The Godot 3.6 release introduces major features like 2D physics interpolation, 2D hierarchical culling, 3D mesh merging, and discrete LOD. It focuses on performance improvements and backward compatibility, making it a recommended upgrade for users of Godot 3.5.x https://alternativeto.net/news/2024/9/godot-engine-3-6-brings-major-updates-with-2d-physics-interpolation-mesh-merging-and-more/