Kerbal Space Program

* New:

Editor:

- New Engineer's Report Toolbar App, provides warnings and advice during construction, notifying players of possible design issues with their ships.

- Added 'Cross-Section Profile' Filter to Parts List.

- Added Thumbnail images for Craft files in both Launch Dialog and Craft Browser screens.

- Added 'Merge' button to Load dialog, allowing ships to be loaded without replacing the current one

- Added confirmation dialogs when overwriting a save, launching or leaving editor without saving.

Aerodynamics:

- Complete overhaul of the flight model.

- Lift is now correctly calculated and applied for all lift-generating parts.

- Drag is now pre-calculated automatically based on part geometry, and applied based on part orientation in flight.

- Both lift and drag are dependant on density and the speed of sound; both properly calculated from temperature and pressure.

- Stack-mounted parts can occlude each other for drag calculations.

- Lift-Induced drag now properly simulated.

- Stalls are now properly simulated.

- A new body-lift system meaning parts can induce lift even if they are not designed to do so.

Heat Simulation:

- Completely revised part heating model, energy flux is considered, not merely temperature.

- All game temperatures changed from ‘Kervin’ to proper Kelvin.

- Radiative, conductive, and convective heating and cooling are simulated.

- Parts can have individual radiative, conductive, and convective properties.

- All parts now emit a blackbody radiation glow if they get hot enough.

- Conduction between attached parts is more accurately modelled.

- Parts can occlude other parts from being exposed to sunlight, celestial body albedo/radiation and supersonic flow.

- Reentry/hypersonic flight heating is now simulated.

- Added difficulty Setting to scale aerodynamic heating.

- Atmospheric temperature, and thus density, takes latitude and sun position into account.

- Celestial bodies accurately emit thermal radiation making nearby craft warmer.

- Service modules, fairings and cargo bays can be used to protect parts inside from heat.

- Heat shields provide (finite) ablation-based protection for parts behind them.

Parts:

- New procedural Fairings added, in 3 sizes

- New Heat Shields added, in 3 sizes

- Service Bay parts added in 1.25m and 2.5m sizes

- Several new Landing Gear parts added, in many sizes.

- Many New large airliner and shuttle style wing sections added.

- Large wing sections have internal fuel tanks.

- All old spaceplane parts overhauled with a more up-to-date style.

- Old Avionics Nose Cone overhauled and repurposed as a standalone, non-autonomous SAS module.

- New atmosphere scanner part added.

- New Inline Xenon Tank part added.

- New RT-5 'Flea' Solid Rocket Booster added.

- New Fuel Cell parts added (small and large), convert LiquidFuel and Oxidizer into Electricity when turned on.

- New models for Circular and Ram air intake parts.

- New models for Engine Nacelle parts.

- Several new nose cones and tail sections.

- New Airbrake part.

- New module for Airbrake parts, responds to Brakes input and can also be used as pitch/yaw actuator.

Internal Spaces:

- Added new IVA space for the Mk1 Inline cockpit

- Added new IVA space for the Science Lab

- Added new IVA space for Mk3 Shuttle Cockpit

- Added new IVA space for Mk3 Passenger Cabin

- Added new IVA space for Mk2 Passenger Cabin

Resources:

- Added 'Ore' resource, which can be mined across the Solar System

- New drill part added

- Ore container tanks added

- ISRU Ore processor unit added, converts Ore into Liquid Fuel, Oxidizer or MonoProp

- Three new Ore scanner parts added

- Added new MapView overlays displaying Ore density for all Celestial Bodies.

- Support for moddability of resources added (including atmospheric and oceanic)

- New Difficulty Setting to scale resource abundance (both stock and modded).

- Asteroids can also be mined for Ore.

- Engineer Kerbals are able to ‘overdrive’ drilling equipment for increased yield (and less safety).

