Current status: 95/150 supporters
The firmware is loaded to the Nikon sites and can be installed now. There is an update 1.10 for the FTZ adapter as well that hasn't been announced to my knowledge.Both camera and FTZ firmware updated without hiccups earlier today.
How can you check the FTZ-firmware?
You need to download the fw update for the ftz adapter and load onto your memory card, attach the ftz adapter only and check the fw in the menu, that way you can update the ftz adapter.https://downloadcenter.nikonimglib.com/en/download/fw/360.html
I presume that one needs to repeat this process for each FTZ adapter that one has - the camera just being the conduit or "middle man" as it were.