Here's the patch notes for the 1.2.1 update, mostly bug fixes and a few minor tweaks.
- Fixed bug where Miyazawa could get stuck during chapter 5
- Fixed bug where under specific circumstances Ngugi's last conversation wouldn't start
- Fixed some missing collisions during Miyazawa chapter 5
- Fixed missing animation during Miyazawa chapter 5 if triggered by time
- Fixed bug where Eldridge chapter 5 wouldn't be available if any other character was in chapter 6
- Minor story adjustments to secret storyline chapter 2
- Various improvements to fullscreen settings
- It should now be harder for the player to get stuck in geometry
- Added option to invert Mouse Y during the main game
- Updated ending credits