Well, there's two versions of Summertime Saga now: the game that you probably played was 0.20.16 from 10-31-2022. The new version was made 05-31-2024 and you can read the details on https://www.patreon.com/posts/version-21-0-0-105305169 or visiting https://summertimesaga.com/news and scroll down to Version 21.0.0 Release! (Tech-Update wip.4468) but clicking the text will take you to the Patreon link I put above. The most recent update to this new version is Update wip.5258 (hotfix). Going to https://summertimesaga.com/download has both the 0.20.16 version and the 21.0.0-wip.5258 version. No idea why it isn't 0.21.0.0-wip.5258