Godot 4.1 is released, bringing improvements to stability, performance, and polish, with over 900 issues fixed. The update includes new features such as improved AI navigation avoidance, experimental multithreading, and frame delta smoothing. Godot 4.1 also introduces a pipeline cache for the Vulkan renderer and improved support for C# and GDExtension. The release is part of Godot's pledge to provide frequent incremental updates.