It's turned me into a proper 'old man' a lot of the time. (I am old, but that's another matter). Funny enough though, I did actually use a bit of the performance potential today - forgot how well it can go.
I've got COMAND, so can't DIY map updates - have to get it done at a dealer. Assuming I was told the truth today (and I think I was) current version is still 2019 V13 which I had put on the car in March. There's a thread in another section here that seems to confirm that too.
Sad to say, my opinion of dealers was somewhat coloured by the one I bought mine from. Simply everything after taking my money was just all too much bother, so I'm not surprised your maps are out of date. That said, it is really up to the original owner to keep them updated while its under the initial 3 year warranty, after that, it's very much a pay as you go deal. It's been my experience (and others too by the looks of it) that in-warranty map updates is about the last thing dealers want to be doing if they can at all fob you off. It's one reason why I changed dealer for servicing. (and don't get me started on the servicing....)
Frankly, the nav on mine is such an idiot, I won't be paying to update the maps nor continue to subscribe to the traffic info.