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| Item | Previously | Changed to… | Comments |
|---|---|---|---|
| Software version | RabbitMQ 3.7.12 Erlang 21.2.6 | RabbitMQ 3.7.21 Erlang 22.1.5 | |
| TLS | Versions 1.1 and 1.2 only. No peer verification if your TLS client sends a an optional client cert. Ssecure renegotiation allowed. | Versions 1.2 and 1.3 only. Peer verification performed if your TLS client sends a an optional client cert. Secure renegotiation disabled. | |
Queues | Classic queues which are mirrored and synchronized across all 3 nodes unless the queue name begins with an underscore. | The majority of queues will be converted to quorum queues, which is the new recommendation for clusters. A couple of queues that use features not compatible with quorum queues will remain as classic mirrored queues. | You do not need to change anything in your application. Info about quorum queues: https://www.rabbitmq.com/quorum-queues.html |
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