only thing I've noticed so far is that you cannot really save your custom shaders!!  DAZ goes through the procedure and you assume the shader has been saved, but when you try to apply it nothing happens!! (it's like it saved a blank file!). I've tried saving in 2 available formats dsb and ds. Your safest bet to save any shaders is to save all materials either as a whole or individually.

Other than that, it seems materials are handled in a much better way, and rendering options have been enhanced with shadow map size and renders are a bit faster and more precise.

overall, great improvement  when compared to the 1.3.10 version!