from the watch cache by default, as in <`1.27` (disabling the change in PR 115096 by default). This mitigates the impact of an etcd watch bug (https://github.com/etcd-io/etcd/pull/17555). If the 1.27 change in PR 115096 to serve these requests from underlying storage is still desired despite the impact on watch stability, it can be re-enabled with a `WatchFromStorageWithoutResourceVersion` feature gate. ([#123935](https://github.com/kubernetes/kubernetes/pull/123935), [@serathius](https://github.com/serathius))...

running hash. It never returns an error. io.Writer // Sum appends the current hash to b and returns the resulting slice. // It does not change the underlying hash state. Sum(b []byte) []byte // Reset resets the Hash to its initial state. Reset() // Size returns the number of bytes Sum will return. Size() int // BlockSize returns the hash's underlying block size. // The Write method must be able to accept any amount // of data, but it may operate more efficiently if all writes // are a multiple of...

  - The label reconciliation happens as part of periodic status update which can be configured via flag `--node-status-update-frequency` ([#104613](https://github.com/kubernetes/kubernetes/pull/104613), [@ravis...

- Fix memory leak in kube-apiserver when underlying time goes forth and back. ([#96266](https://github.com/kubernetes/kubernetes/pull/96266), [@chenyw1990](https://github.com/chenyw1990)) [SIG API Machinery]

- Fix memory leak in kube-apiserver when underlying time goes forth and back. ([#96266](https://github.com/kubernetes/kubernetes/pull/96266), [@chenyw1990](https://github.com/chenyw1990)) [SIG API Machinery]

203D          ; valid                  ;      ; NV8    # 1.1  INTERROBANG
203E          ; disallowed_STD3_mapped ; 0020 0305     # 1.1  OVERLINE
203F..2046    ; valid                  ;      ; NV8    # 1.1  UNDERTIE..RIGHT SQUARE BRACKET WITH QUILL
2047          ; disallowed_STD3_mapped ; 003F 003F     # 3.2  DOUBLE QUESTION MARK
2048          ; disallowed_STD3_mapped ; 003F 0021     # 3.0  QUESTION EXCLAMATION MARK

resourceVersion from the watch cache by default, as in <1.27 (disabling the change in #115096 by default). This mitigates the impact of an etcd watch bug (https://github.com/etcd-io/etcd/pull/17555). If the 1.27 change in #115096 to serve these requests from underlying storage is still desired despite the impact on watch stability, it can be re-enabled with a `WatchFromStorageWithoutResourceVersion` feature gate. ([#123973](https://github.com/kubernetes/kubernetes/pull/123973), [@serathius](https://github.com/serathius))...

Volume cloning enables users to specify another PVC as a "DataSource" when provisioning a new volume. If the underlying storage system supports this functionality and implements the "CLONE_VOLUME" capability in its CSI driver, then the new volume becomes a clone of the source volume.

* Audit policy files without apiVersion and kind are treated as invalid. ([#54267](https://github.com/kubernetes/kubernetes/pull/54267), [@ericchiang](https://github.com/ericchiang))

### CSI Health Monitoring

The CSI health monitoring feature is being released as a second Alpha in Kubernetes 1.21. This feature enables CSI Drivers to share abnormal volume conditions from the underlying storage systems with Kubernetes so that they can be reported as events on PVCs or Pods. This feature serves as a stepping stone towards programmatic detection and resolution of individual volume health issues by Kubernetes.