RabbitMQ 3.8.0-rc.1 is available for community testing [1].
It has several prominent new features, significantly improved monitoring support
thanks to a new Prometheus plugin that's included into the distribution and Grafana
dashboards to go with it, support for mixed version (3.7/3.8) clusters that simplifies upgrades,
OAuth 2/JWT token support and more.
Please take a look at the release notes, the What's New in 3.8 webinar recording
linked in it [2] and give this RC a try. Depending on the feedback
we expect 3.8 to spend from 2 to 6 weeks in this RC/testing stage.