RabbitMQ 3.11.8 Release Highlights: Core Server Enhancements, CLI Updates, Plugin Fixes, and Dependency Upgrades

RabbitMQ is an open‑source implementation of the Advanced Message Queuing Protocol (AMQP) written in Erlang, known for high performance, robustness, and scalability.

Version 3.11.8 is a maintenance release of the 3.11 series, requiring at least Erlang 25, and brings several notable changes.

Core Server

Enhancements

Improved streaming throughput for workloads with a large number of very small (e.g., <10‑byte) messages (GitHub issue #6862).

Command‑line Tools

rabbitmqctl hash_password

– a new command that generates a hash of the supplied password (GitHub issue #5957). rabbitmq-diagnostics check_port_connectivity now supports the optional --address flag to check connectivity to a specific IP address instead of resolving the node’s hostname (GitHub issue #6853).

Management Plugin

Bug Fixes

Pagination in the user filtering and management UI no longer behaves incorrectly (GitHub issue #4908).

Correctly formatted JSON field values in the channel details API response (GitHub issue #2684).

AMQP 1.0 Plugin

Bug Fixes

Fixed a memory leak caused by AMQP 1.0 connection stream loss (GitHub issue #6969).

STOMP Plugin

Bug Fixes

STOMP client subscriptions to AMQP 0‑9‑1 exchanges now correctly declare auto‑delete, exclusive queues (previously only auto‑delete) (GitHub issue #6955).

Dependency Upgrades

osiris

upgraded from 1.4.2 to 1.4.3. thoas upgraded from 0.4.1 to 1.0.0.