diff --git a/pkg/registry/extensions/daemonset/BUILD b/pkg/registry/extensions/daemonset/BUILD
index 50b712d9861..20927a9f70b 100644
--- a/pkg/registry/extensions/daemonset/BUILD
+++ b/pkg/registry/extensions/daemonset/BUILD
@@ -18,8 +18,6 @@ go_library(
         "//pkg/api/pod:go_default_library",
         "//pkg/apis/extensions:go_default_library",
         "//pkg/apis/extensions/validation:go_default_library",
-        "//vendor/k8s.io/api/apps/v1:go_default_library",
-        "//vendor/k8s.io/api/apps/v1beta2:go_default_library",
         "//vendor/k8s.io/api/extensions/v1beta1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/api/equality:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/api/validation:go_default_library",
diff --git a/pkg/registry/extensions/daemonset/strategy.go b/pkg/registry/extensions/daemonset/strategy.go
index a5daeb2d49a..759324fff79 100644
--- a/pkg/registry/extensions/daemonset/strategy.go
+++ b/pkg/registry/extensions/daemonset/strategy.go
@@ -17,10 +17,6 @@ limitations under the License.
 package daemonset
 
 import (
-	"fmt"
-
-	appsv1 "k8s.io/api/apps/v1"
-	appsv1beta2 "k8s.io/api/apps/v1beta2"
 	extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	apivalidation "k8s.io/apimachinery/pkg/api/validation"
@@ -136,11 +132,9 @@ func (daemonSetStrategy) ValidateUpdate(ctx genericapirequest.Context, obj, old
 		switch groupVersion {
 		case extensionsv1beta1.SchemeGroupVersion:
 			// no-op for compatibility
-		case appsv1beta2.SchemeGroupVersion, appsv1.SchemeGroupVersion:
+		default:
 			// disallow mutation of selector
 			allErrs = append(allErrs, apivalidation.ValidateImmutableField(newDaemonSet.Spec.Selector, oldDaemonSet.Spec.Selector, field.NewPath("spec").Child("selector"))...)
-		default:
-			panic(fmt.Sprintf("unexpected group/version: %v", groupVersion))
 		}
 	}
 
diff --git a/pkg/registry/extensions/deployment/BUILD b/pkg/registry/extensions/deployment/BUILD
index f547fc9a54c..b6b327f2697 100644
--- a/pkg/registry/extensions/deployment/BUILD
+++ b/pkg/registry/extensions/deployment/BUILD
@@ -19,9 +19,7 @@ go_library(
         "//pkg/api/pod:go_default_library",
         "//pkg/apis/extensions:go_default_library",
         "//pkg/apis/extensions/validation:go_default_library",
-        "//vendor/k8s.io/api/apps/v1:go_default_library",
         "//vendor/k8s.io/api/apps/v1beta1:go_default_library",
-        "//vendor/k8s.io/api/apps/v1beta2:go_default_library",
         "//vendor/k8s.io/api/extensions/v1beta1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/api/equality:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/api/validation:go_default_library",
diff --git a/pkg/registry/extensions/deployment/strategy.go b/pkg/registry/extensions/deployment/strategy.go
index 5cc8c79d6e4..6a2a437d3e3 100644
--- a/pkg/registry/extensions/deployment/strategy.go
+++ b/pkg/registry/extensions/deployment/strategy.go
@@ -17,11 +17,7 @@ limitations under the License.
 package deployment
 
 import (
-	"fmt"
-
-	appsv1 "k8s.io/api/apps/v1"
 	appsv1beta1 "k8s.io/api/apps/v1beta1"
-	appsv1beta2 "k8s.io/api/apps/v1beta2"
 	extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	apivalidation "k8s.io/apimachinery/pkg/api/validation"
@@ -114,15 +110,11 @@ func (deploymentStrategy) ValidateUpdate(ctx genericapirequest.Context, obj, old
 	if requestInfo, found := genericapirequest.RequestInfoFrom(ctx); found {
 		groupVersion := schema.GroupVersion{Group: requestInfo.APIGroup, Version: requestInfo.APIVersion}
 		switch groupVersion {
-		case appsv1beta1.SchemeGroupVersion:
+		case appsv1beta1.SchemeGroupVersion, extensionsv1beta1.SchemeGroupVersion:
 			// no-op for compatibility
-		case extensionsv1beta1.SchemeGroupVersion:
-			// no-op for compatibility
-		case appsv1beta2.SchemeGroupVersion, appsv1.SchemeGroupVersion:
+		default:
 			// disallow mutation of selector
 			allErrs = append(allErrs, apivalidation.ValidateImmutableField(newDeployment.Spec.Selector, oldDeployment.Spec.Selector, field.NewPath("spec").Child("selector"))...)
-		default:
-			panic(fmt.Sprintf("unexpected group/version: %v", groupVersion))
 		}
 	}
 
diff --git a/pkg/registry/extensions/replicaset/BUILD b/pkg/registry/extensions/replicaset/BUILD
index bd01c4487be..073ea54ec40 100644
--- a/pkg/registry/extensions/replicaset/BUILD
+++ b/pkg/registry/extensions/replicaset/BUILD
@@ -19,8 +19,6 @@ go_library(
         "//pkg/api/pod:go_default_library",
         "//pkg/apis/extensions:go_default_library",
         "//pkg/apis/extensions/validation:go_default_library",
-        "//vendor/k8s.io/api/apps/v1:go_default_library",
-        "//vendor/k8s.io/api/apps/v1beta2:go_default_library",
         "//vendor/k8s.io/api/extensions/v1beta1:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/api/equality:go_default_library",
         "//vendor/k8s.io/apimachinery/pkg/api/validation:go_default_library",
diff --git a/pkg/registry/extensions/replicaset/strategy.go b/pkg/registry/extensions/replicaset/strategy.go
index 10f71c138d1..03ac3266307 100644
--- a/pkg/registry/extensions/replicaset/strategy.go
+++ b/pkg/registry/extensions/replicaset/strategy.go
@@ -22,8 +22,6 @@ import (
 	"fmt"
 	"strconv"
 
-	appsv1 "k8s.io/api/apps/v1"
-	appsv1beta2 "k8s.io/api/apps/v1beta2"
 	extensionsv1beta1 "k8s.io/api/extensions/v1beta1"
 	apiequality "k8s.io/apimachinery/pkg/api/equality"
 	apivalidation "k8s.io/apimachinery/pkg/api/validation"
@@ -128,11 +126,9 @@ func (rsStrategy) ValidateUpdate(ctx genericapirequest.Context, obj, old runtime
 		switch groupVersion {
 		case extensionsv1beta1.SchemeGroupVersion:
 			// no-op for compatibility
-		case appsv1beta2.SchemeGroupVersion, appsv1.SchemeGroupVersion:
+		default:
 			// disallow mutation of selector
 			allErrs = append(allErrs, apivalidation.ValidateImmutableField(newReplicaSet.Spec.Selector, oldReplicaSet.Spec.Selector, field.NewPath("spec").Child("selector"))...)
-		default:
-			panic(fmt.Sprintf("unexpected group/version: %v", groupVersion))
 		}
 	}