1.19.0

Required and must be downloaded separately :

• HarmonyKSP : Download - Homepage - Available on CKAN
• ModuleManager : Download - Forum post - Available on CKAN

Installation

• Download the file named KSPCommunityFixes_x.x.x.zip
• Open the downloaded *.zip archive
• Open the GameData folder of your KSP installation
• Delete any existing KSPCommunityFixes folder in your GameData folder
• Copy the KSPCommunityFixes folder found in the archive into your GameData folder

New since 1.18.3

• New performance patch : CommNetThrottling [KSP 1.12.0 - 1.12.3]
  Disabled by default, you can enable it with a MM patch. Prevent full CommNet network updates from happening every frame, but instead to happen at a regular real-world time interval of 5 seconds while in flight. Enabling this can provide a decent performance uplift in games having an large amount of celestial bodies and/or vessels, but has a detrimental impact on the precision of the simulation and can potentially cause issues with mods relying on the stock behavior. (contributed by @JonnyOThan)
• New performance patch : DisableMapUpdateInFlight [KSP 1.8.0 - 1.12.3]
  Disable the update of orbit lines and markers in flight when the map view isn't shown. Provides decent performance gains in games having a large amount of celestial bodies and/or vessels. (contributed by @JonnyOThan)
• New performance patch : ProgressTrackingSpeedBoost [KSP 1.12.0 - 1.12.3]
  Remove unused ProgressTracking update handlers. Provides a very noticeable performance uplift in career games having a large amount of celestial bodies and/or vessels. (contributed by @JonnyOThan)
• New QoL patch : ToolbarShowHide [KSP 1.8.0 - 1.12.3]
  Add a button for hiding/showing the stock toolbar. Also allow accessing the toolbar while in the space center facilities windows (mission control, admin building, R&D...). (contributed by @NathanKell)
• New QoL patch : ResourceLockActions [KSP 1.8.0 - 1.12.3]
  Add part actions for locking/unlocking resources flow state.
• New KSP bugfix : EnginePlateAirstreamShieldedTopPart [KSP 1.11.0 - 1.12.3]
  Fix engine plates causing the part attached above them to be incorrectly shielded from airstream. (Thanks to @yalov (flart) for reporting and to @Aelfhe1m for coming up with a clever solution).
• New KSP bugfix : AsteroidInfiniteMining [KSP 1.10.0 - 1.12.3]
  Fix asteroid/comet mass being restored to 100% when reloading after having mined it down to 0%. (Thanks to @Rodg88 for reporting).