74 lines
2.6 KiB
Markdown
74 lines
2.6 KiB
Markdown
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RabbitMQ `3.12.5` is a maintenance release in the `3.12.x` [release series](https://www.rabbitmq.com/versions.html).
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Please refer to the upgrade section from the [3.12.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.12.0)
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if upgrading from a version prior to 3.12.0.
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This release requires Erlang 25 and supports Erlang versions up to `26.0.x`.
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[RabbitMQ and Erlang/OTP Compatibility Matrix](https://www.rabbitmq.com/which-erlang.html) has more details on
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Erlang version requirements for RabbitMQ.
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### Minimum Supported Erlang Version
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As of 3.12.0, RabbitMQ requires Erlang 25. Nodes **will fail to start** on older Erlang releases.
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Users upgrading from 3.11.x (or older releases) on Erlang 25 to 3.12.x on Erlang 26
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(both RabbitMQ *and* Erlang are upgraded at the same time) **must** consult
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the [v3.12.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.12.0) first.
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## Changes Worth Mentioning
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Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://github.com/rabbitmq/rabbitmq-server/tree/v3.12.x/release-notes).
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### Core Server
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#### Bug Fixes
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* Quorum queue leader is now correctly observed in certain network failure scenarios.
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GitHub issues: [#9241](https://github.com/rabbitmq/rabbitmq-server/pull/9241), [#9227](https://github.com/rabbitmq/rabbitmq-server/pull/9227)
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* High consumer churn with reused consumer tag on quorum queues could result in some messages not being delivered
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after a period of time.
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This did not affect environments where consumer churn does not exist or where it does but consumer tags vary.
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GitHub issue: [#9158](https://github.com/rabbitmq/rabbitmq-server/pull/9158)
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* Three environment variables, `LOG_BASE`, `MNESIA_BASE`, `CONFIG_FILE`, were not picked up when set in
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`rabbitmq-env-conf.bat` on Windows.
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Gi9158issue: [#9307](https://github.com/rabbitmq/rabbitmq-server/pull/9307)
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* Avoids a potential exception when autoheal partition handling process was initiated.
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GitHub issue: [#9222](https://github.com/rabbitmq/rabbitmq-server/pull/9222)
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### MQTT Plugin
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#### Bug Fixes
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* If a socket write fails, close the connection quickly to avoid producing a lot of
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log noise.
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GitHub issue: [#9281](https://github.com/rabbitmq/rabbitmq-server/pull/9281)
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## Dependency Upgrades
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* `osiris` was upgraded to [`1.6.4`](https://github.com/rabbitmq/osiris/tags)
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## Dependency Upgrades
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None in this release.
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## Source Code Archives
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To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-3.12.5.tar.xz`
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instead of the source tarball produced by GitHub.
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