• Upgrade to math.gl beta.5 and reuse its Arrow and tasks modules; remove duplicated utilities and v5 forwarding entry points.
• Use versioned Arrow column transport with a schema-only IPC message; keep loader-specific hooks in the flat core/arrow-worker-transport entry point.
• Preserve canonical GeoArrow union IDs and mixed dimensions, and fix i3dm RTC-relative ENU orientation.
• Add dependency-free STL, NRRD, OpenEXR, IES, and color LUT loaders, and expose validated VTK readers.
• Add bounded USDC decoding, preserve USD dictionary metadata, validate USDZ roots, and expose embedded USDZ assets.
• Support legacy SPZ2 glTF metadata and add glTF emissive and scene geometry metadata schemas.
• Unload cached tiles on finalization and rename Tile2DHeader; remove crypto workers.
• Improve format documentation, navigation, mobile examples, and release finalization recovery.