Before I get into the main reason for the update, I would like to say that some mods will be getting added to the workshop as well.
In 1.43 SCS changed some def information relating to axles on trucks and trailers for compatibilty with future features.
Presently (up to 1.42) the following lines in the def files were as follows:
liftable and/orsteerable axle: X (rear most axle) liftable and/or steerable axle: X (middle axle) liftable and/or steerable axle: X (front axle)
This has now been switched around so that the front axle is now at the top of the list and rear most at the bottom. While the change is minor, it does mean all trucks trailer mods using liftable and/or steerable axles need updating.
Below is a list of all my mods affected and updated.