The BMS is a custom modular design that is communicates with the controller via the Frame PCB/hub. (It does have its own buzzer and external LED support for alerts). The firmware is still being written but initially we plan on just alerting the pilot and not shutting down the system. Expect alerts to be focused around too high or low cell voltages and high temperatures etc. It wont handle charging and discharging.
There will be lots of flexibility on how much authority we want to give the new electronics. We will be tweaking and improving all of it with updates as we get feedback and continue testing.
It’s important to reiterate that new BMS and the new hub are big steps for us towards our vision of a revolutionary flying experience. However, as mentioned in the release notes not every feature will be available initially and we always appreciate help with firmware and testing.