Android:
The new version did not update the older version, but rather simply installed a second copy of the game on our phone.
Additionally, the new version doesn't save and load from the same location as the old version.
The old version in question is 0.31.88b, and even has a nice "Uni is Loading…" splash screen instead of the same splash screen every other Ren'Py game uses, which the new version is also using. We like the 0.31.88b splash screen better.