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RabbitMQ `3.10.16` is a maintenance release in the `3.10.x` [release series](https://www.rabbitmq.com/versions.html).
This series [**reaches end of general support** on July 31st, 2023](https://rabbitmq.com/versions.html).
Please refer to the upgrade section from [v3.10.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.10.0)
if upgrading from a version prior to 3.10.0.
This release **requires Erlang 24.3** and supports 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
Erlang 23 and 24 versions older than 24.3 have reached [end of support](https://www.rabbitmq.com/which-erlang.html).
This release of RabbitMQ requires Erlang 24.3 or later versions. Nodes **will fail to start** on older Erlang releases.
Erlang 25 is recommended: it offers 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.
## Changes Worth Mentioning
Release notes can be found on GitHub at [rabbitmq-server/release-notes](https://github.com/rabbitmq/rabbitmq-server/tree/v3.10.x/release-notes).
### CLI Tools
#### Features
* `rabbitmqctl hash_password` is a new command that produces a [hashed value](https://www.rabbitmq.com/passwords.html#computing-password-hash) of the provided password.
Contributed by @SimonUnge (AWS).
GitHub issue: [#5957](https://github.com/rabbitmq/rabbitmq-server/issues/5957)
* `rabbitmq-diagnostics check_port_connectivity` now supports a new optional flag, `--address`,
that makes the check connect to a specific IP address instead of resolving node's hostname.
This is useful when target node is configured to only listen for connections on one interface
but not others:
``` shell
rabbitmq-diagnostics check_port_connectivity --address 127.0.0.1
rabbitmq-diagnostics check_port_connectivity --address "::1"
```
GitHub issue: [#6853](https://github.com/rabbitmq/rabbitmq-server/issues/6853)
### Management Plugin
#### Bug Fixes
* User filtering combined with pagination in the management UI did not work as expected.
GitHub issue: [#4908](https://github.com/rabbitmq/rabbitmq-server/issues/4908)
* Correctly format JSON field value in channel detail API response.
Contributed @Syuparn.
GitHub issue: [#2684](https://github.com/rabbitmq/rabbitmq-server/issues/2684)
### AMQP 1.0 Plugin
#### Bug Fixes
* AMQP 1.0 connection churn resulted in a memory leak.
GitHub issue: [#6969](https://github.com/rabbitmq/rabbitmq-server/issues/6969)
## Dependency Upgrades
None in this release.
## Source Code Archives
To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-3.10.16.tar.xz`
instead of the source tarball produced by GitHub.
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