- A customizable `OrderedScoreFuncs()` function was introduced. Out-of-tree plugins 
  that used the scheduler's preemption interface could implement this function
  for custom preemption preferences or return nil to keep the current behavior. ([#121867](https://github.com/kubernetes/kubernetes/pull/121867), [@lianghao208](https://github.com/lianghao208))

### Cluster Lifecycle

- kubeadm: fixed nil pointer dereference caused by a bug in url parsing ([#74454](https://github.com/kubernetes/kubernetes/pull/74454), [@bart0sh](https://github.com/bart0sh))

- Ignore context canceled from validate and mutate webhook ([#120155](https://github.com/kubernetes/kubernetes/pull/120155), [@divyasri537](https://github.com/divyasri537)) [SIG API Machinery]
- Kubeadm: fix nil pointer when etcd member is already removed ([#120010](https://github.com/kubernetes/kubernetes/pull/120010), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

## Dependencies

### Added

- Ignore context canceled from validate and mutate webhook ([#120020](https://github.com/kubernetes/kubernetes/pull/120020), [@divyasri537](https://github.com/divyasri537)) [SIG API Machinery]
- Kubeadm: fix nil pointer when etcd member is already removed ([#120011](https://github.com/kubernetes/kubernetes/pull/120011), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

### Other (Cleanup or Flake)

- Ignore context canceled from validate and mutate webhook ([#120017](https://github.com/kubernetes/kubernetes/pull/120017), [@divyasri537](https://github.com/divyasri537)) [SIG API Machinery]
- Kubeadm: fix nil pointer when etcd member is already removed ([#120013](https://github.com/kubernetes/kubernetes/pull/120013), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

### Other (Cleanup or Flake)

- Azure: check the nil error before invoke err.Error() ([#96623](https://github.com/kubernetes/kubernetes/pull/96623), [@nilo19](https://github.com/nilo19)) [SIG Cloud Provider]

* Fixes a bug where if an error was returned that was not an `autorest.DetailedError` we would return `"not found", nil` which caused nodes to go to `NotReady` state. ([#57484](https://github.com/kubernetes/kubernetes/pull/57484), [@brendandburns](https://github.com/brendandburns))

- Ignore context canceled from validate and mutate webhook ([#120019](https://github.com/kubernetes/kubernetes/pull/120019), [@divyasri537](https://github.com/divyasri537)) [SIG API Machinery]
- Kubeadm: fix nil pointer when etcd member is already removed ([#120012](https://github.com/kubernetes/kubernetes/pull/120012), [@neolit123](https://github.com/neolit123)) [SIG Cluster Lifecycle]

### Other (Cleanup or Flake)

- Applying fix: cleanup outdated routes. ([#102935](https://github.com/kubernetes/kubernetes/pull/102935), [@nilo19](https://github.com/nilo19))
- Avoid caching the Azure VMSS instances whose network profile is nil ([#100948](https://github.com/kubernetes/kubernetes/pull/100948), [@feiskyer](https://github.com/feiskyer)) [SIG Cloud Provider]

- Fixed node lifecycle controller panic when conditionType ready is been patch `nil` by mistake. ([#122874](https://github.com/kubernetes/kubernetes/pull/122874), [@fusida](https://github.com/fusida))