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This is 2026.9 preview documentation. Coverage here is incremental: a page exists only where 2026.9 differs or is newly documented.
2026.9 developer notes for Speckle Viewer packages are not on this preview yet. Use the current Viewer developer documentation until those notes land.
Package-level Viewer documentation is planned for when compatibility mode turns off on 1 November 2026. For the web 3D viewer in the product UI, see 3D viewer in 2026.9.
Last modified on September 2, 2026