Godot 4.0 Sets Sail With Vulkan and a Full Engine Rewrite

A three-year rebuild

Godot 4.0 was released on March 1, 2023. The team described it as the culmination of more than three years of breaking and rebuilding from the ground up, a complete core overhaul and full engine rewrite that went through 17 alphas, 17 betas and 6 release candidates. Rather than a regular update, they framed it as a great rebuild that lays a new foundation for the Godot 4 series, with Godot 3.6 continuing as a long-term support release for existing Godot 3 projects.

Vulkan and new renderers

The headline was a rendering overhaul built on two new Vulkan backends, Clustered and Mobile, plus an OpenGL-based compatibility renderer for older and lower-end devices; a Direct3D 12 renderer for Windows and Xbox was also in progress. Godot 4.0 introduced SDFGI (Signed Distance Field Global Illumination) for real-time lighting in large open worlds, replaced GIProbe with the VoxelGI node, and added AMD FidelityFX Super Resolution 1.0, occlusion culling and automatic mesh LOD.

Scripting: GDScript, C# and GDExtension

GDScript gained a more robust static typing system with typed arrays, first-class functions, lambdas and signals, await and super keywords, and a much faster runtime after a complete backend rewrite. C# was ported to .NET 6, defaulting to C# 10 with all features available, and introduced a Variant type across the API. A new experimental technology, GDExtension, lets developers use low-level languages like C++ as a scripting language without recompiling the engine.

2D, physics and more

Godot 4.0 shipped a re-imagined tilemap editor with layers, terrain auto-tiling and scene placement, added Canvas Groups and a Clip Children masking property in 2D, and introduced multiple window support in the UI. Other additions spanned volumetric fog, sky shaders, decals, compute shaders, a server-based navigation system, and a new Movie Maker mode. The team cautioned that this first stable release was only the beginning, with performance and polish to follow in later 4.x versions.

Related on Skillo

See also: Godot 4.1 and its stability focus.

Sources

• Godot 4.0 sets sail (godotengine.org)

Published date reflects the original event date (2023-03-01). This article is original Skillo editorial written from the sources above; facts were verified in September 2026.