- Introduces Streams enhancements: single‑active consumer and partitioned “super streams”, plus OAuth 2 authentication support.
- Graduates many 3.8 feature flags to always‑enabled and raises minimum Erlang to 25.0, causing upgrades to fail if not met.
- Improves connection handling (higher default connection limit, more efficient tracking) and adds performance, UI, and bug‑fix improvements.
RabbitMQ 3.11.0
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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.