- Fixed Windows-specific memory leak in Erlang's file:read/1 and improved disk‑space monitoring robustness
- Reduced CPU usage for AMQP 0‑9‑1 operations and corrected a misplaced help tip in the Management UI
- Deprecated classic health check is now less resource‑intensive, though still discouraged
RabbitMQ 3.8.27
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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.