- Requires Erlang 25; nodes on older Erlang won’t start (breaking change) and performance improves on ARM64 and TLS 1.3 support
- Core server enhancements: more efficient import of many‑stream definitions, lower CPU/memory for idle streams, improved WAL handling for quorum queues, and reduced memory for dead‑lettering
- Various bug fixes and security updates: prevents LDAP passwords leaking to logs, faster diagnostics for large quorum queues, clearer error messages for stream‑related commands
RabbitMQ 3.11.4
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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.