Kerbals:

- Female Kerbals added, with new randomly-generated female names

- Valentina Kerman (Pilot) added to initial Crew Roster

- Kerbals are now able to clamber onto ledges within reach, because their jobs weren’t dangerous enough already.

- Kerbals can now climb out of ladders onto ledges.

- Tourist Kerbals added. They have zero skills, are unable to control vessels, and are required to keep their heads inside the vessel at all times.

- Kerbals now cost increasingly larger amounts of Funds to hire in Career Games.

R&D:

- R&D Tech Tree completely revised. Several new nodes added; many, many parts reassigned for a better progression.

- Kerbal Scientists are now able to restore inoperable experiment modules.

- The Science Lab has been retooled to run long-term research on experiment data, providing much higher amounts of science over time.

Graphics:

- New Smoke effects added to Launchpads

- New Surface Effects added whenever rocket engines fire near terrain

- New Water Effect added whenever rocket engine fire near water

- Revised all part shaders for improved rendering of lighting effects and shadows.

- Main Flight UI can now be made transparent.

Career:

- Added new Tourism contracts and tourist kerbals.

- Added ISRU resource extraction contracts.

- Added Grand Tour contracts.

- Replaced Rescue contracts with Recovery contracts, which can ask the player to recover a part, a kerbal, or both, and can spawn on the surface of planets, with “props” nearby.

- Added two 'immediate' Strategies to convert existing Reputation and Science into Funds.

- World First contract line now extends all the way out to Eeloo, and is dependent on player progression.

- Record contracts are now always active, and will complete in order even over the course of a single mission.

Tutorials:

- All tutorials revised and rewritten to explain most game features.

- Expanded Flight Basics Tutorial to cover the essentials of launching into orbit.

- Added new Return from Mun tutorial.

- Added new Science and R&D Tutorial.

- Added new Docking tutorial.

Flight:

- 'Warp To' action added to orbit context menu. Allows warping to a specific spot along your trajectory.

- 'Warp to next morning' button added to KSC toolbar.

- Asteroids can now be found orbiting near Dres.

- Engine thrust now varies according to Isp and throttle setting, instead of the other way around.

Controls:

- Completely revised Input Mapping system.

- Flight input bindings is now much more straightforward and more flexible as well.

- Duplicate control bindings for Docking/Staging modes now replaced by a much more robust system based on secondary key bindings.

- Joystick Axes are now consistently enumerated and persist across sessions.

- Up to 10 joysticks with 20 axes each now supported.

- Added secondary channels for Axis Bindings.

Cameras:

- New 'Chase' Camera mode added, old mode now called 'Locked'.

- Added Camera wobble/vibration effects during flight (engine vibration, explosions, ground roll, G-force, and many more)

- TrackIR support added to all game views (toggleable independently in game settings). (FreeTrack also reported to work)

- Added FOV control to main flight camera. (Hold ModKey and zoom)

* Bug Fixes and Tweaks:

Editor:

- Fixed several issues with editor attachments, attachment node orientation and symmetry.

- Shift+Clicking a 'frozen' part in the editor will detach it from its parent.

- Fixed several bugs with cloned parts and persistence.

- The editor no longer requires a full scene reload to load new craft files.

UI:

- The KnowledgeBase panel for Vessels now shows 'Max Accel' and 'Estimated burn time to 0m/s' (as shown on navball) fields.

- Several part context menu actions now properly apply to symmetry counterparts automatically.

- Added new custom cursors.

Simulation:

- Fixed 'infiniglide' bug.

- Switching SOIs no longer causes the next orbit to change at high time warp rates.

- Added a warp speed limit when approaching an SOI transition.

- Kerbal EVAs should no longer fly off when disembarking in space.

- SAS now disengages autopilot modes automatically (and falls back to stability assist) in cases where the target vectors would change very rapidly.

- Parachute deployment should no longer cause vessel disassembly at high physics warp rates.

- Deployed parachute sway now actually has an effect on the vessel.

