It also supports remote execution of lejos methods, but there is currently no documentation for this.
It now supports LegOS-style LNP comms including addressing individual RCXs, and listening on multiple ports. For this you need a new version of rcxrcxcomm.jar as well.
To install pcrcxcomm.jar, rename the pcrcxcomm.jar file in the lib directory of your lejos installation, e.g. to pcrcxcomm.jar.save and replace it with the new version. Do the same for rcxrcxcomm.jar.
Download the new version of pcrcxcomm.jar
Download the new version of rcxrcxcomm.jar