diff --git a/docs/releases/1.22-NOTES.md b/docs/releases/1.22-NOTES.md
index 63c1d085a0d2a..2eb9a4eb757fc 100644
--- a/docs/releases/1.22-NOTES.md
+++ b/docs/releases/1.22-NOTES.md
@@ -163,6 +163,9 @@ For file assets, it means adding an explicit path as shown below:
   The previous behavior of using self-signed certs may be restored by setting `kubeControllerManager.tlsCertFile` and/or
   `kubeScheduler.tlsCertFile` to `""` in the cluster spec.
 
+* kOps has changed the CN of the Kubernetes general CA from `kubernetes` to `kubernetes-ca`.
+  This change is backward-compatible, but if you were relying on the CN for some code, you will need to ensure it is compatible with both the old name and the new name as you may have older clusters with the old CN and newer clusters with the new CN.
+
 * Cilium now supports the wireguard protocol for transparent encryption.