I never got an e-mail from Daz, I was just hanging out at their forums and saw it was available. Honestly, I think they rushed the update through, and I know they're already at work on a 7.2 update.

I recently noticed someone talking about Hexagon 2.5 (which was updated a loooooong time ago, apparently) and I checked mine, which was still at 2.1. I don't recall ever getting an e-mail about that, although it might have been mentioned in one of the newsletters. I was still able to get the update, but I wouldn't have known about it except from reading a forum post.

It'd be nice if Daz had update checks built into their software, but, if I had to choose, I'd be perfectly happy to let them focus on adding new features.