Redot 26.3

Redot 26.3 Changes and Enhancements

GDScript Enhancements

• Simplify ScriptServer::get_global_class_list by @YYF233333 & Cherry picked by @Arctis-Fireblight
• Core: Fix ClassDB class list sorting regression- #115923 by @GusatuDamianAlexandru & Cherry picked by @Arctis-Fireblight
• Introduced Traits to GDScript by @SeremTitus & @Arctis-Fireblight
• Add nullable static types to GDScript by @mcdubhghlas
• Introduced structs to GDScript by @mcdubhghlas & @decryptedchaos
• Improve GDScript keyword errors and dependency error navigation by @Arctis-Fireblight

UI Changes

• "create new node" description panel is now resizable by @joey-wheeler99
• add margin to file thumbnails in file explorer window by @joey-wheeler99
• Move script name to top by KoBeWi & ported by @joey-wheeler99
• Make ProjectList visually consistent with the ProjectManager by @DaveTheEggman

Editor Enhancements

• Cherry pick: Path3d snap to collider by @GustJc Cherry picked by @Tekkitslime
• Add custom folder coloring by @JoltedJon
• Cherry pick [Add game speed controls to the embedded game window] by DexterFstone & cherrypicked by @JoltedJon
• Animation selection in sprite or sprite frames editor are now undo-able by @GeneralProtectionFault

2D Enhancements

• Parallax2D Expose manual scroll for manual control of infinite scrolling by @GeneralProtectionFault
• Add Mode7Sprite2D Node - Replicate Super Nintendo Mode 7 graphics by @GeneralProtectionFault

3D Enhancements

• Introduce 3D Terrain Editor - World Scape 3D by @OldDev78 - Port based on Terrain 3D by @TokisanGames

Performance Enhancements

• Improved clustered rendering efficiency by reducing unnecessary buffer updates by @mcdubhghlas
• Added Math::sin_cos() and strategically replaced trigonometric calls to increase performance by @mcdubhghlas
• Enhanced performance of Vector3::slerp() by @mcdubhghlas
• Increased struct performance by 19% and reduced memory footprint by 33% by @mcdubhghlas

Networking Enhancements

• Add optional FP16 quantization; reduce replication overhead by @mcdubhghlas

General Enhancements

• Enable C++20 standard by @OldDev78
• Add option to save default project path on project creation by @GeneralProtectionFault
• Refactored, cleaned up, and optimized theming system internals by @GeneralProtectionFault
• Misc enhancements to MCP server implementation by @MichaelFisher1997
• Add function OS::get_real_path() by @samuelvenable
• Engine now respects end user’s power settings by default by @addmix
• Move server files into their subfolders by @aaronfranke cherrypicked by @JoltedJon

Rendering Enhancements

• Expose runtime baking functionality in LightmapGI by @sourcelocation & @GeneralProtectionFault

Shaders

• Add configuration warning for overlapping shader instance uniforms by @DaveTheEggman

Physics

• Add ray and segment intersection methods to MeshInstance3D by @JamesK89
• Optimize Physics2D constraint scheduling + convex polygon normal transforms by @mcdubhghlas

Movie Maker Mode

• Improve Movie Maker: Movie Mode, EXR output, and transparency fixes by @mcdubhghlas

