Firmware update C1.01
A reader send me a confirmation that Nikon updated the C firmware on his D810 camera to 1.01 in order to fix the thermal issue (white dots) during long exposures:
Black dot in the tripod socket
The C 1.01 firmware update for the D810 is not available for download on Nikon's support page. Like I already mentioned few days ago, this is not just a firmware update fix - a "pixel defect compensation" must also be applied to every affected camera.