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Previous Version: Version/1.4.3641
Released on: 16 February 2023
Next Version: Version/1.4.3704
Released on: 20 April 2023

Released on: 29 March 2023

Spring is here, so we’re springing into action with a (small) update of fixes for RimWorld and its expansions.

The changelog is below, but here are the highlights! We fixed an issue where captured prisoners were escaping from your caravans and another issue where siblings became unrelated to each other if their parents were removed from the game.

If you like following these updates, you’re welcome to join us and even test new builds over at the Official RimWorld Development Discord!

Enjoy! - Tia


  • The bestowing ceremony lord will now be removed once the last pawn has left the map.
  • Removed 2 second damage stagger from tunneler mechs. Staggering is based on weapon stopping power as with all other pawns.
  • Update previous passion values if a child growth moment picks a skill with passion dropped by gene.
  • Pawns that generate with passion-dropping genes will no longer generate with passion for those skills.
  • Updated player name-in-game content.


  • Fix: Incapable of violence pawns can activate rocketswarm launchers.
  • Fix: Error when shield belt on ground is hit by EMP explosion.
  • Fix: Captured prisoners escaping from reformed caravans.
  • Fix: Slaves freed on exiting map.
  • Fix: Ranged weapons that don't do bullet damage don't display "Headshot" text on head hit.
  • Fix: Dead calm pawns go berserk when arresting fails.
  • Fix: Embryo skin color not preserved in growth vat between save/load.
  • Fix: Pawns incapable of manipulation are able to strip targets via float menu option.
  • Fix: Caravans holding relics cause "relic lost" thought on map exit.
  • Fix: Rare exception occurring when attempting to start a queued job with a null def.
  • Fix: Rare error when attempting to dye buildings.
  • Fix: Items in fogged areas counting as complete for bills.
  • Fix: Invalid destination for shuttle causes errors.
  • Fix: Pollution overlay grid not updating after cell-filling buildings are destroyed.
  • Fix: Pawn sibling relationships disappearing when parents are removed.
  • Fix: Long range mineral scanner tune command has no description.
  • Fix: Hard-coded English string "No description." for commands without a description.
  • Potential fix for TKey system suggesting long-form translation aliases.
  • Fix: Missing period in legionary description.
  • Fix typo: "Do really want to hack..."
  • Fix: Awkward wording in dirtmole description.