The update from 3.01 to 3.1 was released today. There are several enhancements and fixes. For me the key enhancement is:
"Improved focus accuracy for low-contrast subjects during burst photography with [Wide-area AF (S)], [Wide-area AF (L)], [Wide-area AF (C1)], [Wide-area AF (C2)], [3D-tracking], or [Auto-area AF] selected for [AF-area mode]."
It can be accessed here:https://downloadcenter.nikonimglib.com/en/download/fw/486.html
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