Lmao you have the option to make a 1.4 so don't complain we console players get forced to play the new version if you play other games because it's autouodate and you can't load older games... That means every update destroys your while progress
According to the War of the walkers discord, you should be fine updating the mod to V1.3 and keep your safe. But better check that yourself and ask on the discord, i just flew over the text quickly.