Cesium Release Roundup

New Cesium releases are available:

  • CesiumJS 1.124 adds an integration with the iTwin Platform to load iModels as 3D Tiles.
  • Cesium for Unreal 2.11.0 adds support for Unreal Engine 5.5.
  • Cesium for Unity 1.14.0 adds a “From Ellipsoid” option to Cesium3DTileset to generate a tileset by tessellating the surface of the ellipsoid, producing a simple globe tileset without terrain features.
  • Cesium ion updates include Reality Tiler improvements, plus the Design Tiler and Cesium ion for Autodesk Revit Add-In coming soon.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in November:

Happy New Year! New Cesium releases are available:

  • CesiumJS 1.125 expands the integration with the iTwin Platform to load GeoJSON and KML data from the Reality Management API.
  • Cesium for Unreal 2.12.0 removes support for Unreal Engine 5.2. Unreal Engine 5.3 or later is now required.
  • Cesium for Unity 1.14.1 fixes a bug that could cause a crash on AppDomain reloads.
  • Cesium ion additions include the release of the Design Tiler and Cesium ion for Autodesk Revit Add-In, annotations for Cesium Stories, and updates to the Reality Tiler and 3D Tiling Pipeline.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in December:

New Cesium releases are available:

  • CesiumJS 1.126 adds ITwinData.loadGeospatialFeatures(iTwinId, collectionId) function to load data from the Geospatial Features API.
  • Cesium for Unreal 2.13.1 adds CesiumUrlTemplateRasterOverlay, allowing a raster overlay to be added using tiles requested based on a specified URL template.
  • Cesium for Unity 1.15.1 handles exceptions in either C# or C++ code more reliably.
  • Cesium ion updates include Cesium OSM Buildings and the Google geocoder.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in January:

New Cesium releases are available:

  • CesiumJS 1.127 updates Cesium3DTilesVoxelProvider to load glTF tiles using the new EXT_primitive_voxels extension to more closely align with the rest of the 3D Tiles ecosystem.
  • Cesium for Unreal 2.14.0 adds support for drawing 3D Tilesets to Runtime Virtual Textures.
  • In Cesium for Unity 1.15.4, “External Tilesets” are now unloaded when they are no longer used.
  • Cesium ion updates include importing from and exporting to Azure.

More highlights and downloads are on our blog:

In case you missed it, we published this tech post in February: Leveling Up Lighting in CesiumJS: IBL, Dynamic Environment Maps, and Ambient Occlusion.

New Cesium releases are available:

  • CesiumJS 1.128 adds support for loading iTwin data using share keys as an alternative to user-based OAuth. When using a share key, set ITwinPlatform.defaultShareKey.
  • In Cesium for Unreal 2.15.0, actors spawned through the Cesium editor panel, such as tilesets and cartographic polygons, will now be parented to the first selected georeference—if any—instead of always being parented to the first georeference in the scene.
  • Cesium for Unity 1.15.5 fixes a bug that could cause a crash when reloading a scene or tileset repeatedly.
  • Cesium ion updates include IFC metadata and a “region” field to improve performance.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in March:

New Cesium releases are available:

  • In CesiumJS 1.129, VoxelProvider.minimumBounds and .maximumBounds are now specified as physical values, rather than shape space values.
  • Cesium for Unreal 2.16.0 adds the ability to query the Cesium ion geocoder from Blueprints to resolve place names and addresses to longitude and latitude.
  • Cesium for Unity 1.16.0 adds CesiumUrlTemplateRasterOverlay component, allowing a raster overlay to be added using tiles requested based on a specified URL template.
  • Cesium for Omniverse now targets Kit 106.5.
  • Cesium ion highlights include Design Tiler, Reality Tiler, and Cesium ion for Autodesk Revit Add-In improvements.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in April:

New Cesium releases are available:

  • CesiumJS 1.130 adds basic support for draping imagery on 3D Tiles.
  • Cesium for Unreal 2.16.1 adds support for TRIANGLE_FAN primitives in tile meshes.
  • Cesium for Unity 1.16.1 incorporates Cesium Native v0.48.0.
  • Cesium ion highlights include Design Tiler and Reality Tiler updates.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in May:

New Cesium releases are available:

  • CesiumJS 1.131 adds experimental support for loading 3D Tiles with Gaussian splats encoded with SPZ compression using the draft glTF extension.
  • Cesium for Unreal 2.17.0 adds support for Unreal Engine 5.6.
  • Cesium for Unity 1.16.2 fixes broken support for TRIANGLE_FAN primitives in tile meshes.
  • Cesium ion highlights include analysis on point clouds, tech preview for mesh reconstruction from photos, tech preview for Gaussian splats, and Reality Tiler updates.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in June:

New Cesium releases are available:

  • CesiumJS 1.132 fixes incorrect polygon culling in 2D scene mode.
  • Cesium for Unreal 2.18.0 adds the ability to load GeoJSON and render its lines and polygons draped over terrain or 3D Tiles.
  • Cesium for Unity 1.17.0 adds support for Cesium3DTileset tile selection using orthographic views.
  • Cesium ion highlights include improved rendering, scaling, and positioning of Gaussian splats.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in July:

New Cesium releases are available:

  • CesiumJS 1.133 adds Ellipsoid.MARS for use with Mars terrain and imagery.
  • Cesium for Unreal 2.19.1 adds assets for the IAU2015 Moon and Mars ellipsoids under Content.
  • Cesium for Unity 1.18.0 adds option to ignore the KHR_material_unlit extension to force default lighting on tilesets.
  • Cesium ion highlights include updates to the reality tiler and design tiler … and a new 3D Tileset coming soon.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in August:

