With CesiumJS 1.100, released Dec 1, we’ve taken another step in modernizing CesiumJS: now introducing a new modular structure.
You can download the entire CesiumJS release or just what you need through smaller packages.
Not only does this mean you can download a leaner bundle, but you also don’t need to install all of the direct dependencies that are synced with the existing cesium npm package.
Read Sam’s explanation of the rationale, implementation details, and future work: