2023-09-22 01:07:07 +08:00
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RabbitMQ `3.12.6` 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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2023-09-22 03:38:00 +08:00
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This release requires Erlang 25 and supports Erlang versions up to `26.1.x`.
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2023-09-22 01:07:07 +08:00
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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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* `3.12.5` unintentionally shipped with a `seshat` version older than `0.6.1`. This can potentially
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result in an incompatibility with the stream subsystem.
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GitHub issue: [#9499](https://github.com/rabbitmq/rabbitmq-server/pull/9499)
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#### Enhancements
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* Improved forward compatibility of classic queues with 3.13.
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GitHub issue: [#9508](https://github.com/rabbitmq/rabbitmq-server/pull/9508)
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## Dependency Upgrades
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* `seshat` was upgraded to [`0.6.1`](https://github.com/rabbitmq/seshat/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-3.12.6.tar.xz`
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instead of the source tarball produced by GitHub.
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