- Minor bug fixes

- Minor bug fixes

- Minor bug fixes, support for macOS 10.15

- Compatibility for iOS13

- Prevent portrait rotation in Help menu
- Add option to skip 'Shoot the Nuc' or 'Draw Mechanism' scenes
- Fixes for window constraints

- New “ChemYourself" feature added!
- Display fixes for iPhone X
- Updated splash screen

- Fixed iPhone X 'notch' interfering with game play
- Adjusted sensitivity for drawing mechanisms
- CheckYourself points were not consistently applied
- Add 'Help' icon to topics screen
- Molecule artifact on iPad
- Reduce tapping difficulty; Topic 4 Level 3