Yes, standard progression saves from the 0.20 branch generally carry over. However, to prevent scripting glitches with updated questlines, starting a fresh game is highly recommended.
Summertime Saga 0.20.16 for Windows: Everything New in the Stable Legacy Build summertime saga 02016 for windows new
Select the option to jump directly into the 0.20.16 walkthrough. Yes, standard progression saves from the 0