* feat: regenerate library with OpenAPI Generator v5.4.0 ([185](https://github.com/tomplus/kubernetes_asyncio/pull/185), [tomplus](https://github.com/tomplus))
Some changes from [OpenAPI Generator Changelog](https://github.com/OpenAPITools/openapi-generator/releases/) (previous version v4.3.0):
- feat(python-asyncio): add support for proxy config using system env vars
- add option to select/detect content-type
- add `socket_options` to configuration for the rest client
- correct return types if multiple responses are defined
- subclass Python exceptions
- fix Python UTF-8 Encoding Issue
* feat: add support for aiohttp proxy config using env vars ([173](https://github.com/tomplus/kubernetes_asyncio/pull/173), [icamposrivera](https://github.com/icamposrivera))
API Change
- Kube-apiserver: Fixes handling of CRD schemas containing literal null values in enums (104988, liggitt) [SIG API Machinery, Apps and Network]
- A new score extension for NodeResourcesFit plugin that merges the functionality of `NodeResourcesLeastAllocated`, `NodeResourcesMostAllocated`, `RequestedToCapacityRatio` plugins, which are marked as deprecated as of v1beta2. In v1beta1, the three plugins can still be used in v1beta1 but not at the same time with the score extension of `NodeResourcesFit`. ([kubernetes/kubernetes101822](https://github.com/kubernetes/kubernetes/pull/101822), [yuzhiquan](https://github.com/yuzhiquan))
- A value of `Auto` is now a valid for the `service.kubernetes.io/topology-aware-hints` annotation. ([kubernetes/kubernetes100728](https://github.com/kubernetes/kubernetes/pull/100728), [robscott](https://github.com/robscott))
- Add `DataSourceRef` alpha field to PVC spec, which allows contents other than `PVCs` and `VolumeSnapshots` to be data sources. ([kubernetes/kubernetes103276](https://github.com/kubernetes/kubernetes/pull/103276), [bswartz](https://github.com/bswartz))
- Add `PersistentVolumeClaimDeletePoilcy` to StatefulSet API. ([kubernetes/kubernetes99378](https://github.com/kubernetes/kubernetes/pull/99378), [mattcary](https://github.com/mattcary))
- Add a new Priority and Fairness rule that exempts all probes (`/readyz`, `/healthz`, `/livez`) to prevent restarting of healthy `kube-apiserver` instance by kubelet. ([kubernetes/kubernetes100678](https://github.com/kubernetes/kubernetes/pull/100678), [tkashem](https://github.com/tkashem))
- Add alpha support for HostProcess containers on Windows ([kubernetes/kubernetes99576](https://github.com/kubernetes/kubernetes/pull/99576), [marosset](https://github.com/marosset)) [SIG API Machinery, Apps, Node, Testing and Windows]
- Add distributed tracing to the `kube-apiserver`. It is can be enabled with the feature gate `APIServerTracing` ([kubernetes/kubernetes94942](https://github.com/kubernetes/kubernetes/pull/94942), [dashpole](https://github.com/dashpole))
- Add three metrics to the job controller to monitor if a job works in healthy condition.
