I was referring to this: Firmware Release Note v5.02.134 under “known issues / limitations”. I think this is what most people will first refer to and it should be correct and not “surprise” people later with things that disappeared without warning.
The other point I forgot to mention, is that in the OS5 app under “Rename” I still can only rename the file not change the file extension. This is also pretty significant and people need to know it’s gone.
The info in the document you refer to seems to be actively wrong, so maybe I understand it wrong??? For instance, it claims that under OS5, sort by date or size, is available. Not on MY ios app (I did download the slightly newer one)???