- Minimum supported Erlang version upgraded to 27.0; Erlang/OTP 26 is now unsupported, causing nodes on older Erlang to fail to start (breaking change).
- Extensive bug fixes across core server, CLI tools, and many plugins (quorum queues, dead‑lettering, tracing, logging noise, permission checks, etc.).
- New enhancements include cryptographically secure password salts, leadership‑transfer commands for queues/streams, configurable HTTP response headers, and various plugin improvements (shovel, federation, MQTT, STOMP, LDAP, etc.).
RabbitMQ 4.3.3
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Core fixes: quorum‑queue metrics/snapshot after upgrades, stricter and faster AMQP 1.0 parsing.
Minimum supported Erlang version upgraded to 27.0; nodes on older Erlang will refuse to start.
Core server fixes: tie‑binding bug, correct storage of password‑less users, consumer activity updates, argument validation, default queue type handling, and smarter feature‑flag sync; plus enhancements like per‑node channel limits, paral...