Add release note for UTF-8 encoding fix in trace files

(cherry picked from commit be75522)

# Conflicts:
#	release-notes/4.3.0.md

Author: bas0N

release-notes/4.3.0.md

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+## RabbitMQ 4.3.0
+
+RabbitMQ `4.3.0` is a new feature release.
+
+
+## Breaking Changes and Compatibility Notes
+
+### Classic Queues v1 Storage (CQv1) is Removed
+
+This release removes the original classic queue storage implementation these days
+known as CQv1. A 2nd generation implementation called CQv2 has been adopted
+as the default starting with `4.2.0`.
+
+This means that attemptes to declare a queue using the following [optional queue arguments](https://www.rabbitmq.com/docs/queues#optional-arguments) will fail:
+
+ * `x-queue-mode` set to any value
+ * `x-queue-version` set to `1`
+
+Existing classic queues upgraded to CQv2 during an earlier upgrade to `4.2.x` will continue
+operating as usual.
+
+
+## Release Highlights
+
+TBD
+
+
+## Upgrading to 4.3.0
+
+### Documentation guides on upgrades
+
+See the [Upgrading guide](https://www.rabbitmq.com/docs/upgrade) for documentation on upgrades and [GitHub releases](https://github.com/rabbitmq/rabbitmq-server/releases)
+for release notes of individual releases.
+
+This release series supports upgrades from `4.2.x`. Upgrades from earlier series are **not** supported:
+users must upgrade to the latest available `4.2.x` patch release before upgrading to `4.3.0`.
+
+
+### New Required Feature Flags
+
+All feature flags introduced in `4.2.0` and earlier are required, including the following:
+* `rabbitmq_4.2.0`
+* `rabbitmq_4.1.0`
+* `rabbitmq_4.0.0`
+* `khepri_db`
+* `quorum_queue_non_voters`
+* `message_containers_deaths_v2`
+
+Enable all required feature flags before upgrading to `4.3.0`.
+
+If your RabbitMQ cluster had plugin `rabbitmq_amqp1_0` enabled in RabbitMQ `3.13.x` (and your cluster still serves AMQP 1.0 client connections in `4.x`), your cluster should do at least one rolling update **after** enabling feature flag `rabbitmq_4.0.0` but **before** upgrading to `4.3.0`.
+
+### Deprecated Features
+
+In `4.3.0` the deprecation phase of the following features advanced from `permitted_by_default` to `denied_by_default`:
+* `amqp_filter_set_bug`
+
+### Mixed version cluster compatibility
+
+RabbitMQ 4.3.0 nodes can run alongside `4.2.x`.
+
+Mixed version clusters are a mechanism that allows rolling upgrade and are not meant to be run for extended
+periods of time (no more than a few hours).
+
+### Recommended Post-upgrade Procedures
+
+This version does not require any additional post-upgrade procedures
+compared to other versions.
+
+
+## Changes Worth Mentioning
+
+### Core Server
+
+#### Bug Fixes
+
+ * Quorum queue at-most-once dead lettering for the overflow behaviour `drop-head` now happens in the correct order.
+
+   GitHub issue: [#14926](https://github.com/rabbitmq/rabbitmq-server/pull/14926)
+
+ * Feature flag state in the registry and on disk were not consistent for a period of time during node boot.
+
+  GitHub issue: [#14943](https://github.com/rabbitmq/rabbitmq-server/pull/14943)
+
+
+### Stream Plugin
+
+#### Bug Fixes
+
+ * `stream.read_ahead` is a new setting that controls how much data is prefetched from disk
+   for stream reads (consumption).
+
+   GitHub issue: [#14948/](https://github.com/rabbitmq/rabbitmq-server/pull/14948)
+
+ * Stream deletion is now more resilient and can handle certain mid-deletion failure scenarios.
+
+   GitHub issue: [#14852](https://github.com/rabbitmq/rabbitmq-server/issues/14852)
+
+
+### Grafana Dashboards
+
+#### Enhancements
+
+ * The [dashboards](https://grafana.com/orgs/rabbitmq) were updated for the most recent RabbitMQ release series.
+
+
+### Management Plugin
+
+#### Enhancements
+
+ * `GET /api/queues/{vhost}` requests no longer perform unnecessary virtual host permission checks
+   and log less (at `debug` level) as a result.
+
+   GitHub issue: [#14923](https://github.com/rabbitmq/rabbitmq-server/discussions/14923)
+
+
+### Tracing Plugin
+
+#### Bug Fixes
+
+ * Trace file downloads now correctly display Cyrillic and other Unicode characters in browsers
+   by setting `charset=utf-8` in the `Content-Type` header.
+
+   GitHub issue: [#13952](https://github.com/rabbitmq/rabbitmq-server/issues/13952)
+
+
+### Shovel Plugin
+
+#### Bug Fixes
+
+ * Improved target node resource alarm handling for AMQP 1.0 and local shovels.
+
+   GitHub issue: [#14886](https://github.com/rabbitmq/rabbitmq-server/pull/14886)
+
+ * Local shovels could run into an exception that would cause a shovel restart.
+
+   GitHub issue: [#14872](https://github.com/rabbitmq/rabbitmq-server/pull/14872)
+
+ * AMQP 1.0 shovels ignored the `sasl` URI parameter.
+
+   GitHub issue: [#14867](https://github.com/rabbitmq/rabbitmq-server/pull/14867)
+
+
+### OAuth 2 Plugin
+
+#### Bug Fixes
+
+ * A usability improvement allows the plugin to automatically load the trusted system x.509 (TLS) certificates.
+
+   GitHub issue: [#14927](https://github.com/rabbitmq/rabbitmq-server/pull/14927)
+
+
+### LDAP Plugin
+
+#### Enhancements
+
+ * LDAP queries, including multi-line ones, now can be specified in `rabbitmq.conf`.
+
+   GitHub issue: [#14868](https://github.com/rabbitmq/rabbitmq-server/pull/14868)
+
+#### Bug Fixes
+
+ * A usability improvement allows the plugin to automatically load the trusted system certificates
+   when the user only enables TLS for the LDAP client but does not configure any other settings.
+
+   GitHub issue: [#14937](https://github.com/rabbitmq/rabbitmq-server/pull/14937)
+
+
+### HTTP Auth Backend Plugin
+
+#### Enhancements
+
+ * The HTTP Auth Backend can now optionally provide a custom authorization denial reason to AMQP clients.
+
+   To opt in, return `deny <Reason>` (instead of only `deny`) in the HTTP response body of your HTTP auth backend and set the following in your `rabbitmq.conf` file:
+
+```ini
+auth_http.authorization_failure_disclosure = true
+```
+
+   See the [README](https://github.com/rabbitmq/rabbitmq-server/blob/main/deps/rabbitmq_auth_backend_http/README.md) for more information.
+
+   GitHub issue: [#14641](https://github.com/rabbitmq/rabbitmq-server/pull/14641)
+
+
+### Dependency Changes
+
+ * `cuttlefish` was upgraded to [`3.6.0`](https://github.com/kyorai/cuttlefish/releases)
+
+## Source Code Archives
+
+To obtain source code of the entire distribution, please download the archive named `rabbitmq-server-4.3.0.tar.xz`
+instead of the source tarball produced by GitHub.