I'm tempted to launch Poser 5 right now, just to see if I can duplicate all the bugs in that list. I have other things to do, however, so I'll accept your word that they exist.

.... rotating the figure 180 degrees no longer "breaks" conformed clothing.

You fixed the 180-degree bug with conforming clothes? Neat!

Hidden Line display mode no longer crashes when displaying polygons with more than 32 vertices.

32-sided polygons? Where?

Poser's real world units have been re-scaled for greater accuracy ....

Poor geep. He'll have to recalibrate his Poser yardstick all over again.

I'd like some clarification on how ray-traced reflection has been improved. Do reflections now reflect transmapped items properly? Or is that reserved for a future update.