ArcGIS Living Atlas provides foundational elevation layers that all ArcGIS users consume in their maps, scenes, and applications. We are excited to share that the Terrain 3D, TopoBathy 3D, World Hillshade and World Hillshade (Dark) layers are now enhanced with bare earth elevation data from Maxar’s Precision3D (P3D) for parts of the globe.
The Precision3D Digital Terrain Models (DTM’s) are 50 cm resolution that are derived from Maxar’s extensive archive of high-resolution satellite imagery using stereo photogrammetry techniques where vegetation and structures were removed from data using automated methods.

For more information, see Maxar's Precision3D available in Esri's World Elevation 3D and Hillshade Layers by @RajinderNagi.
Visit the ArcGIS Living Atlas home page to learn about what's new and how to use content. See the ArcGIS Living Atlas blog for more blog articles that help you get the most out of Living Atlas.