**0.38.13** published
**Patch content**
```UPDATE: Performance improvements
FIX: City with rank 5 cannot be saved
FIX: When SSAO was disabled, color were very dark
FIX: In some circumstances, the ambulance was stuck in the middle of the road
FIX: Silizens were sometime not happy although all the required buildings were next to them```
**Known issues**
```When shadows are on, big cities slow down the game```