I have the RNS-510 Navigation system C Version H04 2660
Although I'm not facing critical issues in my unit, I had noticed there is a new firmware 27xx
so my question is, am I missing something for not upgrading my unit?
I had searched for the differences between what i have and the new firmware and i didn't recognize it.
Did anyone please did that upgrade from 2660 to 27xx and can tell me if it deserve to do that or not?

Kind Regards