`IndexedJob` has been promoted to Beta. ([kubernetes/kubernetes101292](https://github.com/kubernetes/kubernetes/pull/101292), [AliceZhang2016](https://github.com/AliceZhang2016))
- Added field `.status.uncountedTerminatedPods` to the Job resource. This field is used by the job controller to keep track of finished pods before adding them to the Job status counters. Pods created by the job controller get the finalizer `batch.kubernetes.io/job-tracking`
Jobs that are tracked using this mechanism get the annotation `batch.kubernetes.io/job-tracking`. This is a temporary measure. Two releases after this feature graduates to beta, the annotation won't be added to Jobs anymore. ([kubernetes/kubernetes98817](https://github.com/kubernetes/kubernetes/pull/98817), [alculquicondor](https://github.com/alculquicondor))
- Added new kubelet alpha feature `SeccompDefault`. This feature enables falling back to
the `RuntimeDefault` (former `runtime/default`) seccomp profile if nothing else is specified
in the pod/container `SecurityContext` or the pod annotation level. To use the feature, enable
the feature gate as well as set the kubelet configuration option `SeccompDefault`
(`--seccomp-default`) to `true`. ([kubernetes/kubernetes101943](https://github.com/kubernetes/kubernetes/pull/101943), [saschagrunert](https://github.com/saschagrunert)) [SIG Node]
- Adds the `ReadWriteOncePod` access mode for `PersistentVolumes` and `PersistentVolumeClaims`. Restricts volume access to a single pod on a single node. ([kubernetes/kubernetes102028](https://github.com/kubernetes/kubernetes/pull/102028), [chrishenzie](https://github.com/chrishenzie))
- Alpha swap support can now be enabled on Kubernetes nodes with the `NodeSwapEnabled` feature flag. See [KEP-2400](https://github.com/kubernetes/enhancements/blob/master/keps/sig-node/2400-node-swap/README.md#design-details) for details. ([kubernetes/kubernetes102823](https://github.com/kubernetes/kubernetes/pull/102823), [ehashman](https://github.com/ehashman))
- Because of the implementation logic of `time.Format` in golang, the displayed time zone is not consistent. ([kubernetes/kubernetes102366](https://github.com/kubernetes/kubernetes/pull/102366), [cndoit18](https://github.com/cndoit18))
- Corrected the documentation for escaping dollar signs in a container's env, command and args property. ([kubernetes/kubernetes101916](https://github.com/kubernetes/kubernetes/pull/101916), [MartinKanters](https://github.com/MartinKanters)) [SIG Apps]
- Enable `MaxSurge` for `DaemonSet` by default. ([kubernetes/kubernetes101742](https://github.com/kubernetes/kubernetes/pull/101742), [ravisantoshgudimetla](https://github.com/ravisantoshgudimetla))
- Enforce the `ReadWriteOncePod` PVC access mode during scheduling ([kubernetes/kubernetes103082](https://github.com/kubernetes/kubernetes/pull/103082), [chrishenzie](https://github.com/chrishenzie))
- Ephemeral containers are now allowed to configure a `securityContext` that differs from that of the Pod. Cluster administrators should ensure that security policy controllers support `EphemeralContainers` before enabling this feature in clusters. ([kubernetes/kubernetes99023](https://github.com/kubernetes/kubernetes/pull/99023), [verb](https://github.com/verb))
- Exec plugin authors can override default handling of standard input via new `interactiveMode` kubeconfig field. ([kubernetes/kubernetes99310](https://github.com/kubernetes/kubernetes/pull/99310), [ankeesler](https://github.com/ankeesler))
- If someone had the `ProbeTerminationGracePeriod` alpha feature enabled in 1.21, they should update/delete any workloads/pods with probe `terminationGracePeriods` < 1 before upgrading ([kubernetes/kubernetes103245](https://github.com/kubernetes/kubernetes/pull/103245), [wzshiming](https://github.com/wzshiming))
- Improved parsing of label selectors ([kubernetes/kubernetes102188](https://github.com/kubernetes/kubernetes/pull/102188), [alculquicondor](https://github.com/alculquicondor)) [SIG API Machinery]
- Introduce `minReadySeconds` api to the `StatefulSets`. ([kubernetes/kubernetes100842](https://github.com/kubernetes/kubernetes/pull/100842), [ravisantoshgudimetla](https://github.com/ravisantoshgudimetla))
- Introducing Memory quality of service support with `cgroups v2 (Alpha)`. The `MemoryQoS` feature is now in Alpha. This allows `kubelet` running with `cgroups v2` to set memory QoS at container, pod and QoS level to protect and guarantee better memory quality. This feature can be enabled through feature gate Memory QoS. ([kubernetes/kubernetes102970](https://github.com/kubernetes/kubernetes/pull/102970), [borgerli](https://github.com/borgerli))
