New firmware can be downloaded from https://vesc-project.com
Surfdado firmware is published as github releases here:
Releases · surfdado/bldc (github.com)
Make sure you pick the right file for your VESC - LFOCv3 is not equal to LFOC !!!
Note: there’s also my “still in beta” ATR firmware, which you can find here if you search for ATR - but this is only recommended if your board is already working and behaving well in general