* Fixed vehicle path-finding that was sometimes not being able to find the shortest path and was returning longer ones.
- On average, the length of paths taken by trucks is 4% shorter and takes 15% less steps to find.

v0.6.4
* Added map-data-cache feature that speeds up game loads by around 2x (more speedup for weaker CPUs).
- New Haven map load went from 12 to 7 sec, Armageddon from 30 to 15 sec (on i9-13900 CPU).
- This was achieved by loading cached map data instead of generating terrain from scratch.
- Map cache is created and saved on the first game load so speedup will be only noticeable on subsequent loads.
- All games that share the same map version will share its cache.
- At most 5 map caches are stored at one time.
- This feature can be disabled with --disable-map-cache launch option.
- This change also reduces the probability of game crashes due to high CPU load on systems that are sensitive to this.
* Improved saving algorithm of terrain tile data, reducing raw save file size by ~2x. The effect on final compressed file size is smaller, around 15% savings.
- This change resulted in significant memory and time savings during saves and made map cache smaller and faster to load.
- Map data cache of the Armageddon map went from 160 MB to 66 MB (before compression).
- This change also reduces the chance of encountering out-of-memory errors during game saving when the system is low on memory.
* Settlements can now have custom surfaces which cover the original paths.
* Game speed is now saved.
* Spam-clicking the start game button no longer makes the in-game escape menu unclickable.
* Fog now renders properly for liquid evaporators and vehicle particles.
* FPS limit was removed from the loading screen to eliminate idle time where the game is waiting for the next step but the renderer is also waiting for the next frame due to the FPS cap.
* Improved visuals of dust particles on terrain and behind vehicles.
* Vehicle dust and exhaust particles now do not spawn when the camera is too far from them.
* Vehicles now spray water instead of dust during rain.
* Dust behind vehicles is now emitted even on concrete surfaces in small amounts.
* Fixed excessive dust emitted when the mega excavator was turning in-place.

Map editor
* Optimized the "Writing generated data" step which used to take up to 60 seconds on large maps, now it’s nearly instant (speedup of over 1000x).
* Fixed missing reference list of noise functions.
* Fixed error window that did not show errors when first displayed.