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Official release
Released 6/24/2021
Steam Steam Community
1.11.2 1.12.1

Version 1.12, named On Final Approach, is a major update that released on June 24, 2021.[1] An update for the Making History and Breaking Ground expansions were released alongside this major release. 1.12 was the last major release of Kerbal Space Program before the release of Kerbal Space Program 2.



  • Upgrade project to Unity 2019.4.18f1 LTS.
  • All module filter buttons in advanced filter mode in the VAB/SPH now have icons.
  • Adjustment to Kerbal hiring formula to make it not prohibitive, while still making it cheaper if the player has lost most/all of their kerbals.
  • Wheel and landing leg suspension now spreads weight across all grounded wheels.
  • Wheels have new improved friction model with more realistic physics.
  • Wheel steering response is now modified to give lower response at higher speeds (less oversteer).
  • Add new stock Slim suit.
  • Color picker PAW field now shows current color to left of name.
  • Adjustments to PAW groups to let controls in groups fill the PAW better.
  • ChooseOption PAW field now marquees text for long value choices.
  • Revamp of Eeloo's terrain textures
  • Revamp of Pol's terrain textures.
  • Implement new structural variants to Flag parts and ensure non-structural ones have no colliders.
  • Add limited rotation to Docking Port parts so they can now slightly rotate to help align both sides of the vessel.
  • Add Disconnect action for compound parts like fuel lines and struts, so you can disconnect these via the part menu, actions and controllers.
  • Add folder structure display and navigation for craft storage and the craft-load dialog.
  • Add middle mouse click handling to set lat, lon, alt when using the set position cheat from flight and map mode.
  • Add Maneuver Tool app to create inter-body transfer maneuver nodes.
  • Add file folder browser to craft load and save dialog.
  • Add ability to search games in load screen.
  • Add ability to search craft in vessel load dialog.
  • Add 10th Anniversary Patch to classic astronaut suits.
  • Add an alarm clock app to help players not miss important events.
  • Implement cheats - Ignore Kerbal EVA Construction Mass Limit, Ignore Kerbal Inventory Volume/Mass Limit and Fix repairable parts.
  • Change error message color and added Override safety check to the set Orbit cheat.
  • Command Pods are now allowed to be edited in EVA Construction Mode.


  • Move Action Group App heading text to correct localization files.
  • Italian only. Fixing incorrect tense used for verbs in three Mission Control strings.
  • KSPedia EVA Activities fix, in all 9 languages.
  • Fix KSPedia Parachute slide for all 9 languages.
  • Fix outdated translation on Kerbal parachute KSPedia page of one string in Chinese only.
  • Fix on grammatical error on Dzhanibekov effect EVA science experiment, for English only.
  • Fix translation in one string (#autoLOC_8003405) , only for Russian.
  • Fix for missing comma in SEQ-24 Cargo Storage Unit description, English only.
  • Fix for misspelled 'efficiency' in Construction training, English only.
  • Fix translation in game for one string to match cfg file (#autoLOC_309388) , only for French.
  • Fix translation in one string for Bepi Colombo, only for German.
  • Fix translation for several uses for 'crew' , only for Chinese.
  • Fix 'Ice Cream' is two words, English only.
  • Fix for apostrophe missing in 'comets' for one line in Rosetta mission. English only.
  • Fix for several part names showing untranslated in description, Japanese only.
  • Fix for using a capital C on the noun Comet for Rosetta mission summary, English only.
  • Fix for UI to show whole translation for KAL-1000 Controller details, Russian only.
  • Fix for spelling mistake in the part description window for the EVA Repair Kit, English only.
  • Fix for punctuation in Data from Science slide, French only.
  • Fix for spacing in Tools VAB/SPH KSPedia slide, Portuguese only.
  • Fix wheel stress PAW item text in Japanese.
  • Fix for typo issue in 'Dres' KSPedia slide, Portuguese only.
  • Updated text for OX-Stat-PD Photovoltaic Panel, 8 languages.


  • New solar panels! OX-10L 1x5, SP-10L 1x5, OX-10C and SP-10C Photovoltaic Panels.
  • Fix LV-N Nerv, Stayputnik, RA-15 Relay Antenna, LV-T45 Swivel, LV-T30 Reliant, Z-200 Rechargeable Battery, Girder Adapter and Z-4K Rechargeable Battery overlapping z-fighting issues.
  • Fix MK1-3's Kerbal hatch exit point.
  • Allow surface attachment to the PB-X50R Xenon Container, Stratus-V Cylindrified Monopropellant Tank and Stratus-V Roundified Monopropellant Tank.
  • Revamp all docking port parts.
  • Add a new set of parts. Fireworks dispensers! Added the parts Starshot-8 and Starshot-32.


