My English is not so good, but if I understood you correctly, then a stable update comes out at Steam.
The last update what was un-stable, and the developer will work on an stable realese which means this could be version 0.3.x. I think that's okay!
I just thought I just spend my money out and get only 1 version of the game on steam an thats it ;-).
when verison 0.3.x is stable i understand the delay for the new release.
hopefully there comes out next time the update 3 month later on steam for another version after 0.3.x.
i cant wait and wanna play the new version with more content because i'm finish with the last version 0.2.8.0.
summary:
on steam there comes out only the stable releases after the patreon release (aprox 3 month later)
if the new version in un-stable it takes more time since the last version to update to the new one
i hope i understand this right ;-)