I have added a LogoutEventStream trigger to my application. It works fine in a developer org, but I can't add it to my package. On the packaging org it appears in the Apex Triggers list like this:
The detail shows I have adequate code coverage, so it's not that:
But when I try to add it to the package, it's not there:
Obviously LogoutEventStream is a beta feature. Are we not allowed to add beta features to packages, or is there something I need to do to get this to work?