- Skip this version; upgrade directly to 3.13.6 or later and ensure you run Erlang 26 (nodes won’t start on older Erlang releases).
- Core broker and plugin bug fixes: quorum‑queue replica recovery, AMQP conversion bugs, dead‑letter header handling, MQTT memory spike, rabbitmqctl export, and peer‑discovery registration fixes.
- Minor enhancements and dependency updates: improved shovels AMQP conversion, forward‑compatible AWS API handling, and Ra library upgraded to 2.13.3.