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rabbitmq-server/release-notes/3.10.2.md

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RabbitMQ 3.10.2 is a maintenance release in the 3.10.x release series.

Please refer to the upgrade section from v3.10.0 release notes if upgrading from a version prior to 3.10.0.

This release requires at least Erlang 23.2, and supports Erlang 24 and 25. RabbitMQ and Erlang/OTP Compatibility Matrix has more details on Erlang version requirements for RabbitMQ.

Changes Worth Mentioning

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

Core Server

Enhancements

  • 40 to 50% throughput improvement for some workloads where AMQP 0-9-1 clients consumed from a stream.

    GitHub issue: #4811

  • Configuration of fallback secrets for Shovel and Federation credential obfuscation. This feature allows for secret rotation during rolling cluster node restarts.

    Contributed by Lajos @luos Gerecs.

    GitHub issue: #4847

  • Reduced memory footprint of individual consumer acknowledgements of quorum queue consumers.

    GitHub issue: #4801

  • Reduced filesystem I/O contention for workloads where a large number of classic queues v2 (CQv2) were concurrently deleted.

    GitHub issue: #4844

Bug Fixes

  • Default log level used a four-character severity abbreviation instead of more common longer format, for example, warn instead of warning.

    GitHub issue: #4800

CLI Tools

Enhancements

  • rabbitmq-diagnostics status now reports crypto library (OpenSSL, LibreSSL, etc) used by the runtime, as well as its version details.

    GitHub issue: #4799

Bug Fixes

  • CLI tools failed to run on Erlang 25 because of an old version of Elixir (compiled on Erlang 21) was used in the release pipeline. Erlang 25 no longer loads modules compiled on Erlang 21 or older.

  • rabbitmqctl set_log_level documentation clarification.

    Contributed by Péter @gomoripeti Gömöri (CloudAMQP).

    GitHub issue: #4794

Dependency Upgrades

Source Code Archives

To obtain source code of the entire distribution, please download the archive named rabbitmq-server-3.10.2.tar.xz instead of the source tarball produced by GitHub.