release notes here, and the major additions are the Raspberry Pi installation, the REST interface and the support for IKEA Trådfri. As usual, the features have already been available in the nightly build for a while.
A new part of the WEB-Site is the Feature Index. This is a way to try to visualize all the features that are available in OpenNetHome, and to guide you to the proper HomeItems to use that feature. Welcome in to browse around the features!