- Fixed core server bugs affecting rolling upgrades diagnostics, Windows handle counting, node maintenance state replication, and CLI warning output.
- Fixed authentication backend plugins (HTTP and LDAP) that were incorrectly refusing AMQP 1.0 client connections.
- Updated dependencies (osiris to 1.6.2) and now requires Erlang 25, providing performance improvements.
RabbitMQ 3.11.21
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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.