  • Fixed audio issue caused by too many sounds triggering at the same time.
  • Fix Part Loader handling of invalid animations in parts on load.
  • Fix the map icon for Deployable Ground Parts like Work Lamps to not show the unknown question mark.
  • Fix parts being tilted when taken from inventory in Construction mode, they now match the rotation in the editor.
  • Fix kerbals being able to walk and jump their way to orbit.
  • Fix null references occuring on part icons after the mission flag is changed after moving a cargo flag from cargo to a vessel.
  • Fix issue flag parts in cargo were changing their thumbnail when changing the mission flag while in the VAB/SPH and also when held over PAWs or EVA Construction Panel.
  • A new screen message will appear when a Kerbal attempts to pick up a deployed cargo part when it's carrying capacity limit would be exceeded. The part will not be picked up until the Kerbal has freed enough capacity in its inventory slots.
  • Fix potential game crash when attempting to attach a part created from an undo (crtl+z)in editor.
  • Decreased a height error check from 0.2m to 0.1m, in order to support smaller parts, and preventing them to sink into the ground.
  • Fix edge case where robotic pistons shoot off at high speeds when dropped in EVA Construction Mode.
  • Fix Mobile Launch sites where all the legs will now try to extend if one does not find a ground collision.
  • Fix Mobile Launch Sites could end up with a null reference for positionMobileLaunchsite.
  • Deployed science SFX is no longer interrupted while placing more than one instrument.
  • Fix the consistency of Extendable parts. When they are moved they should retain their state, when stored they are retracted into storage and need to be extended once attached from storage.
  • Fix key not found exception after an EVA Kerbal dies followed by staging a decoupler in flight.
  • Fix ability to review and transmit science experiments whilst resetting the experiment.
  • Fix NRE on closing Construction Mode while holding robotic parts after detaching it from vessel.
  • Fix flag parts not moving with the rest of the craft when manipulating the root part in editor.
  • Fix flickering Orbit lines in Mapview/Tracking station (really fixed this time).
  • Fix for UI to allow proper space for the word "Small" to display in a single row in the PAW.
  • Fix for UI to avoid misaligned column text in "Active Strategies" column, in the Administration Building.
  • Fix wheel stress tolerance not taking gravity into account.
  • Fix wheels not taking steering curve into consideration.
  • Fix landing legs violently decompressing when fully compressed.
  • Fix landing legs shaking on low gravity.
  • Fix light weight rovers using S2 wheels sliding everywhere.
  • Fix landing legs shaking when attached to parts placed horizontally.
  • Fix vessels moving across the surface with landing legs placed at >= 45 degrees.
  • Fix toggle wheel motor action group.
  • Fix max speed on M1.
  • Fix some contract craft not loading in career games.
  • Fix quicksave text input being too short and characters being cut off.
  • Fix deploying ground parts interrupting SFX on other parts.
  • Fix NRE occurring during repairing a part.
  • Fix Rover Construction, Satellite Upgrade and Vessel repair contracts losing track of the contract vessel.
  • Fix any vessel arriving at a rover repair contract from triggering the waypoint on the contract.
  • Fix Satellite upgrade contract asking for parts that are not usable in EVA Construction mode.
  • Fix Ap and Pe markers appearing in future patches in space not aligned to current patch rendering when in career games that have yet to have patched conics available.
  • Fix EVA kerbals on a ladder in Construction Mode holding a part from floating off the ladder.
  • Fix the banana pieces velocity when performing the EVA science experiment whilst wearing the default suit.
  • Fix physicsless root part on decoupled vessel creating havoc.
  • Fix a Key Not Found Exception error message is fired when a Grip Strip is removed from any vessel through EVA Construction Mode.
  • Fix held part keeps its position in the scene on closing Construction Mode instead of reaching the ground.
  • Fix Mk1-3 Pod's rcs' SFX volume.
  • Fix toggle of suspension auto spring and damper not resetting spring and damper when toggled from override to auto.
  • Fix the Protective Rocket Nose Cone Mk7?s collider.
  • Fix prebuilt craft qualification for contracts based on tech nodes as they are purchased.
  • Fix Non-retractable deployable parts having a Retract option when they cannot be retracted.
  • Inventory part tooltip panel no longer closes as soon as the mouse exits the inventory slot. It is therefore now possible to read all the information when the panel has many widgets.
  • Extended part information panel and inventory tooltip are now more clear about mass information.
  • Fix audio issue where sounds makes a pop sound when engines shut down.
  • Fix NREs when expanding a stage from a vessel marked as debris.
  • Fix audio issue where sounds differed between map view and flight view.
  • Fix the MenuNavigation on the CraftBroswer dialog so that when browsing with the up and down arrows, the scrollback focuses on the highlighted element.


  • Changes to Wheel and Landing Legs systems by default are not applied to old parts. ModuleWheelBase.useNewFrictionModel, ModuleWheelSteering.useNewModel, ModuleWheelSuspension.useDistributedMass must be set to true in the Part Modules cfg for each part that wants to use the new functionality.
  • Failed reflection calls to incompatible or otherwise invalid mods are now handled, so they don't stop the game from loading.
  • Custom suits now show the corresponding icon in all relevant screens.
  • Added an additional useCustomThreshold field to ModuleOrbitalSurveyor. Setting it to true will allow the module to recalculate the minimum and maximum altitudes beyond the stock values.
  • When multiple versions of the same assembly are present, KSP now makes sure only the most recent one is loaded.
  • Tuned the logic to calculate space object resource percentages based on the lowRange and highRange values, preventing space objects from always having > 80% resources regadless of the range values.
  • Add a GameEvent for revert to launch that returns the current FlightState.
  • Add ability for modders to be able to turn off the color changer UI.
  • Add ability to support multiple lights from the single ModuleLight instance.
  • Allow ModuleLight's toggle action to simultaneously toggle other animations.


  1. https://store.steampowered.com/news/app/220200/view/3005571940021534579