Nikon tomorrow will officially announce new firmware updates version 1.10 for Nikon Z6 II and Nikon Z7 II. The new firmware will be available for download on February 25. The details of new firmware is that it will introduce improved eye AF performance and 4K UHD 60p support for the Z6 II.
From Nokishita:
It seems that Nikon will announce the details of CP + content on February 18th. Details of firmware Ver1.10 for “Z 6 II” and “Z 7 II”, which will be downloaded on February 25, should also be announced (main updates are improved pupil AF performance and 4K UHD / 60p support for “Z 6 II”. ).