- Kube API server accepts `Impersonate-Uid` header to impersonate a user with a specific UID, in the same way that you can currently use `Impersonate-User`, `Impersonate-Group` and `Impersonate-Extra`. ([kubernetes/kubernetes99961](https://github.com/kubernetes/kubernetes/pull/99961), [margocrawf](https://github.com/margocrawf))
- Kube-apiserver: `--service-account-issuer` can be specified multiple times now, to enable non-disruptive change of issuer. ([kubernetes/kubernetes101155](https://github.com/kubernetes/kubernetes/pull/101155), [zshihang](https://github.com/zshihang)) [SIG API Machinery, Auth, Node and Testing]
- Kube-controller-manager: the `--horizontal-pod-autoscaler-use-rest-clients` flag and Heapster support in the horizontal pod autoscaler, deprecated since 1.12, is removed. ([kubernetes/kubernetes90368](https://github.com/kubernetes/kubernetes/pull/90368), [serathius](https://github.com/serathius))
- Kube-scheduler: a plugin enabled in a v1beta2 configuration file takes precedence over the default configuration for that plugin. This simplifies enabling default plugins with custom configuration without needing to explicitly disable those default plugins. ([kubernetes/kubernetes99582](https://github.com/kubernetes/kubernetes/pull/99582), [chendave](https://github.com/chendave))
- New `node-high` priority-level has been added to Suggested API Priority and ([kubernetes/kubernetes101151](https://github.com/kubernetes/kubernetes/pull/101151), [mborsz](https://github.com/mborsz))
- NodeSwapEnabled feature flag was renamed to NodeSwap
The flag was only available in the 1.22.0-beta.1 release, and the new flag should be used going forward. ([kubernetes/kubernetes103553](https://github.com/kubernetes/kubernetes/pull/103553), [ehashman](https://github.com/ehashman)) [SIG Node]
- Omit comparison with boolean constant ([kubernetes/kubernetes101523](https://github.com/kubernetes/kubernetes/pull/101523), [chuntaochen](https://github.com/chuntaochen)) [SIG CLI and Cloud Provider]
- Removed the feature flag for probe-level termination grace period from Kubelet. If a user wants to disable this feature on already created pods, they will have to delete and recreate the pods. ([kubernetes/kubernetes103168](https://github.com/kubernetes/kubernetes/pull/103168), [raisaat](https://github.com/raisaat)) [SIG Apps and Node]
- Revert addition of Add `PersistentVolumeClaimDeletePoilcy` to `StatefulSet`API. ([kubernetes/kubernetes103747](https://github.com/kubernetes/kubernetes/pull/103747), [mattcary](https://github.com/mattcary))
- Scheduler could be configured to consider new resources beside CPU and memory, GPU for example, for the score plugin of `NodeResourcesBalancedAllocation`. ([kubernetes/kubernetes101946](https://github.com/kubernetes/kubernetes/pull/101946), [chendave](https://github.com/chendave)) [SIG Scheduling]
- Server Side Apply now treats all <Some>Selector fields as atomic (meaning the entire selector is managed by a single writer and updated together), since they contain interrelated and inseparable fields that do not merge in intuitive ways. ([kubernetes/kubernetes97989](https://github.com/kubernetes/kubernetes/pull/97989), [Danil-Grigorev](https://github.com/Danil-Grigorev)) [SIG API Machinery]
- Suspend Job feature graduated to beta. Added the `action` label to Job controller sync metrics `job_sync_total` and `job_sync_duration_seconds`. ([kubernetes/kubernetes102022](https://github.com/kubernetes/kubernetes/pull/102022), [adtac](https://github.com/adtac))
- The API documentation for the DaemonSet's `spec.updateStrategy.rollingUpdate.maxUnavailable` field was corrected to state that the value is rounded up. ([kubernetes/kubernetes101296](https://github.com/kubernetes/kubernetes/pull/101296), [Miciah](https://github.com/Miciah))
- The `CSIServiceAccountToken` graduates to Ga and is unconditionally enabled. ([kubernetes/kubernetes103001](https://github.com/kubernetes/kubernetes/pull/103001), [zshihang](https://github.com/zshihang))
- The `CertificateSigningRequest.certificates.k8s.io` API supports an optional expirationSeconds field to allow the client to request a particular duration for the issued certificate. The default signer implementations provided by the Kubernetes controller manager will honor this field as long as it does not exceed the --cluster-signing-duration flag. ([kubernetes/kubernetes99494](https://github.com/kubernetes/kubernetes/pull/99494), [enj](https://github.com/enj))
