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RabbitMQ `3.11.10` 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.
[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
* Tag changes could result in a loop of internal events in certain plugins.
GitHub issue: [#7280](https://github.com/rabbitmq/rabbitmq-server/pull/7280)
#### Enhancements
* Key classic mirrored queue (a deprecated feature) settings now can be overridden with
operator policies.
Contributed by @SimonUnge (AWS).
GitHub issue: [#7323](https://github.com/rabbitmq/rabbitmq-server/issues/7323)
### Management Plugin
#### Bug Fixes
* Individual virtual host page failed to render.
GitHub issue: [#7301](https://github.com/rabbitmq/rabbitmq-server/issues/7301)
* Individual exchange page failed to render.
GitHub issue: [#7369](https://github.com/rabbitmq/rabbitmq-server/issues/7369)
### AMQP 1.0 Plugin
#### Enhancements
* The plugin now supports authentication with JWT tokens (the OAuth 2 authentication backend).
GitHub issues: [#6931](https://github.com/rabbitmq/rabbitmq-server/pull/6931), [#6909](https://github.com/rabbitmq/rabbitmq-server/issues/6909)
## OAuth 2 Plugin
### Bug Fixes
* The `auth_oauth2.preferred_username_claims` key in `rabbitmq.conf` now accepts a list of values.
GitHub issue: [#7458](https://github.com/rabbitmq/rabbitmq-server/pull/7458)
## Dependency Upgrades
* `ra` was upgraded [from `2.4.6` to `2.4.9`](https://github.com/rabbitmq/ra/releases)
## Source Code Archives
To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-3.11.10.tar.xz`
instead of the source tarball produced by GitHub.
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