- The kube-apiserver ability to serve on an insecure port, deprecated since v1.10, has been removed. The insecure address flags `--address` and `--insecure-bind-address` have no effect in kube-apiserver and will be removed in v1.24. The insecure port flags `--port` and `--insecure-port` may only be set to 0 and will be removed in v1.24. ([#95856](https://github.com/kubernetes/kubernetes/pull/95856), [@knight42](https://github.com/knight42), [SIG API Machinery,...

- Removed feature gate `SetHostnameAsFQDN`. ([#108038](https://github.com/kubernetes/kubernetes/pull/108038), [@mengjiao-liu](https://github.com/mengjiao-liu))
- Removed kube-scheduler insecure flags. You can use `--bind-address` and `--secure-port` instead. ([#106865](https://github.com/kubernetes/kubernetes/pull/106865), [@jonyhy96](https://github.com/jonyhy96))

- Remove balanced attached node volumes feature. ([#102443](https://github.com/kubernetes/kubernetes/pull/102443), [@ravisantoshgudimetla](https://github.com/ravisantoshgudimetla))
- Remove deprecated `--generator` flag from `kubectl autoscale`. ([#99900](https://github.com/kubernetes/kubernetes/pull/99900), [@MadhavJivrajani](https://github.com/MadhavJivrajani))

    * Remove deprecated ContainerVM support from GCE kube-up.  ([#58247](https://github.com/kubernetes/kubernetes/pull/58247), [@mikedanese](https://github.com/mikedanese))

    * Remove deprecated kube-push.sh functionality.  ([#58246](https://github.com/kubernetes/kubernetes/pull/58246), [@mikedanese](https://github.com/mikedanese))

 - Remove alpha `CSIMigrationXXComplete` flag and add alpha `InTreePluginXXUnregister` flag. Deprecate `CSIMigrationvSphereComplete` flag and it will be removed in v1.22. ([#98243](https://github.com/kubernetes/kubernetes/pull/98243), [@Jiawei0227](https://github.com/Jiawei0227))

- Feature-gate VolumeSubpath has been deprecated and cannot be disabled. It will be completely removed in 1.25 (#105474, @mauriciopoppe) [SIG Storage]
- Kubeadm: remove the deprecated / NO-OP phase "update-cluster-status" in "kubeadm reset" (#105888, @neolit123) [SIG Cluster Lifecycle]

- Remove GAed feature gate DelegateFSGroupToCSIDriver ([#117655](https://github.com/kubernetes/kubernetes/pull/117655), [@carlory](https://github.com/carlory)) [SIG Storage]
- Remove GAed feature gate DevicePlugins ([#117656](https://github.com/kubernetes/kubernetes/pull/117656), [@carlory](https://github.com/carlory)) [SIG Node]

- Remove GAed feature gates TopologyManager ([#121252](https://github.com/kubernetes/kubernetes/pull/121252), [@tukwila](https://github.com/tukwila)) [SIG Node]
- Removed the `CronJobTimeZone` feature gate (the feature is stable and always enabled)
  - Removed the `JobMutableNodeSchedulingDirectives` feature gate (the feature is stable and always enabled)

- Remove GA featuregate RemoveSelfLink ([#122468](https://github.com/kubernetes/kubernetes/pull/122468), [@carlory](https://github.com/carlory)) [SIG API Machinery]
- Remove GA featuregate about ExperimentalHostUserNamespaceDefaultingGate in 1.30 ([#122088](https://github.com/kubernetes/kubernetes/pull/122088), [@bzsuni](https://github.com/bzsuni)) [SIG Node]

*   Kubelet no longer removes unregistered extended resource capacities from node status; cluster admins will have to manually remove extended resources exposed via device plugins when they the remove plugins themselves. ([#53353](https://github.com/kubernetes/kubernetes/pull/53353),[ @jiayingz](https://github.com/jiayingz))