Note: I have not checked the GDExtension and C# binding generators, tests/core/object/test_class_db.h. Also let me know if this change is breaking (I don't know if enum members falling into outer scope is supported in C# and GDExtension).

Here is the diff of extension_api.json from the previous commit. The AXIS_* and PLANE_* constants are removed as expected. I added some context, so the enums are visible -- which already contain the same identifiers.

Also let me know if this change is breaking (I don't know if enum members falling into outer scope is supported in C# and GDExtension).

A GDExtension binding may technically need an update in the code generator (or an API dependent on it), if constants are missing -- but since the values are still there as enum variants, migration should be straightforward. And since both are passed as numbers to the actual GDExtension C API, binary compatibility shouldn't be broken. Which is the important part, because it means existing plugins will keep working with Godot 4.4 without recompilation.

So from my side this is a welcome improvement! 👍

This shouldn't cause any issues with godot-cpp, since we have hand-written implementations of all the VectorN types and Plane.

Like @Bromeon says above, this could theoretically cause issues with some GDExtension bindings' code generators, but we've made minor extension_api.json changes that could affect code generation in minor releases before (we don't make them in patch releases, though), and I feel like this acceptable and in line with what we've done in the past.

Thanks!