Hi Roy, thanks for reading
Hi Roy, thanks for reading and good question. While the Chevy Bolt does have the ability to receive over the air updates like a Tesla, in reality GM sends them very infrequently.
It seems reasonable to think that they could update the charge profile via a software update so that it charges at its maximum rate for longer, but again this is very unlikely to happen as the current model is to sell you a new car, not upgrade one you've already bought... it's simply not in the legacy automaker mindset (yet!)
With regards to the max 55kW, Chevy's battery engineers have confirmed that is dictated by the car's wiring and couldnt take more. That's presumably why they've altered the charge profile on the 2020 Bolt EV to gradually decrease after 50-55%, as a Tesla does, rather than stepping down the power abruptly. It's not as exciting as a higher max rate, but it does make more of the time you spend fast charging in the upper half of the battery. Thanks, Steve.