- The `EndpointSlicen Mirroring controller` no longer mirrors the `last-applied-configuration` annotation created by `kubectl` to update `EndpointSlices`. ([kubernetes/kubernetes102731](https://github.com/kubernetes/kubernetes/pull/102731), [sharmarajdaksh](https://github.com/sharmarajdaksh))
- The `NetworkPolicyEndPort` is graduated to beta and is enabled by default. ([kubernetes/kubernetes102834](https://github.com/kubernetes/kubernetes/pull/102834), [rikatz](https://github.com/rikatz))
- The `PodDeletionCost` feature has been promoted to beta, and enabled by default. ([kubernetes/kubernetes101080](https://github.com/kubernetes/kubernetes/pull/101080), [ahg-g](https://github.com/ahg-g))
- The `Server Side Apply` treats certain structs as atomic. Meaning the entire selector field is managed by a single writer and updated together. ([kubernetes/kubernetes100684](https://github.com/kubernetes/kubernetes/pull/100684), [Jefftree](https://github.com/Jefftree))
- The `ServiceAppProtocol` feature gate has been removed. It reached GA in Kubernetes ([kubernetes/kubernetes103190](https://github.com/kubernetes/kubernetes/pull/103190), [robscott](https://github.com/robscott))
- The `TerminationGracePeriodSeconds` on pod specs and container probes should not be negative. Negative values of `TerminationGracePeriodSeconds` will be treated as the value `1s` on the delete path. Immutable field validation will be relaxed in order to update negative values. In a future release, negative values will not be permitted. ([kubernetes/kubernetes98866](https://github.com/kubernetes/kubernetes/pull/98866), [wzshiming](https://github.com/wzshiming))
- The `kube-scheduler` component config `v1beta2` API available
Three scheduler plugins deprecated (`NodeLabel`, `ServiceAffinity`, `NodePreferAvoidPods`). ([kubernetes/kubernetes99597](https://github.com/kubernetes/kubernetes/pull/99597), [adtac](https://github.com/adtac))
- The `pod/eviction` subresource now accepts `policy/v1` eviction requests in addition to `policy/v1beta1` eviction requests ([kubernetes/kubernetes100724](https://github.com/kubernetes/kubernetes/pull/100724), [liggitt](https://github.com/liggitt))
- The `podAffinity`, `NamespaceSelector` and the associated `CrossNamespaceAffinity` quota scope features graduate to Beta and they are now enabled by default. ([kubernetes/kubernetes101496](https://github.com/kubernetes/kubernetes/pull/101496), [ahg-g](https://github.com/ahg-g))
- The `pods/ephemeralcontainers` API now returns and expects a `Pod` object instead of `EphemeralContainers`. This is incompatible with the previous alpha-level API. ([kubernetes/kubernetes101034](https://github.com/kubernetes/kubernetes/pull/101034), [verb](https://github.com/verb)) [SIG Apps, Auth, CLI and Testing]
- The `v1.Node` and `.status.images[].names` are now optional. ([kubernetes/kubernetes102159](https://github.com/kubernetes/kubernetes/pull/102159), [roycaihw](https://github.com/roycaihw))
- The deprecated flag `--algorithm-provider` has been removed from `kube-scheduler`. Use instead `ComponentConfig` to configure the set of enabled plugins. ([kubernetes/kubernetes102239](https://github.com/kubernetes/kubernetes/pull/102239), [Haleygo](https://github.com/Haleygo))
- The options `--ssh-user` and `--ssh-key` are removed. They only functioned on GCE, and only in-tree. Use the apiserver network proxy instead. ([kubernetes/kubernetes102297](https://github.com/kubernetes/kubernetes/pull/102297), [deads2k](https://github.com/deads2k))
- Track Job completion through status and Pod finalizers, removing dependency on Pod tombstones. ([kubernetes/kubernetes98238](https://github.com/kubernetes/kubernetes/pull/98238), [alculquicondor](https://github.com/alculquicondor)) [SIG API Machinery, Apps, Auth and Testing]
- Track ownership of scale subresource for all scalable resources i.e. Deployment, ReplicaSet, StatefulSet, ReplicationController, and Custom Resources. ([kubernetes/kubernetes98377](https://github.com/kubernetes/kubernetes/pull/98377), [nodo](https://github.com/nodo)) [SIG API Machinery and Testing]
- Revert addition of Add PersistentVolumeClaimDeletePoilcy to StatefulSet API. ([kubernetes/kubernetes103747](https://github.com/kubernetes/kubernetes/pull/103747), [mattcary](https://github.com/mattcary)) [SIG API Machinery and Apps]
- Added field .status.uncountedTerminatedPods to the Job resource. This field is used by the job controller to keep track of finished pods before adding them to the Job status counters.
