RabbitMQ 3.13.1

RabbitMQ 3.13.1

RabbitMQ 3.13.1 is a maintenance release in the 3.13.x release series.
Starting June 1st, 2024, community support for this series will only be provided to regularly contributing users and those
who hold a valid commercial support license.

Please refer to the upgrade section from the 3.13.0 release notes
if upgrading from a version prior to 3.13.0.

This release requires Erlang 26 and supports Erlang versions up to 26.2.x.
RabbitMQ and Erlang/OTP Compatibility Matrix has more details on
Erlang version requirements for RabbitMQ.

Minimum Supported Erlang Version

As of 3.13.0, RabbitMQ requires Erlang 26. Nodes will fail to start on older Erlang releases.

Users upgrading from 3.12.x (or older releases) on Erlang 25 to 3.13.x on Erlang 26
(both RabbitMQ and Erlang are upgraded at the same time) must consult
the v3.12.0 release notes and v3.13.0 release notes first.

Changes Worth Mentioning

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

Core Broker

Bug Fixes

• Classic queue v2 message store compaction could fail behind under high enough load,
  significantly increasing node's disk space footprint.

  GitHub issues: #10696, #10681

• Improved quorum queue safety in mixed version clusters.

  GitHub issue: #10664

• When Khepri was enabled and virtual host recovery failed, subsequent recovery
  attempts also failed.

  GitHub issue: #10742

• Messages published without any headers set on them did not have a header property
  set on them. This change compared to 3.12.x was not intentional.

  GitHub issues: #10623, #10620

• Free disk space monitor on Windows ran into an exception if external call
  to win32sysinfo.exe timed out.

  GitHub issue: #10597

Enhancements

• channel_max_per_node is a new per-node limit that allows to put a cap on the number
  of AMQP 0-9-1 channels that can be concurrently opened by all clients connected to a node:

  # rabbitmq.conf
  channel_max_per_node = 5000

  This is a guardrail mean to protect nodes from application-level channel leaks.

  Contributed by @illotum (AWS).

  GitHub issue: #10754

Stream Plugin

Bug Fixes

• Avoids a Windows-specific stream log corruption that affected some deployments.

  GitHub issue: #10822

• When a super stream cannot be created because of a duplicate partition name,
  a more informative error message is now used.

  GitHub issue: #10535

CLI Tools

Bug Fixes

• rabbitmq-plugins list --formatter=json --silent will no longer emit any warnings
  when some of the plugins in the enabled plugins file are missing.

  Contributed by @Ayanda-D.

  GitHub issue: #10870

OAuth 2 Plugin

Bug Fixes

• Configuring a JWKS URL without specifying a CA certificate resulted
  in an exception with Erlang 26's TLS implementation.

  GitHub issue: #8547

Management Plugin

Bug Fixes

• Set default sort query parameter value for better compatibility with an external
  Prometheus scraper. Note that the built-in Prometheus plugin
  is the recommended way of monitoring RabbitMQ using Prometheus-compatible tools.

  GitHub issue: #10610

• When a tab (Connections, Queues and Streams, etc) is switched, a table configuration pane
  from the previously selected tab is now hidden.

  Contributed by @ackepenek.

  GitHub issue: #10799

Enhancements

• GET /api/queues/{vhost}/{name} now supports enable_queue_totals as well as disable_stats.
  This combination of query parameters can be used to retrieve message counters while
  greatly reducing the number of metrics returned by the endpoints.

  Contributed by @aaron-seo (AWS).

  GitHub issue: #10839

Federation Plugin

Enhancements

• Exchange federation now can be configured to use a custom queue type for their internal buffers.

  To use a quorum queue, set the queue-type federation policy key to quorum.

  GitHub issues: #4683, #10663

• rabbitmq_federation_running_link_count is a new metric provided via Prometheus.

  GitHub issue: #10345

Dependency Changes

• osiris was updated to 1.8.1
• khepri was upgraded to 0.13.0
• cowboy was updated to 2.12.0

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.13.1.tar.xz
instead of the source tarball produced by GitHub.