> "alarming...no good excuse...idiotic"

You don't have to use it, but your criticism is excessive. As a casual bystander providing nothing but commentary, you really don't get to choose the priorities and schedule of an open source project.

They provide software that runs on currently supported platforms, and they are working on 18.04 support - sounds like it is the focus current development effort for the next release: https://groups.google.com/d/msg/bigbluebutton-dev/qWjV2zoc4h...