Rimworld V1.4.3517 -

: 1.4.3517 addressed several underlying issues in the C# and XML codebases to help modders keep their content compatible with the evolving 1.4 framework. Notable Features in the 1.4 Era

: Significant upgrades to the search bar functionality in various menus, making it easier to find specific items in large stockpiles. RimWorld v1.4.3517

: The introduction of toxic waste packs and the environmental hazards they create. RimWorld v1.4.3517

: Refinements were made to the then-new security buildings, such as the Foam Turret (which suppresses fires) and the Rocketswarm Launcher (effective against large groups of unarmored enemies). RimWorld v1.4.3517

: Core Biotech features that allowed players to engineer custom xenohumans and manage colony families.