* StatefulSet: The deprecated `pod.alpha.kubernetes.io/initialized` annotation for interrupting the StatefulSet Pod management is now ignored. StatefulSets with this annotation set to `true` or with no value will behave just as they did in previous versions. Dormant StatefulSets with the annotation set to `false` will become active after upgrading.

- Improved parsing of label selectors ([#102188](https://github.com/kubernetes/kubernetes/pull/102188), [@alculquicondor](https://github.com/alculquicondor)) [SIG API Machinery]
- Introduce `minReadySeconds` api to the `StatefulSets`. ([#100842](https://github.com/kubernetes/kubernetes/pull/100842), [@ravisantoshgudimetla](https://github.com/ravisantoshgudimetla))

- `CSIMigrationvSphere` feature is now enabled by default.
   ([#103523](https://github.com/kubernetes/kubernetes/pull/103523), [@divyenpatel](https://github.com/divyenpatel))
- `MaxUnavailable` for `StatefulSets`, allows faster `RollingUpdate` by taking down more than 1 pod at a time.
  The number of pods you want to take down during a `RollingUpdate` is configurable using `maxUnavailable` parameter.

- Make STS available replicas optional again. ([#109241](https://github.com/kubernetes/kubernetes/pull/109241), [@ravisantoshgudimetla](https://github.com/ravisantoshgudimetla))

  // More info: https://kubernetes.io/docs/concepts/containers/images
  // This field is optional to allow higher level config management to default or override
  // container images in workload controllers like Deployments and StatefulSets.
  // +optional
  optional string image = 2;

  // Entrypoint array. Not executed within a shell.
  // The container image's ENTRYPOINT is used if this is not provided.

	"command":                  "Entrypoint array. Not executed within a shell. The container image's ENTRYPOINT is used if this is not provided. Variable references $(VAR_NAME) are expanded using the container's environment. If a variable...

  // More info: https://kubernetes.io/docs/concepts/containers/images
  // This field is optional to allow higher level config management to default or override
  // container images in workload controllers like Deployments and StatefulSets.
  // +optional
  optional string image = 2;

  // Entrypoint array. Not executed within a shell.
  // The container image's ENTRYPOINT is used if this is not provided.

	// More info: https://kubernetes.io/docs/concepts/containers/images
	// This field is optional to allow higher level config management to default or override
	// container images in workload controllers like Deployments and StatefulSets.
	// +optional
	Image string `json:"image,omitempty" protobuf:"bytes,2,opt,name=image"`
	// Entrypoint array. Not executed within a shell.
	// The container image's ENTRYPOINT is used if this is not provided.

            "type": "string"
          },
          "imagePullPolicy": {

- Fixed a `v1.28.0` regression where `kube-controller-manager` can crash when `StatefulSet` with `Parallel` policy and PVC labels are scaled up. ([#121142](https://github.com/kubernetes/kubernetes/pull/121142), [@aleksandra-malinowska](https://github.com/aleksandra-malinowska))