- Removed Alpha feature `MountContainers` ([#84365](https://github.com/kubernetes/kubernetes/pull/84365), [@codenrhoden](https://github.com/codenrhoden))

from flex-volumes as recommended by SIG Storage, since 1.22. If kubeadm users wish to continue using the feature, they would need a custom image for the KCM that is not based on distroless, pass the KCM flag `--flex-volume-plugin-dir` and mount the directory `/usr/libexec/kubernetes/kubelet-plugins/volume/exec` in the KCM static pod using kubeadm's `extraVolumes` mechanism before upgrading to 1.36. Up until now, kubeadm automatically did the mounting if the user passed the flag. ([#136423](https://g...

      .eventListenerFactory(clientTestRule.wrap(eventRecorder))
      .build()
  private val callback = RecordingCallback()
  private val cache =
    Cache(
      fileSystem = LoggingFilesystem(fileSystem),
      directory = "/cache".toPath(),
      maxSize = Int.MAX_VALUE.toLong(),
    )

  @BeforeEach
  fun setUp() {
    platform.assumeNotOpenJSSE()
  }

  @AfterEach
  fun tearDown() {
    cache.close()

- Kubeadm will cleanup the stale data on best effort basis. Stale data will be removed when each reset phase are executed, default etcd data directory will be cleanup when the `remove-etcd-member` phase are executed. ([#110972](https://github.com/kubernetes/kubernetes/pull/110972), [@chendave](https://github.com/chendave)) [SIG Cluster Lifecycle]

     * comment: Whether to use a dedicated temporary directory.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getUseOwnTmpDir();

    /**
     * Is the property for the key 'use.own.tmp.dir' true? <br>
     * The value is, e.g. true <br>
     * comment: Whether to use a dedicated temporary directory.

## Known Issues for v1.6.3

* This release introduced a regression when using [subPath](https://kubernetes.io/docs/concepts/storage/volumes/#using-subpath).
  If the `subPath` is a file rather than a directory, Pods may fail to start ([#45613](https://github.com/kubernetes/kubernetes/issues/45613)).

  **Do not upgrade to v1.6.3** if your cluster may run Pods with such subPaths.

## Downloads for v1.6.3

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- Volume attach or publish operation will not fail at `kubelet` if target path directory already exists on the node. ([#119735](https://github.com/kubernetes/kubernetes/pull/119735), [@akankshapanse](https://github.com/akankshapanse))

### Bug or Regression

- Consider only plugin directory and not entire kubelet root when cleaning up mounts ([#112921](https://github.com/kubernetes/kubernetes/pull/112921), [@mattcary](https://github.com/mattcary)) [SIG Storage]

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directory
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discourse.group
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discover
dish
diskstation.eu
diskstation.me
diskstation.org
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