One thing that is missing is 5.x style advisory support so I wanted to discuss how we can add that. The two ideas I had were to either expand on the notification service support that already exists (ie add more notification types) or to implement it using the plugin API.
The easiest thing would be to just add new notification types to match existing advisory messages that were in 5.x. This uses the Core protocol and would be different addresses. I'm not sure if it also makes sense to try and have a plugin that will also publish OpenWire style advisory messages to the legacy 5.x topics as well. What do you guys think?