As in the P5 release, it seems CL is only announcing new features. Improvements and bug fixes are not being mentioned, AFAIK. And there were very few in P5. So if you go by past experience, you can forget improved speed or memory handling. But, of course, we won't know for sure til the beta testers get their hands on it. I'm still hoping the new CL crew has better sense than the old one. Overall, for me, Poser 5 was a waste of money.