OBSDOCS-1371: Add a release note about change of parameter name from 'delivery' to 'deliveryMode'

Author: max-cx

observability/logging/logging-6.0/log6x-release-notes.adoc

@@ -66,9 +66,26 @@ In order to continue to use Elasticsearch and Kibana managed by the elasticsearc
 
 * This enhancement updates the must-gather functionality to only capture information for inspecting Logging 6.0 components, including Vector deployments from ClusterLogForwarder.observability.openshift.io resources and the Red Hat managed LokiStack. (link:https://issues.redhat.com/browse/LOG-5949[LOG-5949])
 
-
 * This enhancement improves Azure storage secret validation by providing early warnings for specific error conditions. (link:https://issues.redhat.com/browse/LOG-4571[LOG-4571])
 
+* This enhancement updates the `ClusterLogForwarder` API to follow the Kubernetes standards. (link:https://issues.redhat.com/browse/LOG-5977[LOG-5977])
++
+.Example of a new configuration in the `ClusterLogForwarder` custom resource for the updated API
+[source,yaml]
+----
+apiVersion: observability.openshift.io/v1
+kind: ClusterLogForwarder
+metadata:
+  name: <name>
+spec:
+  outputs:
+  - name: <output_name>
+    type: <output_type>
+    <output_type>:
+      tuning:
+         deliveryMode: AtMostOnce
+----
+
 [id="log6x-release-notes-6-0-0-technology-preview-features"]
 == Technology Preview features