- Introduces Quorum Queues based on Raft for stronger data safety and parallel replication, plus Single Active Consumer and Feature Flags for safer rolling upgrades.
- Adds built‑in Prometheus metrics with Grafana dashboards, OAuth 2.0/JWT authentication backend, expanded TLS options, and encrypted storage of sensitive plugin credentials.
- Requires Erlang 21.3+ (breaking compatibility) and bundles extensive bug fixes and usability improvements across core, CLI, and management plugins.
RabbitMQ 3.8.0
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Core server bug fixes: duplicate direct‑reply deliveries, quorum queue recovery issues, malformed AMQP 1.0 frames, topic‑exchange wildcard limits, and OAuth proxy header handling.