- Adds quorum‑queue enhancements: reject‑publish max‑length overflow strategy, consumer priority, and new CLI commands for peeking and memory reclamation.
- Introduces per‑user connection/queue limits, TLS 1.3 enabled by default, auth‑attempt metrics, and definition‑import safety improvements.
- Deprecates boot‑time definition import in the management plugin and drops support for Erlang 21.3; includes numerous bug fixes and dependency upgrades.
RabbitMQ 3.8.10
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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.