scheme is "OkHttp-Preemptive".

 *  **OkHttp now offers full-operation timeouts.** This sets a limit on how long the entire call may
    take and covers resolving DNS, connecting, writing the request body, server processing, and
    reading the full response body. If a call requires redirects or retries all must complete within
    one timeout period.

"super-admin.conf" file is now deployed. The User in `admin.conf` is now bound to a new RBAC Group `kubeadm:cluster-admins` that has `cluster-admin` `ClusterRole` access. The User in `super-admin.conf` is now bound to the `system:masters` built-in super-powers / break-glass Group that can bypass RBAC. Before this change, the default `admin.conf` was bound to `system:masters` Group, which was undesired. Executing `kubeadm init phase kubeconfig all` or just `kubeadm init` will now generate the new `super-admin.conf`...

   */
  @Deprecated
  public static CharMatcher javaUpperCase() {
    return JavaUpperCase.INSTANCE;
  }

  /**
   * Determines whether a BMP character is lower case according to {@linkplain
   * Character#isLowerCase(char) Java's definition}.
   *
   * @deprecated Some lowercase characters are supplementary characters; see the class
   *     documentation.

  passed a file which contains RBAC roles, rolebindings, clusterroles, or
  clusterrolebindings, this command computes covers and adds the missing rules.
  The logic required to properly apply RBAC permissions is more complicated
  than a JSON merge because you have to compute logical covers operations between
  rule sets. This means that we cannot use `kubectl apply` to update RBAC roles

    * Default value for expendable pod priority cutoff in GCP deployment of Cluster Autoscaler changed from 0 to -10.
    * action required: users deploying workloads with priority lower than 0 may want to use priority lower than -10 to avoid triggering scale-up.

### Other notable changes

* Deprecate outofdisk-transition-frequency and low-diskspace-threshold-mb flags ([#41941](https://github.com/kubernetes/kubernetes/pull/41941), [@dashpole](https://github.com/dashpole))
* Add OWNERS for sample-apiserver in staging ([#42094](https://github.com/kubernetes/kubernetes/pull/42094), [@sttts](https://github.com/sttts))

- Mount-utils: treat syscall.ENODEV as corrupted mount ([#126174](https://github.com/kubernetes/kubernetes/pull/126174), [@dobsonj](https://github.com/dobsonj)) [SIG Storage]
- StatefulSet autodelete will respect controlling owners on PVC claims as described in https://github.com/kubernetes/enhancements/pull/4375 ([#126581](https://github.com/kubernetes/kubernetes/pull/126581), [@mattcary](https://github.com/mattcary)) [SIG Apps, Storage and Testing]

declarations and definitions. These may then be referred to from Go
code as though they were defined in the package "C". All names
declared in the preamble may be used, even if they start with a
lower-case letter. Exception: static variables in the preamble may
not be referenced from Go code; static functions are permitted.

See $GOROOT/cmd/cgo/internal/teststdio and $GOROOT/misc/cgo/gmp for examples. See

### Other (Cleanup or Flake)

- A new storage E2E testsuite covers CSIStorageCapacity publishing if a driver opts into the test. ([#100537](https://github.com/kubernetes/kubernetes/pull/100537), [@pohly](https://github.com/pohly)) [SIG Storage and Testing]

* NodeController waits for informer sync before doing anything ([#34809](https://github.com/kubernetes/kubernetes/pull/34809), [@gmarek](https://github.com/gmarek))
* azure: lower log priority for skipped nic update message ([#34730](https://github.com/kubernetes/kubernetes/pull/34730), [@colemickens](https://github.com/colemickens))