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3.11.17 release notes #8313

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66 changes: 66 additions & 0 deletions release-notes/3.11.17.md
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RabbitMQ `3.11.17` is a maintenance release in the `3.11.x` [release series](https://www.rabbitmq.com/versions.html).

Please refer to the upgrade section from [v3.11.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.11.0)
if upgrading from a version prior to 3.11.0.

This release requires Erlang 25 and supports Erlang versions up to `25.3.x`.
[RabbitMQ and Erlang/OTP Compatibility Matrix](https://www.rabbitmq.com/which-erlang.html) 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](https://blog.rabbitmq.com/posts/2022/05/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](https://github.com/rabbitmq/rabbitmq-server/tree/v3.11.x/release-notes).

### Core Server

#### Bug Fixes

* Fixed two quorum queue federation issues.

GitHub issue: [#8282](https://github.com/rabbitmq/rabbitmq-server/pull/8282)

#### Enhancements

* Reduce CPU footprint of quorum queue metric emission in clusters with a lot of quorum queues.

Contributed by @SimonUnge (AWS).

GitHub issue: [#7389](https://github.com/rabbitmq/rabbitmq-server/issues/7389)


### Debian Package

#### Bug Fixes

* Make-based source package builds were failing in an offline environment.

GitHub issue: [#7869](https://github.com/rabbitmq/rabbitmq-server/issues/7869)


### RPM Package

#### Bug Fixes

* Make-based source package builds were failing in an offline environment.

GitHub issue: [#7869](https://github.com/rabbitmq/rabbitmq-server/issues/7869)


## Dependency Upgrades

None in this release.


## Source Code Archives

To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-3.11.17.tar.xz`
instead of the source tarball produced by GitHub.