- Kubeadm: switch the preflight check (called 'Swap') that verifies if swap is enabled on Linux hosts to report a warning instead of an error. This is related to the graduation of the NodeSwap feature gate in the kubelet to Beta and being enabled by default in 1.23 - allows swap support on Linux hosts. In the next release of kubeadm (1.24) the preflight check will be removed, thus we recommend that you stop using...

func uniq(data sort.Interface) (size int) {
	p, l := 0, data.Len()
	if l <= 1 {
		return l
	}
	for i := 1; i < l; i++ {
		if !data.Less(p, i) {
			continue
		}
		p++
		if p < i {
			data.Swap(p, i)
		}
	}
	return p + 1
}

// Remove any duplicates and return unique entries.
func uniqueEntries(paths []string) []string {
	sort.Strings(paths)
	n := uniq(sort.StringSlice(paths))

* kubeadm now produces error during preflight checks if swap is enabled. Users, who can setup kubelet to run in unsupported environment with enabled swap, will be able to skip that preflight check. ([#55399](https://github.com/kubernetes/kubernetes/pull/55399), [@kad](https://github.com/kad))

  - The deprecated `--show-all` flag to `kubectl get` has been removed  ([#69255](https://github.com/kubernetes/kubernetes/pull/69255), [@Pingan2017](https://github.com/Pingan2017))

- kubelet
  - The deprecated `--experimental-fail-swap-on` flag has been removed ([#69552](https://github.com/kubernetes/kubernetes/pull/69552), [@Pingan2017](https://github.com/Pingan2017))

- Fixed /metrics/resource container_swap_usage_bytes to report the correct container swap usage ([#137098](https://github.com/kubernetes/kubernetes/pull/137098), [@yuanwang04](https://github.com/yuanwang04)) [SIG Apps, Node and Testing]

estElements","inPage","detach","append","prepend","insertBefore","before","after","replaceWith","replaceChild","appendTo","prependTo","insertAfter","replaceAll","original","insert","rnumnonpx","rcustomProp","getStyles","opener","getComputedStyle","swap","old","rboxStyle","curCSS","computed","width","minWidth","maxWidth","isCustomProp","getPropertyValue","pixelBoxStyles","addGetHookIf","conditionFn","hookFn","computeStyleTests","container","cssText","divStyle","pixelPositionVal","reliableMarginLe...

estElements","inPage","detach","append","prepend","insertBefore","before","after","replaceWith","replaceChild","appendTo","prependTo","insertAfter","replaceAll","original","insert","rnumnonpx","rcustomProp","getStyles","opener","getComputedStyle","swap","old","rboxStyle","curCSS","computed","width","minWidth","maxWidth","isCustomProp","getPropertyValue","pixelBoxStyles","addGetHookIf","conditionFn","hookFn","computeStyleTests","container","cssText","divStyle","pixelPositionVal","reliableMarginLe...

* StatefulSet in apps/v1 is now included in Conformance Tests. ([#60336](https://github.com/kubernetes/kubernetes/pull/60336), [@enisoc](https://github.com/enisoc))

* dockertools: disable memory swap on Linux. ([#59404](https://github.com/kubernetes/kubernetes/pull/59404), [@ohmystack](https://github.com/ohmystack))

- Kubectl: print error if users place flags before plugin name ([#92343](https://github.com/kubernetes/kubernetes/pull/92343), [@knight42](https://github.com/knight42)) [SIG CLI]
- Kubelet: assume that swap is disabled when `/proc/swaps` does not exist ([#93931](https://github.com/kubernetes/kubernetes/pull/93931), [@SataQiu](https://github.com/SataQiu)) [SIG Node]

pkg sort, method (StringSlice) Sort()
pkg sort, method (StringSlice) Swap(int, int)
pkg sort, type Float64Slice []float64
pkg sort, type IntSlice []int
pkg sort, type Interface interface { Len, Less, Swap }
pkg sort, type Interface interface, Len() int
pkg sort, type Interface interface, Less(int, int) bool
pkg sort, type Interface interface, Swap(int, int)
pkg sort, type StringSlice []string