P100 apparently is just a different UI, no functional improvements. It does not look like they are picking up the community changes.
The GCC community app adds a new xy display mode, a settable voltage output level on the function generator, plus NONE and PWM. PWM can be adjusted from 0% to 100% duty in 1% increments.
So the community version is 251 with added features (plus bugs) and GCC compiled. I don’t think the 253 code changes were ever published as open source. Does anyone know what was changed between 251 and 253?