Yeah it's been a pain I know! Currently however I am not planning to have any more updates until right before the full release later this year. The bad news is save data between 1.0 and the 2.0 launch will absolutely not work. But the good news is that save data from the 2.0 demo and full release (plus any future updates at that time of course.) will be compatible. And of course the game will be quite a bit different to justify one more restart I think!
This page will continue to get monthly devlogs showcasing what's being worked on as well so you can still get an idea of what stuff occurs in the later chapters. Thanks for you interest and kind words!