* Fix crash which could occur when the ignore signals button is used to send a train the wrong way onto a signalled tunnel/bridge.
* Fix crash or misrouting which could occur when a train which ignores signals is used to partially remove the reservation of another train,
and the track layout is modified to remove the endpoint of the train's original reservation, or an unreserved diverging junction is unexpectedly encountered.
* Adjust realistic braking physics to fix discrepancies between realistic braking and realistic acceleration.
* Refresh train lookahead when starting train from stationary.
* Reduce sensitivity of train brakes overheated breakdown.
* Fix train brakes overheated breakdown not triggering under some conditions where it should.
* Tooltips:
* Fix tooltip flickering when dragging outside window.
* Fix viewport drag tooltips not being removed when dragging over other windows.
* Fix old polyrail tooltips being left on screen.
* Fix crash when a path to directory is passed as a config file name.
* Fix articulated train units having all of their total weight allocated to the first articulated part, causing issues with slopes for realistic acceleration and braking.
* Fix building objects or trees on coast/shore tiles and then removing them preventing the tile being flooded afterwards in some circumstances.
* Fix network clients which fail to connect being left in the clients list of other connected clients in some circumstances.
* Fix desync which could occur when using drive-through train depots in some circumstances.