A quick update regardless of the past discussion about if the saves were going to be reset if HHG migrated to Renpy 8, with python 3.
I updated to renpy 8. I had to rewrite a lot of code but; the Previous v0.1.2 saves still work!
So, no need to create a new save if someone is playing the game or finished the game previous to the update.
No weird hidden buttons, no weird instructions in Patreon posts or whatever, just turn the game on and choose your save or start again, as it should be.
I dodged a headache bullet.