Pods created by the job controller get the finalizer batch.kubernetes.io/job-tracking
Jobs that are tracked using this mechanism get the annotation batch.kubernetes.io/job-tracking. This is a temporary measure. Two releases after this feature graduates to beta, the annotation won't be added to Jobs anymore. ([kubernetes/kubernetes98817](https://github.com/kubernetes/kubernetes/pull/98817), [alculquicondor](https://github.com/alculquicondor)) [SIG API Machinery, Apps, Auth and CLI]
- Ephemeral containers are now allowed to configure a securityContext that differs from that of the Pod.
Cluster administrators should ensure that security policy controllers support EphemeralContainers before enabling this feature in clusters. ([kubernetes/kubernetes99023](https://github.com/kubernetes/kubernetes/pull/99023), [verb](https://github.com/verb)) [SIG API Machinery, Apps, Auth and Node]
- If someone had the ProbeTerminationGracePeriod alpha feature enabled in 1.21, they should update/delete any workloads/pods with probe terminationGracePeriods < 1 before upgrading ([kubernetes/kubernetes103245](https://github.com/kubernetes/kubernetes/pull/103245), [wzshiming](https://github.com/wzshiming)) [SIG Apps and Node]
- Introducing Memory QoS support with cgroups v2 (Alpha)
The MemoryQoS feature is now in Alpha. This allows kubelet running with cgroups v2 to set memory QoS at container, pod and QoS level to protect and guarantee better memory quality. This feature can be enabled through feature gate MemoryQoS. ([kubernetes/kubernetes102970](https://github.com/kubernetes/kubernetes/pull/102970), [borgerli](https://github.com/borgerli)) [SIG Node and Storage]
- NodeSwapEnabled feature flag was renamed to NodeSwap
The flag was only available in the 1.22.0-beta.1 release, and the new flag should be used going forward. ([kubernetes/kubernetes103553](https://github.com/kubernetes/kubernetes/pull/103553), [ehashman](https://github.com/ehashman)) [SIG Node]
- Removed the feature flag for probe-level termination grace period from Kubelet. If a user wants to disable this feature on already created pods, they will have to delete and recreate the pods. ([kubernetes/kubernetes103168](https://github.com/kubernetes/kubernetes/pull/103168), [raisaat](https://github.com/raisaat)) [SIG Apps and Node]
- Track Job completion through status and Pod finalizers, removing dependency on Pod tombstones. ([kubernetes/kubernetes98238](https://github.com/kubernetes/kubernetes/pull/98238), [alculquicondor](https://github.com/alculquicondor)) [SIG API Machinery, Apps, Auth and Testing]
- When using `kubectl replace` (or the equivalent API call) on a Service, the caller no longer needs to do a read-modify-write cycle to fetch the allocated values for `.spec.clusterIP` and `.spec.ports[].nodePort`. Instead the API server will automatically carry these forward from the original object when the new object does not specify them. ([kubernetes/kubernetes103532](https://github.com/kubernetes/kubernetes/pull/103532), [thockin](https://github.com/thockin)) [SIG Apps and Network]
- A new score extension for NodeResourcesFit plugin that merges the functionality of NodeResourcesLeastAllocated,NodeResourcesMostAllocated,RequestedToCapacityRatio plugins, which are marked as deprecated as of v1beta2. In v1beta1, the three plugins can still be used in v1beta1 but not at the same time with the score extension of NodeResourcesFit
- Add DataSourceRef alpha field to PVC spec, which allows contents other than PVCs and VolumeSnapshots to be data sources. ([kubernetes/kubernetes103276](https://github.com/kubernetes/kubernetes/pull/103276), [bswartz](https://github.com/bswartz)) [SIG API Machinery, Apps and Storage]
- Add PersistentVolumeClaimDeletePoilcy to StatefulSet API. ([kubernetes/kubernetes99378](https://github.com/kubernetes/kubernetes/pull/99378), [mattcary](https://github.com/mattcary)) [SIG API Machinery and Apps]
