I have a D800. I have downloaded the new firmware to my CF, no problem. When I open the camera menu to "Firmware version" and then open that I get the options for A, B and L and below that only the yellow line that says "DONE" - I do not get the yellow line that says "UPDATE."
Only true if you shoot RAW. If you also have or only have a JPEG, then the Lens Distortion profile is applied in the JPEG that the camera produces. So download and update your camera firmware for the Lens Distortion data, IMO.
I had articulated my question better, more specific, in another forum that Jason answered with a more deefinitive response. Thanks Jason for the education that everyone enjoys on Nikonians. Jim