The release includes deeper OpenStack integration and improved security.
The OpenDaylight Foundation released the second version of its open source codebase to the public.
OpenDaylight, formed in April 2013, aims to build a common and open SDN controller for developers to utilise, contribute and build commercial products and technologies.
The Helium software, or OpenDaylight 2.0, is the latest open source codebase to power the SDN controller, which claims better integration with OpenStack and the Open vSwitch database project.
Other features include the ability to perform clustering for failover, AAA (Access, Authorisation and Accounting) to boost SDN user security and fixed bugs.
The software, which is available to download now, also allows users to manage a network through declarative policies.
The OpenDaylight community is iterating, shaping and defining a de facto standard for SDN and NFV through code creation," said Neela Jacques, executive director, OpenDaylight.
"They’ve taken on the monumental task of bringing together all the disparate technologies, thoughts and ideas around SDN and forming it into a cohesive platform."
The upgrade comes following the first major OpenDaylight release, called Hydrogen, back in February.
It also comes as OpenDaylight’s list of industry partners continues to grow in the networking space.