The document summarizes an upcoming OpenDaylight release called Lithium. Some key points:
- Lithium is the 3rd major release from OpenDaylight, following Helium. It is scheduled for release in June 2015.
- Lithium aims to improve the core controller through refactoring, improve integration with OpenStack, and add new features.
- A major change is the planned deprecation of the AD-SAL abstraction layer in Lithium and removal in the next release.
- 41 projects are contributing to Lithium across areas like platform enhancements, network abstractions, and development support.