- Add distributed tracing to the kube-apiserver. It is can be enabled with the feature gate: APIServerTracing=true ([kubernetes/kubernetes94942](https://github.com/kubernetes/kubernetes/pull/94942), [dashpole](https://github.com/dashpole)) [SIG API Machinery, CLI, Cloud Provider, Cluster Lifecycle, Instrumentation, Node, Storage and Testing]
- Added new kubelet alpha feature `SeccompDefault`. This feature enables falling back to
the `RuntimeDefault` (former `runtime/default`) seccomp profile if nothing else is specified
in the pod/container `SecurityContext` or the pod annotation level. To use the feature, enable
the feature gate as well as set the kubelet configuration option `SeccompDefault`
(`--seccomp-default`) to `true`. ([kubernetes/kubernetes101943](https://github.com/kubernetes/kubernetes/pull/101943), [saschagrunert](https://github.com/saschagrunert)) [SIG Node]
- Adds the ReadWriteOncePod access mode for PersistentVolumes and PersistentVolumeClaims. Restricts volume access to a single pod on a single node. ([kubernetes/kubernetes102028](https://github.com/kubernetes/kubernetes/pull/102028), [chrishenzie](https://github.com/chrishenzie)) [SIG Apps, CLI, Node, Scheduling and Storage]
- Alpha swap support can now be enabled on Kubernetes nodes with the NodeSwapEnabled feature flag. See <website link> for details. ([kubernetes/kubernetes102823](https://github.com/kubernetes/kubernetes/pull/102823), [ehashman](https://github.com/ehashman)) [SIG Node]
- CSIServiceAccountToken is GA. ([kubernetes/kubernetes103001](https://github.com/kubernetes/kubernetes/pull/103001), [zshihang](https://github.com/zshihang)) [SIG Auth and Storage]
- Enforce the ReadWriteOncePod PVC access mode during scheduling ([kubernetes/kubernetes103082](https://github.com/kubernetes/kubernetes/pull/103082), [chrishenzie](https://github.com/chrishenzie)) [SIG Apps, CLI, Node, Scheduling and Storage]
- Improved parsing of label selectors ([kubernetes/kubernetes102188](https://github.com/kubernetes/kubernetes/pull/102188), [alculquicondor](https://github.com/alculquicondor)) [SIG API Machinery]
- Kube API server accepts Impersonate-Uid header to impersonate a user with a specific UID, in the same way that you can currently use Impersonate-User, Impersonate-Group and Impersonate-Extra ([kubernetes/kubernetes99961](https://github.com/kubernetes/kubernetes/pull/99961), [margocrawf](https://github.com/margocrawf)) [SIG API Machinery, Auth and Testing]
- Kube-scheduler: a plugin enabled in a v1beta2 configuration file takes precedence over the default configuration for that plugin; this simplifies enabling default plugins with custom configuration without needing to explicitly disable those default plugins. ([kubernetes/kubernetes99582](https://github.com/kubernetes/kubernetes/pull/99582), [chendave](https://github.com/chendave)) [SIG Scheduling]
- Scheduler could be configured to consider new resources beside CPU and memory, GPU for example, for the score plugin of `NodeResourcesBalancedAllocation`. ([kubernetes/kubernetes101946](https://github.com/kubernetes/kubernetes/pull/101946), [chendave](https://github.com/chendave)) [SIG Scheduling]
- Suspend Job feature graduated to beta
Added the "action" label to Job controller sync metrics job_sync_total and job_sync_duration_seconds ([kubernetes/kubernetes102022](https://github.com/kubernetes/kubernetes/pull/102022), [adtac](https://github.com/adtac)) [SIG Apps, Instrumentation and Testing]
- TerminationGracePeriodSeconds on pod specs and container probes should not be negative.
Negative values of TerminationGracePeriodSeconds will be treated as the value `1s` on the delete path.
Immutable field validation will be relaxed in order to update negative values.
