, not beta. It is fully supported, but GTAC just needs to be contacted to gain access. The planned GA is mid March.
there were new release notes for 6.2.0.199 yesterday, a lot of fixes regardig NAC. Guess its already available under controlled release if you contact GTAC. But its always a good idea to be patient until the GA date 🙂