// If the key is empty, operator must be Exists; this combination means to match all values and all keys.
  // +optional
  optional string key = 1;

  // Operator represents a key's relationship to the value.
  // Valid operators are Exists and Equal. Defaults to Equal.
  // Exists is equivalent to wildcard for value, so that a pod can

  - A namespaced object with an ownerReference referencing a uid of a namespaced kind which does not exist in the same namespace is now consistently treated as though that owner does not exist, and the child object is deleted.

a safe location. `kubadm certs renew` will renew the certificate in `super-admin.conf` to one year if the file exists; if it does not exist a "MISSING" note will be printed. `kubeadm upgrade apply` for this release will migrate this particular node to the two file setup. Subsequent kubeadm releases will continue to optionally renew the certificate in `super-admin.conf` if the file exists on disk and if renew on upgrade is not disabled. `kubeadm join --control-plane` will now generate only an `admin.conf`...

- Fixed a bug that prevents a PersistentVolume that has a PersistentVolumeClaim UID which doesn't exist in local cache but exists in etcd from being updated to the Released phase. ([#105211](https://github.com/kubernetes/kubernetes/pull/105211), [@xiaopingrubyist](https://github.com/xiaopingrubyist))

    * Add validation for upstreamNameserver port.
    * Update go version to 1.9.3.
* CRI: define the mount behavior when host path does not exist: runtime should report error if the host path doesn't exist ([#61460](https://github.com/kubernetes/kubernetes/pull/61460), [@feiskyer](https://github.com/feiskyer))

- The `kubectl patch` command no longer exits with exit code 1 when a redundant patch results in a no-op ([#66725](https://github.com/kubernetes/kubernetes/pull/66725), [@juanvallejo](https://github.com/juanvallejo))

* fix azure disk mounter issue ([#52260](https://github.com/kubernetes/kubernetes/pull/52260), [@andyzhangx](https://github.com/andyzhangx))
* GCE: Fix issue deleting internal load balancers when the firewall resource may not exist. ([#53450](https://github.com/kubernetes/kubernetes/pull/53450), [@nicksardo](https://github.com/nicksardo))

* GCE: Fix issue deleting internal load balancers when the firewall resource may not exist. ([#53450](https://github.com/kubernetes/kubernetes/pull/53450), [@nicksardo](https://github.com/nicksardo))

*   Fixed issue deleting internal load balancers when the firewall resource may not exist. ([#53450](https://github.com/kubernetes/kubernetes/pull/53450),[ @nicksardo](https://github.com/nicksardo))

### **Instrumentation**

#### **Audit**

* Add CSI Migration Shim for VerifyVolumesAreAttached and BulkVolumeVerify ([#80443](https://github.com/kubernetes/kubernetes/pull/80443), [@davidz627](https://github.com/davidz627))