A New UI Design
Create a consistent experience across mobile and the web with material design, the new Google-wide standard.
A New Runtime
Test your apps and get them ready for ART (Android Runtime), the default runtime in the next release.
Get control over where notifications appear, how they look, and how they sync to non-handheld devices.
Project Volta is our effort to make the platform energy efficient and to give you more control over resource usage.
See the API overview for more information on the rest of the new and updated features.