User blog comment:HaLo2FrEeEk/Full Dawnguard playthrough coming Tuesday!/@comment-124.183.121.221-20120708060522/@comment-430612-20120730154228

The "Beta" wasn't really a beta, it was the full version of the DLC, some people just got to play it early and leave their thoughts on the Bethesda Blog, I highly doubt that Bethesda would have risked messing something up by doing last minute bugfixes in the two weeks between when the "beta" testers got the content and when it was released.