ECF 3.10 has been released as part of Mars. Some highlights:
Remote Services Tooling - A new Remote Services perspective with views to help design, test, discover, and debug Remote Services
OSGi R6 - Full support for OSGi R6 Remote Services/Remote Service Admin specifications. Full spec compliance via the OSGi compatibility test suite
New Providers - Support added for websockets and MQTT-based distribution providers, and etcd-based discovery
Apache Karaf - ECF Remote Services can now be easily installed into Apache Karaf
New Tutorials, Examples, and Documentation
More on the New and Noteworthy. Download here or via repository included in Eclipse Mars.