dev hasn't made a commitment to keeping saves functional between versions, consider not playing every update if it's a problem.
gonna wait for the next elyon update personally.
well, unless they go back and change something, it's usually not an issue.
not to mention, with a good gallery, it's not as needed, especially since more recent version saves aren't affected.
and the project is big enough that, the game isn't really getting 'changed' all that much, just added to, at this point.
so, it's not like some ver 0.3 title where there's drastic changes that are probably expected. most versions WERE perfectly fine to use old saves. but, changing some of the i guess early/mid game stuff to fit patreon's rules did fuck up saves made before then, but afaik, hasn't really screwed stuff up since, little unfair. i mean, according to teh changelog, the last time there was a save compatibility issue was with version 13 to version 14, and that wasn't because the creator just, didn't bother trying. he HAD to go and change some shit, in a kinda major way, to compensate for the rules (as well as cleaning up some of the other storyline stuff, iirc)
and, as far as i'm aware at least, i don't think there was a bunch of 'can't use old saves' updates before this, either. so, little harsh to say the dev 'hasn't made commitment to keep saves functional between versions' if it happend like, one time, and had nothing to do with the save's actual 'functionality' between versions and like, a good chunk of the early game being severely altered, being the culprit, essentially.