In a future release, negative values will not be permitted. ([kubernetes/kubernetes98866](https://github.com/kubernetes/kubernetes/pull/98866), [wzshiming](https://github.com/wzshiming)) [SIG API Machinery, Apps and Node]
- The API documentation for the DaemonSet's spec.updateStrategy.rollingUpdate.maxUnavailable field was corrected to state that the value is rounded up. ([kubernetes/kubernetes101296](https://github.com/kubernetes/kubernetes/pull/101296), [Miciah](https://github.com/Miciah)) [SIG Apps and CLI]
- The CertificateSigningRequest.certificates.k8s.io API supports an optional expirationSeconds field to allow the client to request a particular duration for the issued certificate. The default signer implementations provided by the Kubernetes controller manager will honor this field as long as it does not exceed the --cluster-signing-duration flag. ([kubernetes/kubernetes99494](https://github.com/kubernetes/kubernetes/pull/99494), [enj](https://github.com/enj)) [SIG API Machinery, Apps, Auth, CLI, Instrumentation, Node, Security and Testing]
- The ServiceAppProtocol feature gate has been removed. It reached GA in Kubernetes 1.20. ([kubernetes/kubernetes103190](https://github.com/kubernetes/kubernetes/pull/103190), [robscott](https://github.com/robscott)) [SIG Network]
- Because of the implementation logic of time.Format in golang, the displayed time zone is not consistent ([kubernetes/kubernetes102366](https://github.com/kubernetes/kubernetes/pull/102366), [cndoit18](https://github.com/cndoit18)) [SIG Apps, Auth, Autoscaling, CLI, Cluster Lifecycle, Instrumentation, Network, Node and Testing]
- Endpoint slices mirroring controller no longer mirrors the last-applied-configuration annotation created by kubectl to updated endpoint slices ([kubernetes/kubernetes102731](https://github.com/kubernetes/kubernetes/pull/102731), [sharmarajdaksh](https://github.com/sharmarajdaksh)) [SIG API Machinery, Apps, Cloud Provider, Network, Release, Scheduling, Storage and Testing]
- Exec plugin authors can override default handling of standard input via new interactiveMode kubeconfig field ([kubernetes/kubernetes99310](https://github.com/kubernetes/kubernetes/pull/99310), [ankeesler](https://github.com/ankeesler)) [SIG API Machinery, Auth, CLI and Testing]
- Kube-scheduler component config v1beta2 API available
Three scheduler plugins deprecated (NodeLabel, ServiceAffinity, NodePreferAvoidPods) ([kubernetes/kubernetes99597](https://github.com/kubernetes/kubernetes/pull/99597), [adtac](https://github.com/adtac)) [SIG Scheduling]
- Network Policy EndPort is graduated to beta and is enabled by default ([kubernetes/kubernetes102834](https://github.com/kubernetes/kubernetes/pull/102834), [rikatz](https://github.com/rikatz)) [SIG Network]
- --ssh-user and --ssh-key options are removed. They only functioned on GCE, and only in-tree. Use the apiserver network proxy instead. ([kubernetes/kubernetes102297](https://github.com/kubernetes/kubernetes/pull/102297), [deads2k](https://github.com/deads2k)) [SIG API Machinery, Cloud Provider and Testing]
- Enable MaxSurge for DS by default ([kubernetes/kubernetes101742](https://github.com/kubernetes/kubernetes/pull/101742), [ravisantoshgudimetla](https://github.com/ravisantoshgudimetla)) [SIG Apps and Testing]
- Introduce minReadySeconds api to the StatefulSets. ([kubernetes/kubernetes100842](https://github.com/kubernetes/kubernetes/pull/100842), [ravisantoshgudimetla](https://github.com/ravisantoshgudimetla)) [SIG API Machinery, Apps and Testing]
- Kube-controller-manger: the `--horizontal-pod-autoscaler-use-rest-clients` flag and Heapster support in the horizontal pod autoscaler, deprecated since 1.12, is removed. ([kubernetes/kubernetes90368](https://github.com/kubernetes/kubernetes/pull/90368), [serathius](https://github.com/serathius)) [SIG API Machinery, Apps, Autoscaling, Cloud Provider and Instrumentation]
- The deprecated flag --algorithm-provider has been removed from kube-scheduler. Use instead ComponentConfig to configure the set of enabled plugins ([kubernetes/kubernetes102239](https://github.com/kubernetes/kubernetes/pull/102239), [Haleygo](https://github.com/Haleygo)) [SIG Cloud Provider and Scheduling]
- Add alpha support for HostProcess containers on Windows ([kubernetes/kubernetes99576](https://github.com/kubernetes/kubernetes/pull/99576), [marosset](https://github.com/marosset)) [SIG API Machinery, Apps, Node, Testing and Windows]
- Add three metrics to job controller to monitor if Job works in a healthy condition.
