- New org.osgi.framework.UnfilteredServiceListener interface
- New org.osgi.framework.VersionRange class
- The Resource API and it's use in the Wiring API
- New osgi.identity namespace
- New value and new default for org.osgi.framework.bsnversion framework property
- support for static valueOf methods in the Filter
- Enhanced Bundle.adapt() to support AccessControlContext
- Updates to the Bundle Hook Specification (Bundle Collision Hook)
But the main benefit as I see it that we can now run OSGi Subsystems, such as the Apache Aries implementation, on Apache Felix! For more details on that see this blog post: http://coderthoughts.blogspot.com/2014/01/osgi-subsytems-on-apache-felix.html