a bug in the transforming informer during the Resync operation, 
  by making the transforming function idempotent. ([#124352](https://github.com/kubernetes/kubernetes/pull/124352), [@wojtek-t](https://github.com/wojtek-t)) [SIG API Machinery and Scheduling]

implementation is available to the public in source code form.  A
"Major Component", in this context, means a major essential component
(kernel, window system, and so on) of the specific operating system
(if any) on which the executable work runs, or a compiler used to
produce the work, or an object code interpreter used to run it.

  The "Corresponding Source" for a work in object code form means all

* Fix clustered datastore name to be absolute. ([#54438](https://github.com/kubernetes/kubernetes/pull/54438), [@pshahzeb](https://github.com/pshahzeb))
* Fix `kubeadm upgrade plan` for offline operation: ignore errors when trying to fetch latest versions from dl.k8s.io ([#54016](https://github.com/kubernetes/kubernetes/pull/54016), [@praseodym](https://github.com/praseodym))

- Kubeadm: supported updating certificate organization during `kubeadm certs renew` operation. ([#121841](https://github.com/kubernetes/kubernetes/pull/121841), [@SataQiu](https://github.com/SataQiu))

							Description:          getBucketRepLatencyMD(),
							HistogramBucketLabel: "range",
							Histogram:            stat.Latency.getUploadLatency(),
							VariableLabels:       map[string]string{"bucket": bucket, "operation": "upload", "targetArn": arn},
						})
						if c, ok := stat.Failed.ErrCounts["AccessDenied"]; ok {
							metrics = append(metrics, MetricV2{

- Apiserver adds two new metrics `etcd_requests_total` and `etcd_request_errors_total` that allow users to monitor requests to etcd storage, split by operation and resource type. ([#117222](https://github.com/kubernetes/kubernetes/pull/117222), [@iyear](https://github.com/iyear)) [SIG API Machinery]

- For raw block CSI volumes on Kubernetes, kubelet was incorrectly calling CSI `NodeStageVolume` for every single "map" (i.e. raw block "mount") operation for a volume already attached to the node. This change modified that behavior to ensure it is only called once per volume per node. ([#112403](https://github.com/kubernetes/kubernetes/pull/112403), [@akankshakumari393](https://github.com/akankshakumari393))...

- Reduce event spam during a volume operation error. ([#89796](https://github.com/kubernetes/kubernetes/pull/89796), [@msau42](https://github.com/msau42)) [SIG Storage]


# v1.18.0

[Documentation](https://docs.k8s.io)

## Downloads for v1.18.0

    or force deletion of the pod from the api-server).
    This helps prevent "split brain" scenarios in clustered applications by
    ensuring that unreachable pods will not be presumed dead unless some
    "fencing" operation has provided one of the above indications.
  * For all other existing controllers except StatefulSet, this has no effect on
    the ability of the controller to replace pods because the controllers do not

- The `WarningHeader` feature is now GA and is unconditionally enabled. The `apiserver_requested_deprecated_apis` metric has graduated to stable status. The `WarningHeader` feature-gate is no longer operative and will be removed in v1.24. ([#100754](https://github.com/kubernetes/kubernetes/pull/100754), [@liggitt](https://github.com/liggitt)) [SIG API Machinery, Instrumentation and Testing]