Nikon has just released new firmware updates for Z5, Z6 and Z7 full frame mirrorless cameras today. The main change for a single fix related to the MB-N10 battery pack. You can download firmware updates below:
“Fixed an issue that occurred when the camera was used with an MB-N10 battery pack with two batteries installed and an EN-EL15 or EN-EL15a in Chamber A, namely that the camera would sometimes fail to switch to the battery in Chamber B when the battery in Chamber A was exhausted.”