Your mileage may vary.

I tried 4.5 (Mac) but I have modded obj files for things that would load in DAZ 4 and in 4.5 they just won't appear at all.

Worse still, opening files from DS4Pro that had visibility turned off meant that they could not be made visible again in 4.5.  . . . . so I went back to 4.

MAybe if I find replacements in Genesis form for the V4 files I need most I will switch . . but I'll wait and see.

So far V5 has not been as good as V4 in my renders. The mesh is somehow different, perhaps lower resolution?