The files that start P13 have new materials setup to be SuperFly ready. They are also reorganized into a more logical manner so you can for the most part see something in figures and find its companions in the same location in the rest of the categories.  They have added a couple of more scenes and props that were not there before.  I haven't done a complete check since i only just got most of the P13 content.

Poser 5, 6, 7, 8, Poser Pro 9 (2012), 10 (2014), 11, 12, 13