Nikon announced firmware updates for the Z7II, Z6II, Z7, Z6, Z5, and Z50 mirrorless cameras - Nikon Rumors
Nikon Firmware Update For The Z9, Z6 II & Z7 II Cameras | ePHOTOzine
Nikon releases the upgraded firmware for its full-frame mirrorless cameras — Version 2.00 for the Nikon Z 9, and Version 1.40 for the Nikon Z 7II and Nikon Z 6II | News | Nikon About Us