I have v4.2.0 if anyone wants it for the M3 Zero.
Since I'm new, I can't post links, so correct the following:
Standard dropbox url with: /s/tufro6swbaholzh/F_CORE_v4.2.0.zip?dl=0
I would have only got it from the official site m3adapter before it went offline, and also have a bunch of MD DS...