No noticeable difference in display
I’m writing this short post just to show this post has no point
I don’t see anything in the threads about what this wording meant but I don’t see any changes to Retina support.
Here’s a before and after showing it had no noticeable effect. Photoshop CS6 had Retina (HiDPI) support before and after this update. (As a side note, why does Adobe call it HiDPI? Shouldn’t it be HiPPI?)
Reading the forums about this will get you other information about this update. It appears to have fixed a “Trial Screen Errror”. I don’t see this in the update window nor have I witnessed any issues. I am looking forward to the Blur and Liquify non-destructive editing though.