- Add flag --lease-reuse-duration-seconds for kube-apiserver to config etcd lease reuse duration. ([#97009](https://github.com/kubernetes/kubernetes/pull/97009), [@lingsamuel](https://github.com/lingsamuel)) [SIG API Machinery and Scalability]

emplate")&&(e=e.content||e),ce.merge([],e.childNodes))}},function(r,i){ce.fn[r]=function(e,t){var n=ce.map(this,i,e);return"Until"!==r.slice(-5)&&(t=e),t&&"string"==typeof t&&(n=ce.filter(t,n)),1<this.length&&(j[r]||ce.uniqueSort(n),E.test(r)&&n.reverse()),this.pushStack(n)}});var D=/[^\x20\t\r\n\f]+/g;function N(e){return e}function q(e){throw e}function L(e,t,n,r){var i;try{e&&v(i=e.promise)?i.call(e).done(t).fail(n):e&&v(i=e.then)?i.call(e,t,n):t.apply(void 0,[e].slice(r))}catch(e){n.apply(void...

* Support secure etcd cluster for centos provider. ([#42994](https://github.com/kubernetes/kubernetes/pull/42994), [@Shawyeok](https://github.com/Shawyeok))

- Fixed a regression in `kube-proxy` where it might refuse to start if given
  single-stack `IPv6` configuration options on a node that has both `IPv4` and
  `IPv6` IPs. ([#121008](https://github.com/kubernetes/kubernetes/pull/121008), [@danwinship](https://github.com/danwinship))

for x := range fibo {
	if x >= 1000 {
		break
	}
	fmt.Printf("%d ", x)
}
// output: 0 1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987

// iteration support for a recursive tree data structure
type Tree[K cmp.Ordered, V any] struct {
	left, right *Tree[K, V]
	key         K
	value       V
}

func (t *Tree[K, V]) walk(yield func(key K, val V) bool) bool {

- Deprecated the following kubectl run flags, which are ignored if set: `--cascade`, `--filename`, `--force`, `--grace-period`, `--kustomize`, `--recursive`, `--timeout`, `--wait`. ([#112261](https://github.com/kubernetes/kubernetes/pull/112261), [@brianpursley](https://github.com/brianpursley))

/88290), [@tallclair](https://github.com/tallclair)) [SIG API Machinery and Node]

- `kubectl` no longer defaults to `http://localhost:8080`.  If you own one of these legacy clusters, you are *strongly- encouraged to secure your server.   If you cannot secure your server, you can set `KUBERNETES_MASTER` if you were relying on that behavior and you're client-go user. Set `--server`, `--kubeconfig` or `KUBECONFIG` to make it work in `kubectl`. ([#86173](https://github.com/kubernetes/ku...

i:]) } for ; i < c.roundKeysSize(); i++ { t := c.enc[i-1] if i%nk == 0 { t = subw(rotw(t)) ^ (uint32(powx[i/nk-1]) << 24) } else if nk > 6 && i%nk == 4 { t = subw(t) } c.enc[i] = c.enc[i-nk] ^ t } // Derive decryption key from encryption key. // Reverse the 4-word round key sets from enc to produce dec. // All sets but the first and last get the MixColumn transform applied. n := c.roundKeysSize() for i := 0; i < n; i += 4 { ei := n - i - 4 for j := 0; j < 4; j++ { x := c.enc[ei+j] if i > 0 && i+4...

* Fix restart action on juju kubernetes-master ([#47170](https://github.com/kubernetes/kubernetes/pull/47170), [@ktsakalozos](https://github.com/ktsakalozos))
* e2e: bump kubelet's resurce usage limit ([#47971](https://github.com/kubernetes/kubernetes/pull/47971), [@yujuhong](https://github.com/yujuhong))

### Skip Volume Ownership change graduates to GA

The feature to configure volume permission and ownership change policy for Pods moved to GA in 1.23.
This allows users to skip recursive permission changes on mount and speeds up the pod start up time.

### Allow CSI drivers to opt-in to volume ownership and permission change graduates to GA