Bugs Squashed

• Fixed incorrect app_id in Wayland config by @JoltedJon
• Fixed edge case where invalid casts were allowed in GDScript, such as int → string by @mcdubhghlas
• Fixed subviewport renderer flicker by @GeneralProtectionFault
• Fixed import error in EmbeddedGodotGame.kt during Android editor build by @Daniyal09
• Replacement text in the find-and-replace tool now correctly interprets C-style escape sequences before applying replacements by @JoltedJon
• Render targets now initialize newly created color textures to transparent black, preventing undefined visual results on first use by @GeneralProtectionFault
• Fix sky shader SCREEN_UV builtin in Compatibility renderer by @DaveTheEggman
• Fix window wrapper disabling prematurely on close request by @DaveTheEggman
• Fix AO Light Affect in Compatibility renderer by @DaveTheEggman
• Fixed missing icon for monotonic cubic interpolation by @VictorSohier
• Fix SpotLight3D/OmniLight3D light_projector doesn't render when shadow_enabled is false by @DaveTheEggman
• Revert fposmod implementation code to match Godot more closely by @OldDev78
• Revert broken is_normalized checks by @OldDev78
• Fixed GH-1354 Modern Godot Animations not importing Properly by @JoltedJon & @mcdubhghlas
• Fix AtlasTexture not appearing until restart GH-1307 by @JoltedJon
• Fixed Typed Arrays cannot erase pairs with null/invalid keys by @JoltedJon
• Fix incorrectly mapped move & drag icons on Linux by @GeneralProtectionFault
• Fix trait type constraint validation in GDScript by @Arctis-Fireblight
• Fix MCP host and game process shutdown by @dominicbytes
• Rename the about dialog's tooltip text by @DaveTheEggman
• Fix decreasing ReflectionProbe's intensity property below 1.0 not reducing the strength of its ambient light condition by @DaveTheEggman
• Fix OpenXR failing to initialize rendering device by @JoltedJon
• Fix MCP scene_action connect persistence and callback stubs by @MichaelFisher1997
• Fix Cannot access inner struct of a trait or assign struct as a type alias by @Arctis-Fireblight
• Fix nullable struct fields defaulting to zero instead of null by @mcdubhghlas
• Fix spacing in REDOT_AUTHORS.md & clean up core_builders.py- #1385 by @GeneralProtectionFault
• Fix EditorSpinSlider::get_minimum_size() & EditorSpinSlider::_draw_spin_slider() by @DaveTheEggman
• Fix WorldScape3D - Undoing addition of node breaks viewport interaction by @OldDev78
• Fix support for trait super calls in GDScript by @Arctis-Fireblight
• Fixed error output in FP16 Unit Tests by @mcdubhghlas
• Fix FP16 networking unit test by @mcdubhghlas
• CanvasLayer dialogue UI renders black in Compatibility when a spatial shader uses hint_depth_texture by @Kaleb-Reid & cherry picked by @JoltedJon
• Make GDScript structs local-scoped by default and introduce struct_name keyword by @mcdubhghlas
• Fix Handling of @export_group in GDScript traits by @Arctis-Fireblight
• Fix Compiler bug: unresolved assign for trait-typed conversion assigns. by @mcdubhghlas
• Fixed several Mode 7 issues affecting saved state, materials, and target-following behavior. by @GeneralProtectionFault
• Fixed crash in headless mode by preventing objects from getting gueued for deletion twice by @OldDev78
• Fix memnew_placement with char * arguments by @Ivorforce and Cherry Picked by @morgothaufheroin88
• Enforce WorldScape3D tools ranges by @OldDev78
• Fixed WorldScape3DGradientOperationBuilder by @OldDev78
• Reduced WorldScape3D log spam by @OldDev78
• Fix WorldScape3D support for region size 4096x4096 by @OldDev78
• Fided Structs not showing in the inspector when exported by @mcdubhghlas
• Fix polygon trying to solve center with fewer than 3 vertices by @GeneralProtectionFault
• Fix count bug in _get_polygon_count by @GeneralProtectionFault
• Fixed structs not showing in the inspector when exported by @mcdubhghlas
• Fixed missing syntax highlights for structs by @mcdubhghlas
• Fixed code completion support for local structs in GDScript by @Arctis-Fireblight
• Fixed Inspector does not update when traits add/remove @export fields by @Arctis-Fireblight
• Fixed trait-typed exported arrays losing node references by @Arctis-Fireblight
• Fixed script and trait types in GDScript struct fields by @Arctis-Fireblight
• Fixed exported GDScript struct array editing in the Inspector by @Arctis-Fireblight
• Fix false nullable warnings after null checks by @Arctis-Fireblight
• Fixed "Terrain Assets" dock opens by default when creating a new project instead of "Output" by @OldDev78
• Fix trait symbol lookup by Arctis-Fireblight
• Fixed data loss on parse error by @mcdubhghlas
• Fixed inability to close paused games on Linux under Wayland by @Arctis-Fireblight
• Fix editor crash when completing nullable assignments by @Arctis-Fireblight
• Fix GDScript highlighting for static variables, traits, and structs by @Arctis-Fireblight
• Fix nullable narrowing for GDScript struct fields by @Arctis-Fireblight
• Improved WorldScape3D dock behavior when interacting with the editor window, including focus changes and minimized states by @OldDev78
• Fix set_prop not assigning resources and ignoring failed sets by @tyrannyme
• MCP: Fix trigger_action blocking the game instead of holding the action by @tyrannyme
• MCP: Fix inspect_live ignoring node_path by @tyrannyme
• MCP: Send initialized notification in verify_workflow.py by @tyrannyme

Documentation

• Fix WebXR documentation errors by @dominicbytes
• Fix dead "Compiling from source" URL in README by @BLOKBUSTR
• Update documentation feedback link to correct repository URL by @Arctis-Fireblight

Chores & Buildsystem

• Update default CI permissions to read only by @dominicbytes
• Preserve dotnet format return code in static checks by @dominicbytes
• Update workflows to use the latest actions by @DaveTheEggman

New Contributors

• @OldDev78 made their first contribution in #1285
• @Daniyal09 made their first contribution in #1312
• @addmix made their first contribution in #1313
• @joey-wheeler99 made their first contribution in #1331
• @DaveTheEggman made their first contribution in #1359
• @dominicbytes made their first contribution in #1358
• @JamesK89 made their first contribution in #1386
• @morgothaufheroin88 made their first contribution in #1417
• @BLOKBUSTR made their first contribution in #1493
• @tyrannyme made their first contribution in #1513

Full Changelog: redot-26.2-stable...redot-26.3-stable