RabbitMQ 3.11.9

[michaelklishin]

RabbitMQ 3.11.9 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.
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

• Stream delivery using RabbitMQ Stream protocol v2 could fail to start in some cases.

  GitHub issue: #7118

• Nodes could run into an exception with certain publishers that used QPid for client library.

  GitHub issue: #7119

• When discovering feature flags across the cluster, default stability level is now experimental and not stable.

  GitHub issue: #7156

• Reset and manually added nodes could start receiving stream replica data before its database was initialized,
  confusing all code paths that expected a blank node state.

  GitHub issue: #7222

• Fixed a minor issue with feature flag log message formatting.

  GitHub issue: #7233

Enhancements

• Improved support for the AMQP 1.0 message format (used internally by streams), in particular, when original message
  was published using AMQP 1.0.

  GitHub issue: #7001

CLI Tools

Features

• rabbitmqctl set_permissions_globally is a new command that sets up user permissions in all existing virtual hosts.

  GitHub issue: #1000

• rabbitmq-diagnostics cluster_status now lists how many CPU cores are available to individual nodes, plus a total.

  GitHub issue: #7135

Management Plugin

Bug Fixes

• Limits tab failed to load when there were no limits configured.

  GitHub issue: #7142

Enhancements

• It is now possible to disable operator policy modifications. This can be necessary in
  RabbitMQ-as-a-Service environments.

  Contributed by @illotum (AWS).

  GitHub issue: #7131

AMQP 1.0 Plugin

Enhancements

• Support for OAuth 2 authentication and authorization backends.

  GitHub issue: #6931

MQTT Plugin

Bug Fixes

• MQTT nodes did not correctly remove client IDs for clients connected to a node that was in the process of
  being removed from the cluster.

  GitHub issue: #7162

OAuth 2 Plugin

Bug Fixes

• auth_oauth2.additional_scopes_key had no effect.

  Contributed by @brunomedeirosdedalus.

  GitHub issue: #7190

LDAP Plugin

Bug Fixes

• Due to a $ sign escaping differences between Make and Bazel (the newly adopted build tool),
  default value of of user_dn_pattern setting was incorrect (had an extra $).

  GitHub issue: #7161

Dependency Upgrades

None in this release.

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.11.9.tar.xz
instead of the source tarball produced by GitHub.

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This discussion was created from the release RabbitMQ 3.11.9.