1. Some material settings are changed (Graphic improved)
2. Refelction probes are added at MyeongDongStation(Graphic improved)
3. Inventory key introduction is added at AndongStation.
4. Version 1.1.0 & 1.1.1 & 1.1.1c & 1.1.2 & 1.1.3 & 1.1.3b will be removed from beta tab soon.
1.2.8b Patch note
Source: Steam Community (opens in a new tab)