Thank you to forum user Larrydic for the suggestion (viewtopic.php?p=8566#p8566).
We are setting up a web event using our self-hosted Jitsi server.
To register for the event use the following form: https://forms.gle/ysHqVUQchuUhW5NR9
This will allow us to send you the credentials for the event. It will also help us size the server hosting the web conference software.
Since this is the first event ever hosted, we are unsure what the actual format will be. For now we plan to do as user Larrydic suggested and start with a showcase or guided tour of the new features of version 4.0. If time and opportunity allows we can do a Q/A session.
Thank you.