rabbitmq-server/release-notes/3.11.17.md

RabbitMQ 3.11.17 is a maintenance release in the 3.11.x release series.

Please refer to the upgrade section from v3.11.0 release notes if upgrading from a version prior to 3.11.0.

This release requires Erlang 25 and supports Erlang versions up to 25.3.x. RabbitMQ and Erlang/OTP Compatibility Matrix has more details on Erlang version requirements for RabbitMQ.

Minimum Supported Erlang Version

As of 3.11.0, RabbitMQ requires Erlang 25. Nodes will fail to start on older Erlang releases.

Erlang 25 as our new baseline means much improved performance on ARM64 architectures, profiling with flame graphs across all architectures, and the most recent TLS 1.3 implementation available to all RabbitMQ 3.11 users.

Changes Worth Mentioning

Release notes can be found on GitHub at rabbitmq-server/release-notes.

Core Server

Bug Fixes

• Fixed two quorum queue federation issues.

  GitHub issue: #8282

• Nodes that had a large number of quorum queues could observe accumulation of Erlang processes under significant load.

  Contributed by @SimonUnge (AWS).

  GitHub issue: #7389

• Nodes could hang when recovering classic queue indices during boot.

  GitHub issue: #8343

• As of #6418, nodes refuse to start if the definitions file cannot be parsed as valid JSON.

  Now this also applies to nodes that were configure to skip definition import if the input file(s) has changed using the definitions.skip_if_unchanged setting.

  GitHub issue: #8372

Enhancements

• Reduce CPU footprint of quorum queue metric emission in clusters with a lot of quorum queues.

  Contributed by @SimonUnge (AWS).

  GitHub issue: #7389

Management Plugin

Bug Fixes

• The plugin reported the interface its listener(s) were bound to incorrectly.

  GitHub issue: #8242

Enhancements

• It is now possible to change default queue type for a virtual host using the PUT /api/vhosts/{name} endpoint.

  GitHub issue: #8342

Web STOMP Plugin

Bug Fixes

• The plugin reported the interface its listener(s) were bound to incorrectly.

  GitHub issue: #8242

Web MQTT Plugin

Bug Fixes

• The plugin reported the interface its listener(s) were bound to incorrectly.

  GitHub issue: #8242

Debian Package

Bug Fixes

• Make-based source package builds were failing in an offline environment.

  GitHub issue: #7869

RPM Package

Bug Fixes

• Make-based source package builds were failing in an offline environment.

  GitHub issue: #7869

Dependency Upgrades

• CSV parser used by CLI tools was upgraded to 3.0.5

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.11.17.tar.xz instead of the source tarball produced by GitHub.