![I have this firmware on my D7000 , what does A/B means? What happened if I update it, can I find information about it? Do I find it on Nikons website? : I have this firmware on my D7000 , what does A/B means? What happened if I update it, can I find information about it? Do I find it on Nikons website? :](https://preview.redd.it/ba0cnej3kfu01.jpg?width=640&crop=smart&auto=webp&s=e539584658067fd8a69e065031299c76ea0ff675)
I have this firmware on my D7000 , what does A/B means? What happened if I update it, can I find information about it? Do I find it on Nikons website? :
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