1.137 - 2026-01-05

Highlights include:

• Fixes for positioning in workflows that delete and recreate labels
• Fixes for texture coordinates in large billboard collections

See the changelog for the complete list of changes.

1.136 - 2025-12-01

Highlights include:

• Asynchronous scene picking
• Performance enhancements to terrain picking
• Improved billboard visual fidelity (especially for SVG billboards)

See the changelog for the complete list of changes.

1.135 - 2025-11-03

Highlights include:

• Removed support for the KHR_spz_gaussian_splats_compression extension in favor of the latest 3D Gaussian splatting extensions for glTF, KHR_gaussian_splatting and KHR_gaussian_splatting_compression_spz_2. Please re-tile existing Gaussian splatting 3D Tiles #12837
• Added experimental support for loading 3D Tiles as terrain, via Cesium3DTilesTerrainProvider. See the PR for limitations on the types of 3D Tiles that can be used. #12296
• Added support for EXT_mesh_primitive_edge_visibility glTF extension. #12765
• Improved performance of scene.drillPick (#12916), removing primitives (#3018) and terrain Quadtree handling of custom data (#12907)

See the changelog for the complete list of changes.

1.134 - 2025-10-01

Highlights include:

• Added Google2DImageryProvider to load imagery from Google Maps #12913
• Converted voxel raymarching to eye coordinates to fix precision issues in large datasets. #12061
• Fixed vertical misalignment of glyphs in labels with small fonts. #8474
• Fixed flickering artifact in Gaussian splat models caused by incorrect sorting results. #12662

See the changelog for the complete list of changes.

1.133 - 2025-09-02

Highlights include:

• Added support for the EXT_mesh_primitive_restart glTF extension. #12764
• Added spherical harmonics support for Gaussian splats, supported with the SPZ compression format. #12790
• Added Ellipsoid.MARS for use with Mars terrain and imagery. #12828
• Fixed issue where a Gaussian splat tileset would be rendered even if out of current camera view. #12840
• Removes the minimum tile threshold of four for WMTS. #4372
• Fixed a crash when loading PNTS (point cloud) data that contained a batch table without a binary part. #11166

See the changelog for the complete list of changes.

1.132 - 2025-08-01

Highlights include:

• Fixes incorrect polygon culling in 2D scene mode. https://github.com/CesiumGS/cesium/issues/1552
• Fixes material flashing when changing properties. https://github.com/CesiumGS/cesium/issues/1640, https://github.com/CesiumGS/cesium/issues/12716
• Fixed an issue where draped imagery on tilesets was not updated based on the visibility of the imagery layer. https://github.com/CesiumGS/cesium/issues/12742
• Fixes an exception when removing a Gaussian splat tileset from the scene primitives when it has more than one tile. https://github.com/CesiumGS/cesium/pull/12726
• Fixes rendering of Gaussian splats when they are scaled by the glTF transform, tileset transform, or model matrix. https://github.com/CesiumGS/cesium/issues/12721, https://github.com/CesiumGS/cesium/issues/12718
• Fixes Gaussian splats orientation with respect to glTF up-axis by updating spz-loader to version 0.3.0. https://github.com/CesiumGS/cesium/issues/12737, https://github.com/CesiumGS/cesium/issues/12749
• Fixes label background translucency issue. https://github.com/CesiumGS/cesium/issues/12673
• Add wrapR property to Sampler and Texture3D, to support the newly added third dimension wrap.https://github.com/CesiumGS/cesium/pull/12701
• Added the ability to load a specific changeset for iTwin Mesh Exports using ITwinData.createTilesetFromIModelId https://github.com/CesiumGS/cesium/issues/12778
• Updated all of the ITwinData.* functions to accept an options parameter instead of individual arguments to avoid confusion with multiple optional arguments. There is a fallback to the old signature that will be removed in 1.133 https://github.com/CesiumGS/cesium/issues/12778

See the changelog for the complete list of changes.

1.131 - 2025-07-01

Highlights include:

• Added HeightReference to Cesium3DTileset.ConstructorOptions to allow clamping point features in 3D Tile vector data to terrain or 3D Tiles #11710
• Added the ability to pass OffscreenCanvas & ImageBitmap directly to Material uniforms. #12558
• Fixed raymarching step size for cylindrical voxels. #12681
• Fixes handling of tileset modelMatrix changes for translations and rotations in GaussianSplatPrimitive. #12706
  • Experimental support for loading 3D Tiles with Gaussian splats encoded with SPZ compression was added in the previous 1.130.1 release #12582

See the changelog for the complete list of changes.

1.130.1 - 2025-06-24

Highlights include:

• Added experimental support for loading 3D Tiles with Gaussian splats encoded with SPZ compression using the draft glTF extension KHR_spz_gaussian_splats_compression. #12582
• Added support for integral texture formats: R32I, RG32I, RGB32I, RGBA32I, R32UI, RG32UI, RGB32UI, RGBA32UI #12582

See the changelog for the complete list of changes.

1.130 - 2025-06-02

Highlights include:

• Added basic support for draping imagery on 3D Tiles. #12567
• Added support for 3D Textures, with a Volume Cloud sandcastle example. #12661
• Updated the FragmentInput struct for voxel shaders to be more consistent with other CustomShaders. #12636
• Fixed voxel rendering with orthographic cameras. #12629

See the changelog for the complete list of changes.

1.129 - 2025-05-01

Highlights include:

• VoxelProvider.minimumBounds and .maximumBounds are now specified as physical values, rather than shape space values. #12592
• Added Material with Custom GLSL Sandbox Demo. #12549
• QuadtreePrimitive.updateHeights now converts position to Cartographic before invoking the callback, ensuring compatibility with change introduced by commit 53889cb and preventing unnecessary computation. #12555
• Fixed Polyline*MaterialProperty width artifacts (reverted #12434). #12506

See the changelog for the complete list of changes.