diff --git a/release_notes/ocp-4-12-release-notes.adoc b/release_notes/ocp-4-12-release-notes.adoc
index 9bffddb13f55..c29f72dfad40 100644
--- a/release_notes/ocp-4-12-release-notes.adoc
+++ b/release_notes/ocp-4-12-release-notes.adoc
@@ -705,6 +705,11 @@ In {product-title} 4.12, the External DNS Operator modifies the format of the Ex
 
 The upstream version of `ExternalDNS` for {product-title} 4.12 is v0.13.1.
 
+[id="ocp-4-12-ingressclassname-ingressClassName-required_{context}"]
+==== The ingressClassName field is required for each ingress object
+
+Beginning with {product-title} 4.12, you must specify a class name in the `ingressClassName` field for each ingress object to ensure proper routing and functionality.
+
 [id="ocp-4-12-nw-metrics-telemetry_{context}"]
 ==== Capturing metrics and telemetry associated with the use of routes and shards