- Switched kubectl explain to use OpenAPIV3 information published by the server. OpenAPIV2 backend can  still be used with the `--output plaintext-openapiv2` argument ([#116390](https://github.com/kubernetes/kubernetes/pull/116390), [@alexzielenski](https://github.com/alexzielenski)) [SIG API Machinery, CLI and Testing]

					costErrorMsg := fmt.Sprintf("contributed to estimated rule cost total exceeding cost limit for entire OpenAPIv3 schema")
					allErrs = append(allErrs, field.Forbidden(expensive.Path, costErrorMsg))
				}

				costErrorMsg := getCostErrorMessage("x-kubernetes-validations estimated rule cost total for entire OpenAPIv3 schema", celContext.TotalCost.Total, StaticEstimatedCRDCostLimit)

	if s.openAPIV3Config == nil {
		// SSA is GA and requires OpenAPI config to be set
		// to create models.
		return nil, errors.New("OpenAPIV3 config must not be nil")
	}
	pathsToIgnore := openapiutil.NewTrie(s.openAPIV3Config.IgnorePrefixes)
	resourceNames := make([]string, 0)
	for _, apiGroupInfo := range apiGroupInfos {

				// total limit is exceeded
				forbidden("spec.validation.openAPIV3Schema"),
			},
		},
		{
			name: "skip CEL expression validation when OpenAPIv3 schema is an invalid structural schema",
			opts: validationOptions{requireStructuralSchema: true},
			input: apiextensions.CustomResourceValidation{
				OpenAPIV3Schema: &apiextensions.JSONSchemaProps{

	"k8s.io/apiserver/pkg/warning"
	featuregatetesting "k8s.io/component-base/featuregate/testing"
)

// TestValidationExpressions tests CEL integration with custom resource values and OpenAPIv3.
func TestValidationExpressions(t *testing.T) {
	tests := []struct {
		name          string
		schema        *schema.Structural
		oldSchema     *schema.Structural
		obj           interface{}

- Removed `GA`ed feature gate `TopologyManager`. ([#121252](https://github.com/kubernetes/kubernetes/pull/121252), [@tukwila](https://github.com/tukwila))
- Removed `GA`ed feature gates `OpenAPIV3`. ([#121255](https://github.com/kubernetes/kubernetes/pull/121255), [@tukwila](https://github.com/tukwila))