diff --git a/pkg/features/kube_features.go b/pkg/features/kube_features.go
index 43ee081674c..b372a09cc71 100644
--- a/pkg/features/kube_features.go
+++ b/pkg/features/kube_features.go
@@ -17,6 +17,7 @@ limitations under the License.
 package features
 
 import (
+	apiextensionsfeatures "k8s.io/apiextensions-apiserver/pkg/features"
 	"k8s.io/apimachinery/pkg/util/runtime"
 	genericfeatures "k8s.io/apiserver/pkg/features"
 	utilfeature "k8s.io/apiserver/pkg/util/feature"
@@ -1182,6 +1183,11 @@ var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureS
 
 	genericfeatures.ServerSideFieldValidation: {Default: true, PreRelease: featuregate.GA, LockToDefault: true}, // remove in 1.29
 
+	// inherited features from apiextensions-apiserver, relisted here to get a conflict if it is changed
+	// unintentionally on either side:
+
+	apiextensionsfeatures.CRDValidationRatcheting: {Default: false, PreRelease: featuregate.Alpha},
+
 	// features that enable backwards compatibility but are scheduled to be removed
 	// ...
 	HPAScaleToZero: {Default: false, PreRelease: featuregate.Alpha},
diff --git a/staging/src/k8s.io/apiextensions-apiserver/pkg/features/kube_features.go b/staging/src/k8s.io/apiextensions-apiserver/pkg/features/kube_features.go
index a5932281367..1844ed8d1eb 100644
--- a/staging/src/k8s.io/apiextensions-apiserver/pkg/features/kube_features.go
+++ b/staging/src/k8s.io/apiextensions-apiserver/pkg/features/kube_features.go
@@ -22,11 +22,18 @@ import (
 )
 
 const (
-// Every feature gate should add method here following this template:
-//
-// // owner: @username
-// // alpha: v1.4
-// MyFeature() bool
+	// Every feature gate should add method here following this template:
+	//
+	// // owner: @username
+	// // alpha: v1.4
+	// MyFeature() bool
+
+	// owner: @alexzielenski
+	// alpha: v1.28
+	//
+	// Ignores errors raised on unchanged fields of Custom Resources
+	// across UPDATE/PATCH requests.
+	CRDValidationRatcheting featuregate.Feature = "CRDValidationRatcheting"
 )
 
 func init() {
@@ -36,4 +43,6 @@ func init() {
 // defaultKubernetesFeatureGates consists of all known Kubernetes-specific feature keys.
 // To add a new feature, define a key for it above and add it here. The features will be
 // available throughout Kubernetes binaries.
-var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureSpec{}
+var defaultKubernetesFeatureGates = map[featuregate.Feature]featuregate.FeatureSpec{
+	CRDValidationRatcheting: {Default: false, PreRelease: featuregate.Alpha},
+}