- RabbitMQ 3.12.12 is a maintenance release requiring Erlang 25 (supports up to 26.2.x) and ending community support on June 1 2024.
- Fixes address quorum‑queue process buildup, missing authentication context propagation, improved feature‑flag persistence during shutdown, plus MQTT, Stream, AWS discovery plugin and CLI tool bug fixes.
- No dependency upgrades; type specifications were simplified in core and several plugins.
RabbitMQ 3.12.12
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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.