- Since golang 1.17 both net.ParseIP and net.ParseCIDR rejects leading zeros in the dot-decimal notation of IPv4 addresses,
  Kubernetes will keep allowing leading zeros on IPv4 address to not break the compatibility.

		{
			fault:            None,
			partNumberMarker: "-1",
			maxParts:         "",
			expectedErr:      invalidPartMarkerErr,
		},
		// Test case - 3.
		// Max Parts is set a negative value, error response is validated.
		{
			fault:            None,
			partNumberMarker: "",
			maxParts:         "-1",
			expectedErr:      invalidMaxPartsErr,
		},
		// Test case - 4.

- Fixed binding of block PersistentVolumes / PersistentVolumeClaims when BlockVolume feature is off. ([#84049](https://github.com/kubernetes/kubernetes/pull/84049), [@jsafrane](https://github.com/jsafrane))
- Report non-confusing error for negative storage size in PVC spec. ([#82759](https://github.com/kubernetes/kubernetes/pull/82759), [@sttts](https://github.com/sttts))

* CDK nginx ingress is now handled via a daemon set. ([#57530](https://github.com/kubernetes/kubernetes/pull/57530), [@hyperbolic2346](https://github.com/hyperbolic2346))

* Move local PV negative scheduling tests to integration ([#57570](https://github.com/kubernetes/kubernetes/pull/57570), [@sbezverk](https://github.com/sbezverk))

- in an `--encryption-provider-config` config file, an explicit `cacheSize: 0` parameter previously silently defaulted to caching 1000 keys. In Kubernetes 1.18, this now returns a config validation error. To disable caching, you can specify a negative cacheSize value in Kubernetes 1.18+.

* Fix overlay2 container disk metrics for Docker and CRI-O ([#54827](https://github.com/kubernetes/kubernetes/pull/54827), [@dashpole](https://github.com/dashpole))
* API machinery's httpstream/spdy calls now support CIDR notation for NO_PROXY ([#54413](https://github.com/kubernetes/kubernetes/pull/54413), [@kad](https://github.com/kad))

*   The httpstream/spdy calls now support CIDR notation for NO_PROXY ([#54413](https://github.com/kubernetes/kubernetes/pull/54413),[ @kad](https://github.com/kad))

### Juju
* The kubernetes-master, kubernetes-worker and kubeapi-load-balancer charms have gained an nrpe-external-master relation, allowing the integration of their monitoring in an external Nagios server. ([#41923](https://github.com/kubernetes/kubernetes/pull/41923), [@Cynerva](https://github.com/Cynerva))

- Added a feature that allows a `StatefulSet` to start numbering replicas from an arbitrary non-negative ordinal, using the `.spec.ordinals.start` field. ([#112744](https://github.com/kubernetes/kubernetes/pull/112744), [@pwschuurman](https://github.com/pwschuurman))

- Fixed `--retries` functionality for negative values in `kubectl cp` ([#108748](https://github.com/kubernetes/kubernetes/pull/108748), [@atiratree](https://github.com/atiratree))