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3.11.11.md

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RabbitMQ 3.11.11 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

  • Streams consumers that oscillate between being active and inactive, or just happen to be temporarily become really slow, could become completely starved of deliveries. That is, their message delivery rate could drop to 0 while other consumers did not have this problem.

    GitHub issue: #7638

  • Stream coordinator process memory footprint is now reported correctly (and classified differently).

    Contributed by @gomoripeti (CloudAMQP).

    GitHub issue: #7548

Enhancements

  • There is now a way to pre-configure users and their permissions for newly created virtual hosts:
default_users.qa_user.vhost_pattern = qa.*
default_users.qa_user.tags = policymaker,monitoring
default_users.qa_user.password = fd237824441a78cd922410af4b83f0888186a8d7
default_users.qa_user.read = .*
default_users.qa_user.write = .*
default_users.qa_user.configure = .*

This is primarily useful in environments where RabbitMQ is provided as a service but customers (clients) have control over virtual hosts.

Contributed by @illotum (AWS).

GitHub issue: #7208.

Management Plugin

Bug Fixes

  • HTTP API will now respond with a 405 Method Not Allowed instead of a 500 when an unsupported method is used by the client.

    Contributed by @gomoripeti (CloudAMQP).

    GitHub issue: #7675

STOMP Plugin

Enhancements

  • Consumers on /queue/ destinations that consume from streams now can specify the x-stream-max-segment-size-bytes setting via SUBSCRIBE frame headers.

    GitHub issues: #7605

etcd Peer Discovery Plugin

Bug Fixes

  • Node key TTL setting was unintentionally ignored.

    GitHub issues: #7554

Dependency Upgrades

None in this release.

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.11.11.tar.xz instead of the source tarball produced by GitHub.