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3.12.13.md

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RabbitMQ 3.12.13 is a maintenance release in the 3.12.x release series.

This release goes out of community support on June 1st, 2024.

Please refer to the upgrade section from the 3.12.0 release notes if upgrading from a version prior to 3.12.0.

This release requires Erlang 25 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 3.12.0, RabbitMQ requires Erlang 25. Nodes will fail to start on older Erlang releases.

Users upgrading from 3.11.x (or older releases) on Erlang 25 to 3.12.x on Erlang 26 (both RabbitMQ and Erlang are upgraded at the same time) must consult the v3.12.0 release notes first.

Changes Worth Mentioning

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

Core Broker

Bug Fixes

  • When a channel is closed, its consumer metric samples will now be cleared differently depending on the number of them. In #9356, it was over optimized for the uncommon case with a very large number of consumers per channel, hurting the baseline case with one or a few consumers per channel.

    In part contributed by @SimonUnge (AWS).

    GitHub issue: #10478

CLI Tools

Enhancement

  • CLI tool startup time was reduced.

    GitHub issue: #10461

Bug Fixes

  • JSON output formatter now avoids ANSI escape sequences.

    Contributed by @ariel-anieli.

    GitHub issue: #8557

  • ANSI escape sequences are no longer used on Windows.

    Contributed by @ariel-anieli.

    GitHub issue: #2634

Stream Plugin

Bug Fixes

  • If a stream publisher cannot be set up, a clearer message will be logged.

    GitHub issue: #10524

Management Plugin

Bug Fixes

  • GET /api/nodes/{name} failed with a 500 when called with a non-existed node name.

    GitHub issue: #10330

Shovel Plugin

Bug Fixes

  • AMQP 1.0 Shovels will no longer set a delivery mode header that is not meaningful in AMQP 1.0.

    Contributed by @luos (Erlang Solutions).

    GitHub issue: #10503

Federation Plugin

Bug Fixes

  • Upstream node shutdown could produce a scary looking exception in the log.

    GitHub issue: #10473

  • Exchange federation links could run into an exception.

    Contributed by @gomoripeti (CloudAMQP).

    GitHub issue: #10305

Dependency Changes

  • cowboy was updated to 2.11.0

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.12.13.tar.xz instead of the source tarball produced by GitHub.