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Cesium Version 1.39 Released

We are happy to announce the release of Cesium 1.39. Highlights include:

  • Cesium now officially supports webpack, a highly customizable, open-source build tool for bundling JavaScript applications. See our Integrating Cesium and webpack blog post for more details.
  • Added support for right-to-left language detection in labels, currently Hebrew and Arabic are supported. To enable it, set Cesium.Label.enableRightToLeftDetection = true at the start of your application. #5771
  • Numerous KML bugfixes and improvements.

For the full list of changes, see the change log.

Right-to-left language support in labels.


  • Wilson Muktar explained in a guest post how he integrated Cesium with Three.js, a lightweight cross-browser JavaScript library used to create and display animated 3D computer graphics in a browser. The post includes links a demo and the code itself.
  • The Swiss Federal Geoportal’s 3D viewer, which uses Cesium and 3D tiles, has released a new beta that now displays more than 80 million features in Switzerland, including buildings and trees.
  • In her article “Opening Doors with Open Source,” Judy Weng explains how participating in Cesium’s open source project as a student helped her grow in confidence and learn from more experienced programmers, and how open source projects are especially good opportunities for encouraging underrepresented minorities in computer science.

Swiss Federal Geoportal 3D viewer

The newest beta of the Swiss Federal Geoportal’s 3D viewer.


We have three new showcases up on our demos page.



Moon Trek