- Fixed numerous bugs across core server, CLI tools, and discovery plugins (Kubernetes, AWS, Consul, etcd), plus Erlang client and tracing plugin.
- Dropped support for Erlang/OTP 20.3; upgrade Erlang to 21.x+ before upgrading RabbitMQ, with ordering guidance to avoid CLI incompatibilities.
- Improved IPv6 handling in peer discovery plugins and added better error handling/diagnostics.
RabbitMQ 3.7.20
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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.