yeah, best thing to do while the game is in active dev is finish everything in the version you have installed, then uninstall the game completely, then download the latest edition of the installer and run it.
Some legacy saves are not forward compatible sadly, however each new version comes along with a "skip to new content" feature that lets you continue the story from the end of the last major update (so right now that would be starting from the beginning of the Tatsumaki route, with all content up to now including the one dedicated story scene with her, and the echo split ability unlocked as part of the story, which can be used in free use with Power, Asuka, and Rebecca.