Unity 6.4 is a supported release (similar to LTS but updated more frequently) introducing improvements across three areas. Editor workflow updates include a redesigned grid and snap toolbar, improved build profiles UI with hidden classic platforms, terrain layer drag-and-drop support, new animation state machine entry transition evaluation, and the Unity Graph Toolkit for node-based tools. Graphics and rendering updates feature a redesigned rendering statistics window with draw breakdowns, an updated render pipeline converter UI, mesh LOD transition controls, a new terrain properties node in Shader Graph, and HDRP volumetric fog density cutoff. Optimization highlights include Project Auditor now bundled by default, adaptive performance improvements with console platform support, optional physics module removal to reduce build size, ECS packages (Entities, Collections, Mathematics, Entities Graphics) shipping with the editor, improved PSO tracing via a new GraphicStateCollection API, and Microsoft DirectStorage support for faster asset loading.
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