This is the legacy build pre 1.5 updated! Use it for when your save otherwise breaks!
With the update to 1.5 (mod version 3.5), I also cleaned up the mod, removing bloat, old textures, as well as animals I should never have added to Core. It also splits retextures into a new sub mod. This can easily break 1.4 saves. For that reason, this legacy built exists.
With mod version 3.5 and after, Rimworld 1.2 and 1.3 are no longer supported.