- Dropped support for Erlang/OTP 20.3; upgrade to Erlang 21+ before upgrading RabbitMQ
- Throughput improvements for MQTT, AMQP 1.0 and STOMP plugins; Web STOMP adds X.509 client‑certificate authentication
- General maintenance release with source‑archive clarification
RabbitMQ 3.7.23
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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.