optional k8s.io.apimachinery.pkg.apis.meta.v1.Time lastTransitionTime = 4;

  // reason is a unique, this should be a short, machine understandable string that gives the reason
  // for condition's last transition. If it reports "ResizeStarted" that means the underlying
  // persistent volume is being resized.
  // +optional
  optional string reason = 5;

* When Response is a `metav1.Status`, it is no longer copied into the audit.Event status. Only the "status", "reason" and "code" fields are set.  For example, when we run `kubectl get pods abc`, the API Server returns a status object:
```{"kind":"Status","apiVersion":"v1","metadata":{},"status":"Failure","message":"pods \"abc\" not found","reason":"NotFound","details":{"name":"abc","kind":"pods"},"code":404}```

- Update klog v2.9.0. ([#102332](https://github.com/kubernetes/kubernetes/pull/102332), [@pacoxu](https://github.com/pacoxu))
- Updated the Graceful Node Shutdown Pod termination reason and message.
  Updated the Graceful Node Shutdown Pod rejection reason and message. ([#102840](https://github.com/kubernetes/kubernetes/pull/102840), [@Kissy](https://github.com/Kissy))

- Introduction of the `DisruptionTarget` pod condition type. Its `reason` field indicates the reason for pod termination:
  - PreemptionByKubeScheduler (Pod preempted by kube-scheduler)
  - DeletionByTaintManager (Pod deleted by taint manager due to NoExecute taint)

- Reminder: The labels "failure-domain.beta.kubernetes.io/zone" and "failure-domain.beta.kubernetes.io/region" are deprecated in favor of "topology.kubernetes.io/zone" and "topology.kubernetes.io/region" respectively.  All users of the "failure-domain.beta..." labels should switch to the "topology..." equivalents. ([#96033](https://github.com/kubernetes/kubernetes/pull/96033), [@thockin](https://github.com/thockin))...

        * `beta.kubernetes.io/os`
        * `beta.kubernetes.io/arch`
        * `failure-domain.kubernetes.io/zone`
        * `failure-domain.kubernetes.io/region`
        * `failure-domain.beta.kubernetes.io/zone`
        * `failure-domain.beta.kubernetes.io/region`
        * `[*.]kubelet.kubernetes.io/*`
        * `[*.]node.kubernetes.io/*`

- Added fields `reason` and `fieldPath` into CRD validation rules to allow users to specify reason and field path when validation failed. ([#118041](https://github.com/kubernetes/kubernetes/pull/118041), [@cici37](https://github.com/cici37)) [SIG API Machinery]

- [`KT-57741`](https://youtrack.jetbrains.com/issue/KT-57741) KMP importing an iOS project with Xcode 14.3 fails when importing a pod that depends on `libarclite_iphoneos`
- [`KT-60050`](https://youtrack.jetbrains.com/issue/KT-60050) Log reason why podInstall task is skipped
- [`KT-49430`](https://youtrack.jetbrains.com/issue/KT-49430) Stop invalidating iOS framework generated by KMM module on each Gradle Sync

### Added metrics

- Added metrics `aggregator_openapi_v2_regeneration_count`, `aggregator_openapi_v2_regeneration_gauge` and `apiextension_openapi_v2_regeneration_count` counting the triggering APIService and CRDs and the reason (add, update, delete) when kube-apiserver regenerates the OpenAPI spec. ([#81786](https://github.com/kubernetes/kubernetes/pull/81786), [@sttts](https://github.com/sttts))

    * OverrideSeparator string Delimiter to use to separate region of occurrence, url and signing region for each override Defaults to ","
    * ServiceOverrides string example: s3|region1, https://s3.foo.bar, some signing_region & ec2|region2, https://ec2.foo.bar, signing_region