For this update we have:
ːns_greenːA new weather system was added.
ːns_greenːThe system that saves the game was restructured to avoid from breaking compatibility in the future. Ironically, it will break the compatibility with your saved files and you will have to restart the game, sorry guys.
ːns_greenːFixes and improvements
Note: If you don't want to lose your current progress yet, you can change to the beta branch "v.2019.1.1.ea".