Cesium Releases in July 2026
In June, we hosted about 400 3D geospatial enthusiasts in Philadelphia for the second Cesium Developer Conference. The excitement was contagious as users and Cesium + Bentley teammates learned from each other and shared their recent work. The many Cesium product announcements included two you can read more about in blog posts from earlier this week: upcoming vector data support in 3D Tiles and expanded BIM/CAD support and metadata queries. And if you couldn’t attend devcon, are curious about sessions you missed, or want to revisit your favorite talks, the video recordings for the entire conference will be posted in a few weeks.
Read on for recent release notes, and be on the lookout for more announcements in coming weeks, including integration of iTwin Capture into Cesium ion Self-Hosted for 3D model reconstruction from photos.
The ionosphere was a new dedicated area at the 2026 Cesium Developer Conference for attendees to connect directly with the engineers and product teams building the tools they use every day.
Keith Bentley (right) presented the Bentley Lifetime Achievement Award to Richard Hipp, creator of SQLite.
Panel: Standards at Scale: Building an Open, Interoperable Geospatial Ecosystem, featured a conversation among Amanda Morgan, Neil Trevett, Tam Belayneh, Ben Irwin, and Scott Simmons.
Developers, creators, and innovators from across the 3D geospatial ecosystem connected in Philadelphia for three days of learning, collaboration, and community.
Sessions spanned aerospace, defense, and simulation; product roadmaps; digital twins and AEC; and next-gen data and 3D workflows.
Social gatherings included the welcome reception, the final night party, and ad hoc hallway chats.
We made improvements across Cesium this month. To get notifications about our monthly releases, you can subscribe to the Cesium release roundup thread on our community forum.
CesiumJS 1.143 release
CesiumJS 1.143 is now available. Highlights of the release include:
- Added support for the
KHR_meshopt_compressionglTF extension, including the v1 attribute codec and theCOLORfilter. #13553 - Added
PathGraphics.materialMode. A value of "PORTIONS" allows visualizing the path in segments with different materials specified by intervals or sampling. Each segment material is determined by thematerialproperty value at the corresponding simulation time. The default value of "WHOLE" preserves existing material behavior. #13530 - Fixed a bug that caused crashes when using billboards in environments that replace
Promisewith custom promise implementations. #13475
For more details, see the changelog.
A multiphase satellite maneuver visualized in CesiumJS using colored path segments.
Cesium for Unreal 2.28.0 release
Cesium for Unreal v2.28.0 is now available. This is the last release that will support Unreal 5.5. Future versions will require Unreal 5.6+. Highlights of this release include:
- Added support for Unreal Engine 5.8.
- Fixed a crash that could occur when zooming to a tileset with Update in Editor disabled.
- Fixed Gaussian splats not rendering in Standalone Game sessions launched from the editor.
In addition to the above, this release updates cesium-native from v0.61.0 to v0.62.0. See the changelog for a complete list of changes in cesium-native.
Check the Cesium for Unreal release and the Cesium for Unreal Samples release for the full list of updates.
Cesium for Unity 1.24.0 release
Cesium for Unity v1.24.0 is now available. Highlights of this release include:
- Added support for rendering glTFs with line primitives.
In addition to the above, this release updates cesium-native from v0.61.0 to v0.62.0. See the changelog for a complete list of changes in cesium-native.
Check the Cesium for Unity changelog for the full list of updates, and follow our Cesium for Unity tutorials to get started.
glTF line primitives visualized in Cesium for Unity.
Cesium for Omniverse 0.29.0 release
Cesium for Omniverse v0.29.0 is now available. Highlights of this release include:
- Cesium for Omniverse now requires Kit 110.0 or above (Isaac Sim 6.0.0-dev2 or above).
- Fixed bug where polygon clipping was rendering black instead of discarding.
Peruse the changelog for the full list of updates, and get started with our Cesium for Omniverse tutorials.
Cesium ion and tilers updates
Cesium ion SaaS
- Users can import iModels from Bentley Infrastructure Cloud to Cesium ion to make them available for streaming as 3D Tiles.
- Users can now convert NetCDF files into 3D Tiles through the voxel tiler.
- Users can now convert GeoJSON data into 3D Tiles through the vector tiler.
Cesium ion Self-Hosted
- Coming soon: reconstructing 3D reality models from photos, powered by iTwin Capture technology. All of the reality modeling capabilities in Cesium ion SaaS will be available to Self-Hosted users, including the option to create Gaussian splats with LODs. Connect with your account manager to learn more.
Design tiler
- Tweaked IFC swept circular geometry for more consistent rotational offsets.
Point clouds tiler
- Coming soon: fixing an issue where PNTS attributes could have incorrect alignment if compression was turned off.
Powered by Cesium
NTT Software Innovation Center is conducting research and development on a computing architecture referred to as the “Space Data Center.” As part of the effort to support the design and validation of this architecture, NTT is using CesiumJS.
Inter-satellite communication links visualized in a distributed network architecture. Courtesy NTT.