From the changelog included in the game.
0.1B
1. Added 7 achievements, for now in test mode, just to see how they will be received and what should be changed.
2. Introducing Sonya - in-game guide. For now just some barebones things, further additions in future versions.
3. Added unfinished changing room for Sonya, that allow for limited customisability of our cute assistant.
4. Removed BORD(URDD).
5. Various small fixes and edits.
6. Added emotions to the dialogues in the 3rd chapter.
As for you Eggy. Renpy game saves should automatically carry over as they're saved in your appdata folder.