Massive UI revamp, tons of new features.
Performance and accuracy improvements.
Move entirely to scoped storage and target API 32.
Your saves ARE NOT LOST, but you MUST reimport them. Follow the on-screen instructions after updating. Here are the steps:
1. Swipe from the left to open the nav menu.
2. Select "Transfer Data".
3. Select "Import".
4. Navigate to the "duckstation" directory in internal storage. You may need to select "Show Internal Storage" in the menu.
5. Follow the prompts.