New Cesium releases are available:

  • CesiumJS 1.134 adds Google2DImageryProvider to load imagery from Google Maps.
  • Cesium for Unreal 2.20.0 adds support for rendering glTFs with line primitives.
  • Cesium ion highlights include Google Maps attribution, Mars data, and tilers updates.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in September:

New Cesium releases are available:

  • CesiumJS 1.135 adds experimental support for loading 3D Tiles as terrain, via Cesium3DTilesTerrainProvider.
  • Cesium for Unreal 2.21.0 adds CesiumAzureMapsRasterOverlay.
  • Cesium for Unity 1.19.0 adds CesiumGoogleMapTilesRasterOverlay and CesiumAzureMapsRasterOverlay.
  • Cesium ion highlights include Google Maps 2D imagery, Cesium Stories, Cesium ion Self-Hosted 1.8.0, and reality tiler updates.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in October:

New Cesium releases are available:

  • CesiumJS 1.136 has improvements to picking and billboards
  • Cesium for Unity 1.19.1 added much-requested experimental support for web builds
  • Cesium for Unreal 2.21.1 includes bug fixes
  • Cesium ion has now added Azure Maps 2D imagery assets as a Technology Preview

Find more details and downloads in the blog post: Cesium Releases in December 2025 – Cesium

Also, in case you missed it, we’ve published these blog posts in November:

Hello, community! Our next set of releases will come Monday, January 5, 2026.

Happy New Year!

New Cesium releases are available:

  • CesiumJS 1.137 adds fixes for texture coordinates in large billboard collections.
  • Cesium for Unreal 2.22.0 replaces the “Auto Fill” button on UCesiumFeaturesMetadataComponent with “Add Properties”.
  • Cesium for Unity 1.21.0 adds support for refreshing Cesium ion login tokens after they expire and the refresh token is still valid.
  • Cesium for Omniverse 0.26.0 fixed loading KTX2 textures with mipmaps.
  • Cesium ion highlights include updates to the Design Tiler and Reality Tiler.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in December:

New Cesium releases are available:

  • CesiumJS 1.138 fixes jitter artifacts on Intel Arc GPUs.
  • In Cesium for Unreal 2.23.0, when adding a CesiumCartographicPolygon to the level via the Cesium panel, the polygon is now created in the current Editor view, rather than at the origin.
  • Cesium for Unity 1.22.0 fixes a bug that prevented CesiumGoogleMapTilesRasterOverlay from being added to a GameObject in more recent versions of Unity.
  • Coming this week for Cesium ion: Design and Reality Tilers will be packaged with the tilers and tools in the 3D Tiling Pipeline.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in January:

New Cesium releases are available:

  • CesiumJS 1.139 adds panorama support via new EquirectangularPanorama and CubeMapPanorama classes, along with GoogleStreetViewCubeMapPanoramaProvider for loading cube map faces from the Google Street View Static API and rendering them in a cube map panorama.
  • Cesium for Unreal 2.24.1 adds support for loading tilesets with the KHR_gaussian_splatting extension.
  • Cesium for Unity 1.23.0 adds CesiumGeoJsonDocumentRasterOverlay, allowing stylized GeoJSON to be rasterized and draped over terrain and other 3D Tiles.
  • Cesium for Omniverse 0.27.0 now requires Kit 107.3 or above (Isaac Sim 5.1.0 or above).
  • Cesium ion updates include additional options for running photo reconstruction jobs via Cesium ion SaaS, a new version of Cesium ion-Self-Hosted, and the terrain-and-imagery-tiler producing 3D Tiles 1.1 output.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in February:

New Cesium releases are available:

  • CesiumJS 1.140 fixes a regression with the NGA-GPM local extension and custom shaders.
  • Cesium for Unreal 2.25.0 adds support for tilesets containing 3DTILES_content_voxels. Voxel metadata can be styled with materials generated by UCesiumVoxelMetadataComponent.
  • Cesium for Unity 1.23.1 updates cesium-native from v0.58.0 to v0.59.0.
  • Cesium for Omniverse 0.28.0 now requires Kit 109.0 or above (Isaac Sim 6.0.0 or above).
  • Cesium ion Self-Hosted 1.9.0, plus Gaussian splats and design tiler updates.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in March:

New Cesium releases are available:

  • CesiumJS 1.141 adds support for properties (EXT_structural_metadata) in vector tilesets.
  • Added ACesium3DTileset::UnloadEditorTilesInPlayMode, which toggles whether in-editor tileset instances should unload their tiles before Play-in-Editor begins.
  • Cesium for Unity 1.23.2 fixes a bug in CesiumRasterOverlays::GeoJsonDocumentRasterOverlay where styles set on geometry objects within a FeatureCollection were not applied.
  • SSO in Cesium ion SaaS, Cesium ion Self-Hosted 1.10.0, and tilers updates.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in April:

New Cesium releases are available:

  • In CesiumJS 1.142, Sandcastle now ships with Cesium Copilot, an in-app AI coding assistant that writes, edits, and debugs CesiumJS code in the same panel as the live preview.
  • Cesium for Unreal 2.27.0 adds CesiumVectorTilesRasterOverlay supporting vector data loaded from 3D Tiles tilesets.
  • In Cesium for Unity 1.23.3, the native Android library (libCesiumForUnityNative.so) is now built with 16 KB ELF segment alignment.
  • Cesium ion and tilers updates include expanded support for design model formats and technology previews for vector and voxel tilers.

More highlights and downloads are on our blog:

In case you missed them, we published these blog posts in May: