Troubleshoot on a node by creating a container running in the host namespaces and with access to the host’s filesystem.
Note that as a new builtin command, `kubectl debug` takes priority over any `kubectl` plugin named “debug”. You will need to rename the affected plugin.
Invocations using `kubectl alpha debug` are now deprecated and will be removed in a subsequent release. Update your scripts to use `kubectl debug` instead of `kubectl alpha debug`!

- Rename PluginContext to CycleState in the scheduling framework ([#83430](https://github.com/kubernetes/kubernetes/pull/83430), [@draveness](https://github.com/draveness))

- Removing experimental windows container hyper-v support with Docker ([#97141](https://github.com/kubernetes/kubernetes/pull/97141), [@wawa0210](https://github.com/wawa0210)) [SIG Node and Windows]

      }
    }
  }

  static class LoadingValueReference<K, V> implements ValueReference<K, V> {
    volatile ValueReference<K, V> oldValue;

    // TODO(fry): rename get, then extend AbstractFuture instead of containing SettableFuture
    final SettableFuture<V> futureValue = SettableFuture.create();
    final Stopwatch stopwatch = Stopwatch.createUnstarted();

    * Updating federation.v1beta1.Cluster API to disallow subdomains as valid cluster names. Only DNS labels are allowed as valid cluster names now.
* [Kubelet] Rename `--config` to `--pod-manifest-path`. `--config` is deprecated. ([#29999](https://github.com/kubernetes/kubernetes/pull/29999), [@mtaufen](https://github.com/mtaufen))

### Other notable changes

   ([#112133](https://github.com/kubernetes/kubernetes/pull/112133), [@knabben](https://github.com/knabben))
- Introduce `v1beta3` for Priority and Fairness with the following changes to the API spec:
  - rename 'assuredConcurrencyShares' (located under `spec.limited') to 'nominalConcurrencyShares'.

  * New commands

    * Add `kubectl config rename-context` ([#46114](https://github.com/kubernetes/kubernetes/pull/46114), [@arthur0](https://github.com/arthur0))

* Rename StorageProtection to StorageObjectInUseProtection ([#59901](https://github.com/kubernetes/kubernetes/pull/59901), [@NickrenREN](https://github.com/NickrenREN))

- Removed kubelet `--non-masquerade-cidr` deprecated CLI flag ([#107096](https://github.com/kubernetes/kubernetes/pull/107096), [@hakman](https://github.com/hakman))
- Rename unschedulableQ to unschedulablePods ([#108919](https://github.com/kubernetes/kubernetes/pull/108919), [@denkensk](https://github.com/denkensk))

- Rename pod_preemption_metrics to preemption_metrics. ([#93256](https://github.com/kubernetes/kubernetes/pull/93256), [@ahg-g](https://github.com/ahg-g)) [SIG Instrumentation and Scheduling]