Update the Release Notes 1.5

Author: GitHub Actions

modules/release-notes/ref-release-notes-breaking-changes.adoc

@@ -23,9 +23,9 @@ The `scopes` parameter is now mandatory for the `gitlab:projectDeployToken:creat
 * link:https://issues.redhat.com/browse/RHIDP-5812[RHIDP-5812]
 
 [id="breaking-change-rhidp-5568"]
-== The `dynamicPlugins.cache.volumeClaimSpec` field is removed from the Helm Chart, dynamic plugin storage is now ephemeral
+== The `dynamicPlugins.cache.volumeClaimSpec` field is removed from the Helm Chart, dynamic plugin storage is now ephemeral by default
 
-The `dynamicPlugins.cache.volumeClaimSpec` field has been removed from `values.yaml`, making all dynamic plugin storage ephemeral by default. Instead of the Helm chart managing persistent volume claim (PVC) creation, you must now manually configure ephemeral volume claims under `extraVolumes`.
+The `dynamicPlugins.cache.volumeClaimSpec` field has been removed from `values.yaml`, making dynamic plugin storage ephemeral by default using `emptyDir: {}`. Persistent plugin caching remains fully supported, and you must now manually configure `PersistentVolumeClaim` and mount it using the `extraVolumes` and `extraVolumeMounts` fields in the Helm chart values.
 
 This change also resolves issues with running multi-replica {product-very-short} deployments, as using a PVC for the Dynamic Plugins cache previously led to potential write conflicts.