Resolution:
No, there is no new version for Hawk Rendezvous Messaging Adapter. Actually,  the old RVHMA was replaced by the messaging plugin.
With the new messaging plugin, you can have the same function of the RVHMA and you can take the benefit that, there is no need to maintain a separate rvhma service out of the Hawkagent. You only need to start the hawkagent to get this microagent.
Regarding to the messaging plugin, please refer to Hawk document -> Installation and Configuration -> Chapter 8 Using the TIBCO Hawk Messaging Microagent.