- Reintroduced transient flow control between classic queue replicas and AMQP/MQTT channels that was unintentionally removed in 4.0.0.
- Fixed several bugs: false‑positive deprecation warnings, JWT token refresh UI issue, peer‑discovery removal exceptions, and handling of non‑ASCII entity names.
- Enhanced export definitions (default queue type injection, type markers) and added new Prometheus stream metrics.
RabbitMQ 4.0.5
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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.