With v0.15.1, a few changes occurred, namely even more increased air control. Another thing I noticed while playing v0.15.1 is that the strafe jumping seems to be fixed. Either the strafe jumping or the overall max height for jumping has been decreased, because I can no longer jump as far as I used to be able to. The increased air control is a much welcomed update, but if my observations are correct, in my opinion that makes version differences pretty important to distinguish. Granted, Clustertruck is in alpha, but if speedrunners continue to run it in its alpha stage, maybe we as a community should decide how we're going to handle these potentially largely affecting updates. Thoughts?

I agree that it's significantly different than it was in the previous versions, and it's much easier to catch yourself now (and you can now jump on objects you previously couldn't). Perhaps distinguish by Alpha version ("Alpha 0.1.5 - All Levels", "Alpha 0.1.5.1 - All Levels")?

It seems that v0.15.1 doesn't really hinder our runs as a community, considering MM4005 just got WR with the new version. Perhaps as our times improve more and get closer to our sums of best, newer updates may impact our times more. But for now, I guess this isn't a big concern, but we may want to definitely keep the thought in our minds.