Parts:

- LV-N “Nerv” Engine now runs solely on Liquid Fuel and has no gimbal.

- OSCAR-B tank can now be surface attached

- Air-breathing engines now drain fuel evenly from all tanks in a vessel.

- Fixed radial decouplers not applying ejection forces correctly.

- Parachutes no longer cause massive G spikes when opening.

- Control Surfaces can now be deployed as flaps, controllable via context menus and Action Groups.

- Stats of Antennas revised for a proper progression with the more advanced models.

- Added nicknames to all engine parts.

- Revised and balanced part costs.

- Balanced fuel amounts for Mk2 and Mk3 tanks.

- Balanced engines (Isp/thrust/mass) in line with the new aerodynamics.

- Added fuel gauge to LV-1 “Ant” engine.

- Materials Bay now faces away from the part it’s radially attached to.

- RoveMate rover body is now a probe body as well.

- The unshrouded solar panels are now non-retractable.

- Balanced probes electric charge usage, mass and crash tolerance.

- Lowered crash tolerance of the Structural Pylon to 70 from 999!

- All parts given ‘bulkhead profile’ tags in cfg files. Profile tags inferred automatically for parts missing this field.

- Cargo bays now properly detect enclosed parts, and can be grouped to make larger bays.

- Experiment Modules, Solar Panels, Antennas and such will not deploy while stowed inside a fairing or cargo bay.

- RCS thrusters will not function if stowed inside a closed cargo area (or fairing).

- Lifting surfaces will not generate lift if stowed inside a closed cargo area (or fairing).

Audio:

- Much improved flight ambience sounds for Kerbin and other bodies with atmospheres

- Added new sound effect when pulling high G forces.

- Eliminated audible gaps on several looping clips.

Effects:

- Improved sound/particle effects for all Air-Breathing engines

- Splashdown effects no longer spawn underwater.

General:

- All part textures converted to DDS format, load times are now 3x faster.

- Fixed a serious persistence bug which prevented Scenario/Training saves from updating scenario modules properly.

- Fixed persistence bugs which caused state data from Upgradeable Facilities to carry over to other saves.

- Fixed an issue which caused Kerbals to not be generated randomly enough, which led to slowdowns with larger Crew Rosters.

- Fixed issues with the terrain during scene switching making scene load times faster.

- Fixed terrain scatter generation which was causing memory leaks.

- ‘Elon Kerman’ added to name pool.

- Crew name generator can now output 10,000+ female names

- Fixed an issue with markers in the KSC scene potentially causing the game to lock up.

- Restructured GameData folder, integrated the NASA folder into the Squad one.

- Valentina Kerman added to Main Menu’s Space scene.

Gameplay:

- All contracts other than World Firsts or Records are halted until the player reaches space.

- Prevent “stacking” of various contract types.

- Resource parts added into satellite, station, and outpost contracts.

- Prose of contracts involving kerbals re-evaluated with gender appropriate text.

- All contracts in career given balanced income for all three currencies.

- Science and reputation no longer scale with the celestial body of a contract, and are handed out more conservatively in general.

- All strategies in career given equivalent exchange rates.

- Aggressive Negotiations strategy given a discount on building repair/upgrade.

- Recovery Transponder strategy now lowers maximum recovery rate, while raising minimum recovery rate.

- Facility upgrade costs re-evaluated, lowered by about a quarter overall.

- Kerbals now properly receive experience for suborbital flights.

- Part Test contracts now request much saner flight parameters.

- Survey contracts choose much saner locations to survey.

- Sensor Experiment Modules are now able to perform experiments in all situations.

Debugging/Modding:

- The R&D Tech tree is now defined in a cfg-file.

- The cfg file for the Tech Tree is defined separately for each save.

- GameVariables methods are now all virtual and can be overwritten by mods.

- Added a new set of debug tools to tweak Physics parameters.

- Added a new set of debug tools to tweak R&D tech tree nodes and part assignments.