* Added mass-upgrade tool for vehicles.
* The train blocks visualizer now shows unbuilt tracks in red.
* Added a button in the train depot to show the blocks visualizer.
* Train fuel usage is now reported in fuel consumption statistics.
* Fixed global quantity not being correct due to train fuel stations not reporting used fuel properly.
* Fixed incorrect contract quantities estimates in the cargo depot module for large ships.
* Fixed Recycling edict V research not being available in pre-Update 3 saves.
* Fixed Server to Iron contract being too expensive.
* Fixed train re-pathing to re-validate all goal stations and their constraints.
* Trains will now go to paused stations if they started going there. Upon arrival, they will move to the next schedule item.
* Fixed issue where trains would not clear their occupied blocks correctly.
* Fixed that trains would burn fuel when waiting for free track on slopes. Now they apply max brakes.
* Fixed train track building center graphics color for some track pieces.