IndexedJob promoted to Beta ([kubernetes/kubernetes101292](https://github.com/kubernetes/kubernetes/pull/101292), [AliceZhang2016](https://github.com/AliceZhang2016)) [SIG Apps, Instrumentation and Testing]
- Corrected the documentation for escaping dollar signs in a container's env, command and args property. ([kubernetes/kubernetes101916](https://github.com/kubernetes/kubernetes/pull/101916), [MartinKanters](https://github.com/MartinKanters)) [SIG Apps]
- Omit comparison with boolean constant ([kubernetes/kubernetes101523](https://github.com/kubernetes/kubernetes/pull/101523), [GreenApple10](https://github.com/GreenApple10)) [SIG CLI and Cloud Provider]
- Pod Affinity NamespaceSelector and the associated CrossNamespaceAffinity quota scope graduated to beta ([kubernetes/kubernetes101496](https://github.com/kubernetes/kubernetes/pull/101496), [ahg-g](https://github.com/ahg-g)) [SIG API Machinery, Apps and Testing]
- V1.Node .status.images[].names is now optional ([kubernetes/kubernetes102159](https://github.com/kubernetes/kubernetes/pull/102159), [roycaihw](https://github.com/roycaihw)) [SIG Apps and Node]
- "Auto" is now a valid value for the `service.kubernetes.io/topology-aware-hints` annotation. ([kubernetes/kubernetes100728](https://github.com/kubernetes/kubernetes/pull/100728), [robscott](https://github.com/robscott)) [SIG Apps, Instrumentation and Network]
- Kube-apiserver: `--service-account-issuer` can be specified multiple times now, to enable non-disruptive change of issuer. ([kubernetes/kubernetes101155](https://github.com/kubernetes/kubernetes/pull/101155), [zshihang](https://github.com/zshihang)) [SIG API Machinery, Auth, Node and Testing]
- New "node-high" priority-level has been added to Suggested API Priority and Fairness configuration. ([kubernetes/kubernetes101151](https://github.com/kubernetes/kubernetes/pull/101151), [mborsz](https://github.com/mborsz)) [SIG API Machinery]
- PodDeletionCost promoted to Beta ([kubernetes/kubernetes101080](https://github.com/kubernetes/kubernetes/pull/101080), [ahg-g](https://github.com/ahg-g)) [SIG Apps]
- SSA treats certain structs as atomic ([kubernetes/kubernetes100684](https://github.com/kubernetes/kubernetes/pull/100684), [Jefftree](https://github.com/Jefftree)) [SIG API Machinery, Auth, Node and Storage]
- Server Side Apply now treats all <Some>Selector fields as atomic (meaning the entire selector is managed by a single writer and updated together), since they contain interrelated and inseparable fields that do not merge in intuitive ways. ([kubernetes/kubernetes97989](https://github.com/kubernetes/kubernetes/pull/97989), [Danil-Grigorev](https://github.com/Danil-Grigorev)) [SIG API Machinery]
- The `pods/ephemeralcontainers` API now returns and expects a `Pod` object instead of `EphemeralContainers`. This is incompatible with the previous alpha-level API. ([kubernetes/kubernetes101034](https://github.com/kubernetes/kubernetes/pull/101034), [verb](https://github.com/verb)) [SIG Apps, Auth, CLI and Testing]
- The pod/eviction subresource now accepts policy/v1 Eviction requests in addition to policy/v1beta1 Eviction requests ([kubernetes/kubernetes100724](https://github.com/kubernetes/kubernetes/pull/100724), [liggitt](https://github.com/liggitt)) [SIG API Machinery, Apps, Architecture, Auth, CLI, Storage and Testing]
- Track ownership of scale subresource for all scalable resources i.e. Deployment, ReplicaSet, StatefulSet, ReplicationController, and Custom Resources. ([kubernetes/kubernetes98377](https://github.com/kubernetes/kubernetes/pull/98377), [nodo](https://github.com/nodo)) [SIG API Machinery and Testing]
- We have added a new Priority & Fairness rule that exempts all probes (/readyz, /healthz, /livez) to prevent
restarting of "healthy" kube-apiserver instance(s) by kubelet. ([kubernetes/kubernetes100678](https://github.com/kubernetes/kubernetes/pull/100678), [tkashem](https://github.com/tkashem)) [SIG API Machinery]