- On compatible systems, a mounter's Unmount implementation is changed to not return an error when the specified target can be detected as not a mount point. On Linux, the behavior of detecting a mount point depends on `umount` command is validated when the mounter is created. Additionally, mount point checks will be skipped in CleanupMountPoint/CleanupMountWithForce if the mounter's Unmount having the changed behavior of not returning error when target is not a mount point. ([#109676](htt...

				),
				prometheus.GaugeValue,
				float64(v),
				append(values, k)...)
			if err != nil {
				// Enable for debugging
				if serverDebugLog {
					bugLogIf(GlobalContext, fmt.Errorf("unable to validate prometheus metric (%w) %v+%v", err, values, metric.Histogram))
				}
			} else {
				out <- pmetric
			}
		}
		return
	}
	metricType := prometheus.GaugeValue

- Kubeadm: during join when a check is performed that a Node with the same name already exists in the cluster, make sure the NodeReady condition is properly validated ([#89602](https://github.com/kubernetes/kubernetes/pull/89602), [@kvaps](https://github.com/kvaps)) [SIG Cluster Lifecycle]

### SIG Storage

# Object classes for LDAP admin group.
ldap.admin.group.object.classes=groupOfNames
# Whether to sync password for LDAP admin.
ldap.admin.sync.password=true

# Whether to validate LDAP authentication.
ldap.auth.validation=true
# Maximum username length for LDAP.
ldap.max.username.length=-1
# Whether to ignore NetBIOS name in LDAP.
ldap.ignore.netbios.name=true

##  External Dependencies

- Default etcd server is unchanged at v3.2.24 since Kubernetes 1.12. ([#68318](https://github.com/kubernetes/kubernetes/pull/68318))
- The list of validated docker versions remain unchanged at 1.11.1, 1.12.1, 1.13.1, 17.03, 17.06, 17.09, 18.06 since Kubernetes 1.12. ([#68495](https://github.com/kubernetes/kubernetes/pull/68495))

[CRD Validation Expression Language](https://github.com/kubernetes/enhancements/blob/master/keps/sig-api-machinery/2876-crd-validation-expression-language/README.mdv) is promoted to beta, which makes it possible to declare how custom resources are validated using the [Common Expression Language (CEL)](https://github.com/google/cel-spec). Please see the [validation rules](https://kubernetes.io/docs/tasks/extend-kubernetes/custom-resources/custom-resource-definitions/#validation-rules) guide.

- Default etcd server and client have been updated to v3.3.10. ([#71615](https://github.com/kubernetes/kubernetes/pull/71615), [#70168](https://github.com/kubernetes/kubernetes/pull/70168))

- github.com/envoyproxy/go-control-plane: [49ff273 → 9239064](https://github.com/envoyproxy/go-control-plane/compare/49ff273...9239064)
- github.com/envoyproxy/protoc-gen-validate: [v0.1.0 → v0.10.1](https://github.com/envoyproxy/protoc-gen-validate/compare/v0.1.0...v0.10.1)
- github.com/golang/glog: [v1.0.0 → v1.1.0](https://github.com/golang/glog/compare/v1.0.0...v1.1.0)

network. Set `MINIO_BROWSER_REDIRECT_URL` to `https://console.minio.example.net` to ensure the browser receives a valid reachable URL. Similarly, if your TLS certificates do not have the IP SAN for the MinIO server host, the MinIO Console may fail to validate the connection to the server. Use the `MINIO_SERVER_URL` environment variable and specify the proxy-accessible hostname of the MinIO server to allow the Console to use the MinIO server API using the TLS certificate. For example: `export MINIO_SE...