I'm just coming back to PM after demoing it a few times in recent years. I've notice a re-design of the IPTC Info window in the current version. Previously all fields were presented in a static window in 3 quadrants, with the thumbnail in the 4th. Now only the left side of the window is used, requiring a scroll bar to access all fields.
In my humble opinion I see this as a big step backwards - editing IPTC data now takes longer and it's easy to miss fields during scrolling. I'm sure there was a good reason for the change, but I'd like to see a return to the old window format with no scroll bar.