The answer to your question is yes. Since Ren'Py likes being a bastard to save files that are one update behind (or any older versions, for that matter), you're gonna have to download and start from the beginning each time a new update comes out. I know it can be bothersome, but you're gonna have to power through it.
Correct actually.
To add that, I often update codes on prev days to see if I can improve it or change some parts that may affect future events. Because of this, Renpy gets confused when you load into a save. But that's also why we release games in larger intervals rather than several in a month so that you don't do this often.
