Some of the features:
Bridge capability
Dynamic subdivision (you can change edge crease on the fly)
Bevel
Updated transpose line
Add/subtract edge loops
Array mesh
Nano mesh
KeyShot renderer bridge

I must confess i was until recently completely unaware updates from 5-6 are free for registered users. Any idea whether the same will be true for 4R7?

akishichiroji:
As far as I know, this update will be free as well.

I love their free update policy.

I wish I had the funds to afford it - it looks really fun to use.

afaik all versions of zbrush are product lifetime licenses.. I bought it back in 2007 (v3.1?) and have never paid for an update.

Sands: I've done traditional polygon modeling for many years. So, I always gave digital sculpting the side eye. But, Zbrush won me over when it comes to character related objects.

I'm still not convinced they are the best for hard surface modelling. But, these upcoming tools that give more edge loop control might change my mind.

Sands: Agreed. Even the upcoming tools pale in comparison to traditional ones from what I have seen so far in the video. But, it at least gives people that want to use Zbrush instead of a

modeler a chance to do so without breaking their computer in frustration. Basically, they get a finer amount of control for hard surface projects.

More than likely, I'll stick to my modeler for hard surface unless I'm doing a hybrid project.