Note

In C#, the enumPhysicsServer3D.G6DofJointAxisFlag breaks compatibility because of the way the bindings generatordetects the enum prefix. New members were added inGH-89851 to the enum that caused the enum members to be renamed.

Note

While the values of the enum fields inRenderingDevice.InitialAction andRenderingDevice.FinalAction changed,the only method that consumed them (draw_list_begin) added a compatibility method which supports the old values.So in practice it doesn't break compatibility.

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In C#, the enumRenderingDevice.DriverResource breaks compatibility because of the way the bindings generatordetects the enum prefix. New members were added inGH-83452 to the enum that caused the enum members to berenamed.

Note

The constrain avoidance feature inNavigationRegion2D was experimental and has been discontinued with noreplacement.

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Binary serialization was modified to fix some issues with the serialization of scripted Objects and typed Arrays (GH-78219).This breaks compat with script encoding/decoding.

Note

PackedByteArray is now able to use a more compact base64 encoding for storage. But the trade-off is that it breakscompatibility, meaning that older versions of Godot may not be able to open resources saved by 4.3 (GH-89186).

To maximize compatibility, this new storage format will only be enabled for resources and scenes that contain largePackedByteArrays for now. Support for this new format will also be added in patch updates for older versions of Godot.Once all supported Godot versions are able to read the new format, we will gradually retire the compatibility measuresand have all resources and scenes use the new storage format.

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In C#, theTransform3D.InterpolateWith implementation was fixed to use the right order of operations, applying the rotation before the scale (GH-89843).

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In C#, theAabb.GetSupport implementation was fixed to properly return the support vector (GH-88919).

Note

In C#, the Variant types'ToString implementation now defaults to using theInvariantCulture (GH-89547)which meansVector2(1.2,3.4) is formatted using. as the decimal separator independently of the languageof the operating system that the program is running on.

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AnimationMixer replaced its Capture mode with a new Capture feature that works much better than the old one,this replaces the existing cache (GH-86715).

Note

AnimationNode has a reworked process for retrieving the semantic time info. This ensures that time-relatedbehavior works as expected, but changes the blending behavior. Implementors of the_process virtual methodshould also note that this method is now deprecated and will be replaced by a new one in the future (GH-87171).

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The default font outline color was changed from white to black (GH-54641).

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Theauto_translate property is deprecated in favor of theauto_translate_mode property which is now inNode (GH-87530).The default value forauto_translate_mode isAUTO_TRANSLATE_INHERIT, which means nodes inherit theauto_translate_mode valuefrom their parent. This means, existing nodes with theauto_translate property set totrue may no longer be translated if theyare children of a node with theauto_translate property set tofalse.

Note

TheSceneMultiplayer caching protocol was changed to send the received ID instead of the Node path when sending a node removal confirmation packet (GH-90027).

This is a breaking change for the high-level multiplayer protocol making it incompatible with previous Godot versions.Upgrade both your server and client versions to Godot 4.3 to handle this change gracefully.

Note that high-level multiplayer facilities are only ever meant to be compatible with server and client using the same Godot version. It is recommended to implement some kind of version checking.

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Decals now convert the modulate color from an sRGB color to a linear color, like all other inputs, to ensure properblending (GH-89849). Existing projects that were using the decal's modulate property will notice a change intheir visuals.

Note

The reverse Z depth buffer technique is now implemented. This may break compatibility for some shaders.Read theIntroducing Reverse Z (AKA I'm sorry for breaking your shader)article for more information and guidance on how to fix common scenarios.

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TileMap layers were moved to individual nodes (GH-87379 andGH-89179).

Note

Android permissions are no longer requested automatically because it goes against the recommended best practices (GH-87080).Use therequest_permission method inOS and theon_request_permissions_result signal onMainLoop to requestpermissions and wait for the user response.