RabbitMQ - v3.11.26

RabbitMQ 3.11.26 is a maintenance release in the 3.11.x release series.
This release series goes out of community support on Dec 31, 2023.

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 Broker

Bug Fixes

• When a topic permission was deleted, an internal event of type permission.deleted
  was emitted in some cases, instead of topic.permission.deleted.

Investigated by @bedia.

GitHub issue: #9937

AMQP 1.0 Plugin

Bug Fixes

• Correctly block publishing AMQP 1.0 connections when a resource alarm is in effect.

GitHub issue: #9955

Shovel Plugin

Bug Fixes

• Shovels on 3.12.8 nodes failed during a rolling cluster upgrade due to internal
  identifier format changes.

Starting with this release, both old and new formats are supported for upgrade safety.

GitHub issue: #9894

Grafana Dashboard

Enhancements

• Global counters for producers are now available in the dashboard.

Contributed by @johanrhodin (CloudAMQP)

GitHub issue: #9846

CLI Tools

Enhancements

• rabbitmq-diagnostics list_policies_that_match [queue name] is a new command
  that simplifies troubleshooting of policy conflicts.

GitHub issue: #9916

Dependency Upgrades

None in this release.

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.11.26.tar.xz
instead of the source tarball produced by GitHub.