The API supports HTML5 and CSS3 components, so you can develop apps that take advantage of modern browser capabilities to improve performance and flexibility. You can also use developer-friendly widgets, flexible UI placement tools, and pop-up windows to build apps that are responsive to any screen size.
- Fast feature layers: Interact with more than a million features
- Initial release of sketching tools
- OGC enhancements - WMS and WMTS layers can now be visualized in a 3D scene
Fast feature layer rendered with WebGL (beta)
You can explore the full release notes and more information in this Esri Blogpost.