Amazon.com: Nikon Z7II / Z6II Experience - The Still Photography Guide to Operation and Image Creation with the Nikon Z7II and Nikon Z6II: Updated for Firmware 1.31 eBook : Klostermann, Douglas, Klostermann, Douglas: Books
Nikon To Release Firmware Update for Z6ii & Z7ii - Adding 4k60P Video & Improved Eye Autofocus [Updated & Confirmed]
New Nikon Z7II, Z6II, Z7, Z6, Z5, and Z50 firmware updates released and available for download - Nikon Rumors
Nikon Z 50, Z5, Z6, and Z7 Firmware Update Released - Improved AF Performances and Stability | CineD