Merge pull request #6102 from rabbitmq/mergify/bp/v3.10.x/pr-6101

3.10.9 release notes (backport #6100) (backport #6101)

Author: michaelklishin

release-notes/3.10.9.md

@@ -0,0 +1,98 @@
+RabbitMQ `3.10.9` is a maintenance release in the `3.10.x` [release series](https://www.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 24.2 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 support has reached its [end of support](https://www.rabbitmq.com/which-erlang.html).
+
+This release of RabbitMQ requires Erlang 24.2 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).
+
+### Core Server
+
+#### Bug Fixes
+
+  * A rolling upgrade on Kubernetes could hang.
+
+    GitHub issue: [#6034](https://github.com/rabbitmq/rabbitmq-server/issues/6034)
+
+  * In mixed 3.11/3.10 clusters, channels that performed operations on classic queues could
+    run into an exception.
+
+    GitHub issue: [#5931](https://github.com/rabbitmq/rabbitmq-server/issues/5931)
+
+  * A quorum queue consumer was cancelled and immediately re-registered while some
+    deliveries were in flight could result in a channel exception.
+
+    GitHub issue: [#5927](https://github.com/rabbitmq/rabbitmq-server/issues/5927)
+
+  * More strings from external sources are converted to Unicode-aware representation
+    internally, in log messages, CLI tools output and UI, and so on.
+
+    GitHub issues: [#5551](https://github.com/rabbitmq/rabbitmq-server/pull/5551)
+
+  * During plugin activation on a running node, plugins with dependencies were added to runtime code path
+    in an order that could break if a plugin had hard transitive dependencies (that must be loaded first).
+
+    Contributed by @gomoripeti.
+
+    GitHub issue: [#6019](https://github.com/rabbitmq/rabbitmq-server/pull/6019)
+
+#### Enhancements
+
+ * Support for paths with non-ASCII (Unicode) characters in paths.
+
+ * `rabbitmq-diagnostics observer` now includes a new tab that provides access to internal classic queue
+   metrics.
+
+   GitHub issue: [#6074](https://github.com/rabbitmq/rabbitmq-server/pull/6074)
+
+ * More free disk space monitor resilience improvements.
+
+   GitHub issue: [#5831](https://github.com/rabbitmq/rabbitmq-server/pull/5831)
+
+
+### AMQP 1.0 Plugin
+
+#### Bug Fixes
+
+ * `rabbitmqctl list_amqp10_connections` were not listing connections correctly.
+
+   GitHub issue: [#4238](https://github.com/rabbitmq/rabbitmq-server/issues/4238)
+
+
+### Shovel Management Plugin
+
+#### Bug Fixes
+
+ * Shovel management HTTP API endpoint could run into an exception.
+
+   Contributed by @gomoripeti.
+
+   GitHub issue: [#5892](https://github.com/rabbitmq/rabbitmq-server/pull/5892)
+
+
+
+## Dependency Upgrades
+
+ * `cuttlefish` upgraded to [`3.1.0`](https://github.com/Kyorai/cuttlefish/releases)
+
+
+## Source Code Archives
+
+To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-3.10.9.tar.xz`
+instead of the source tarball produced by GitHub.