Merge pull request #5184 from rabbitmq/mergify/bp/v3.9.x/pr-5182

3.8.35 release notes (backport #5182)

Author: michaelklishin

release-notes/3.8.35.md

@@ -0,0 +1,65 @@
+RabbitMQ `3.8.35` is a maintenance release.
+All users are recommended to upgrade to this release.
+
+### Obtaining Packages
+
+RabbitMQ releases are distributed via [GitHub](https://github.com/rabbitmq/rabbitmq-server/releases), [Cloudsmith](https://cloudsmith.io/~rabbitmq/repos/),
+and [PackageCloud](https://packagecloud.io/rabbitmq).
+
+### Erlang/OTP Compatibility Notes
+
+This release [requires Erlang 23.2](https://www.rabbitmq.com/which-erlang.html) and [supports Erlang 24](https://blog.rabbitmq.com/posts/2021/03/erlang-24-support-roadmap/).
+
+[Provisioning Latest Erlang Releases](https://www.rabbitmq.com/which-erlang.html#erlang-repositories) explains
+what package repositories and tools can be used to provision modern Erlang versions.
+
+
+## Upgrade and Compatibility Notes
+
+See the [Upgrading guide](https://www.rabbitmq.com/upgrade.html) for general documentation on upgrades and
+[RabbitMQ change log](https://www.rabbitmq.com/changelog.html) for release notes of other releases.
+
+If upgrading from a `3.7.x` release, see [3.8.0 release notes](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.8.0)
+upgrade and compatibility notes first.
+
+If upgrading from a `3.6.x` or older [release series](https://www.rabbitmq.com/versions.html), first upgrade
+to [`3.7.27`](https://github.com/rabbitmq/rabbitmq-server/releases/tag/v3.7.27) and then to this version.
+
+
+## Getting Help
+
+Any questions about this release, upgrades or RabbitMQ in general are welcome on the [RabbitMQ mailing list](https://groups.google.com/forum/#!forum/rabbitmq-users)
+and [RabbitMQ community Slack](https://rabbitmq-slack.herokuapp.com/).
+
+
+## Changes Worth Mentioning
+
+### Consul Peer Discovery Plugin
+
+#### Enhancements
+
+ * Consul peer discovery now supports client-side TLS options, much like its Kubernetes and etcd peers.
+
+   ``` ini
+   cluster_formation.consul.scheme = https
+   # this assumes that Consul uses port 8501 for HTTPS clients
+   cluster_formation.consul.port = 8501
+
+   cluster_formation.consul.ssl_options.cacertfile = /path/to/consul/generated/ca_certificate.pem
+   cluster_formation.consul.ssl_options.certfile = /path/to/client/certificate.pem
+   cluster_formation.consul.ssl_options.keyfile = /path/to/client/client_key.pem
+   ```
+
+   GitHub issue: [#5116](https://github.com/rabbitmq/rabbitmq-server/issues/5116)
+
+
+## Dependency Upgrades
+
+None in this release.
+
+
+## Source Code Archives
+
+To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-3.8.35.tar.xz`
+instead of the source tarball produced by GitHub.
+