Why do you want to download earlier versions? Not being snarky here, it sounds like you may be trying to solve a problem, in which case it's better to ask about your underlying issue, as your proposed solution may not do want you want.Where can I download earlier versions?
That said, I don't know if there's a good place to find older versions. If you were on the dev's Patreon, you could probably find old links there; however, depending on how far back you want to go, the old links may not work.