abc are just hotfixes, numbers are "real builds". the first number is basically binary 0 - game not done, 1 - game full done.
second number you can take as % of what I consider done from the whole "game", not content wise, more like work wise. so rn it being 0.4 build - 40% done. and the last number is just an additional number to distinguish stuff. Ngl I am pretty bad at milkin, esp lookin at some other projects, they got the milk game down. But I just cant be fucked. Hell I already have problems forcing myself to script stuff after drawing sessions, if I had to force myself to actually sell/market it, maaaaaaaan. Tho donate $50 rn or I am gonna start lvling an alt in WoW. Thats a threat.