Automated changelog update [skip ci]

CHANGELOG.md

@@ -43,6 +43,7 @@ The following sections list the changes for unreleased.
 ## Summary
 
 * Bugfix - Fix search by containing special characters: [#8050](https://github.com/owncloud/ocis/pull/8050)
+* Enhancement - Add RED metrics to the metrics endpoint: [#7994](https://github.com/owncloud/ocis/pull/7994)
 
 ## Details
 
@@ -56,6 +57,24 @@ The following sections list the changes for unreleased.
    https://github.com/owncloud/ocis/pull/8050
    https://github.com/owncloud/ocis/pull/8035
 
+* Enhancement - Add RED metrics to the metrics endpoint: [#7994](https://github.com/owncloud/ocis/pull/7994)
+
+   We added three new metrics to the metrics endpoint to support the RED method for
+   monitoring microservices.
+
+   - Request Rate: The number of requests per second. The total count of requests
+   is available under `ocis_proxy_requests_total`. - Error Rate: The number of
+   failed requests per second. The total count of failed requests is available
+   under `ocis_proxy_errors_total`. - Duration: The amount of time each request
+   takes. The duration of all requests is available under
+   `ocis_proxy_request_duration_seconds`. This is a histogram metric, so it also
+   provides information about the distribution of request durations.
+
+   The metrics are available under the following paths: `PROXY_DEBUG_ADDR/metrics`
+   in a prometheus compatible format and maybe secured by `PROXY_DEBUG_TOKEN`.
+
+   https://github.com/owncloud/ocis/pull/7994
+
 # Changelog for [5.0.0-beta.2] (2023-12-20)
 
 The following sections list the changes for 5.0.0-beta.2.