Hello,
Patreon versions are developer builds, which we internally refer to as alpha builds. These are provided to supporters, and in addition to supporting the project, they also help by beta-testing these early versions.
As development continues, we fix the issues reported in Patreon (alpha) builds. Once a build is stable, it is released to public stores such as Itch.io.
This means Beta 44 is actually our latest production build, while Beta 45, 46, and 47 are still in development and only internally available to supporters.
I hope this clarifies things.
Cheers!