### Federation
* The --dns-provider argument of 'kubefed init' is now mandatory and does not default to `google-clouddns`. To initialize a Federation control plane with Google Cloud DNS, use the following invocation: 'kubefed init --dns-provider=google-clouddns' ([#42092](https://github.com/kubernetes/kubernetes/pull/42092), [@marun](https://github.com/marun))

- Ingress:
  - `spec.ingressClassName` replaces the deprecated `kubernetes.io/ingress.class` annotation, and allows associating an Ingress object with a particular controller.

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* Introduces status conditions to the HorizontalPodAutoscaler in autoscaling/v2alpha1, indicating the current status of a given HorizontalPodAutoscaler, and why it is or is not scaling. ([#46550](https://github.com/kubernetes/kubernetes/pull/46550), [@DirectXMan12](https://github.com/DirectXMan12))

    /**
     * Get the value for the key 'ldap.attr.destinationIndicator'. <br>
     * The value is, e.g. destinationIndicator <br>
     * comment: LDAP attribute for destination indicator.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getLdapAttrDestinationIndicator();

    /**

- New "field_validation_request_duration_seconds" metric, measures how long requests take, indicating the value of the fieldValidation query parameter and whether or not server-side field validation is enabled on the apiserver ([#109120](https://github.com/kubernetes/kubernetes/pull/109120), [@kevindelgado](https://github.com/kevindelgado))

* Introduces status conditions to the HorizontalPodAutoscaler in autoscaling/v2alpha1, indicating the current status of a given HorizontalPodAutoscaler, and why it is or is not scaling. ([#46550](https://github.com/kubernetes/kubernetes/pull/46550), [@DirectXMan12](https://github.com/DirectXMan12))

- Kubeadm: Fixed an issue where etcd member promotion failed with an error indicating the member was already promoted. ([#130782](https://github.com/kubernetes/kubernetes/pull/130782), [@BernardMC](https://github.com/BernardMC))

- Fixed the format of the error indicating that a user does not have permission on the object referenced by paramRef in ValidatingAdmissionPolicyBinding. ([#124653](https://github.com/kubernetes/kubernetes/pull/124653), [@m1kola](https://github.com/m1kola))

- cpumanager will now rollback state if updateContainerCPUSet failed, indicating that the container start failed. This change will prevent CPU leaks. ([#67430](https://github.com/kubernetes/kubernetes/pull/67430), [@choury](https://github.com/choury))