- Adds a new cluster formation size hint configuration and improves Prometheus metrics rendering efficiency
- Fixes multiple bugs including false network partition detection, TLS Prometheus endpoint storage, and queue/message count display issues
- Updates dependencies (ra 2.0.2, osiris 1.2.3) and reduces log noise during queue leader elections
RabbitMQ 3.9.9
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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.