- Users should not rely on unsupported CRON_TZ variable when specifying schedule, both the API server and cronjob controller will emit warnings pointing to https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/ containing explanation ([#106455](https://github.com/kubernetes/kubernetes/pull/106455), [@soltysh](https://github.com/soltysh)) [SIG Apps]

- EndpointSlice controller is now less likely to emit FailedToUpdateEndpointSlices events. ([#99345](https://github.com/kubernetes/kubernetes/pull/99345), [@robscott](https://github.com/robscott)) [SIG Apps and Network]

- Added `cronjobs.batch` to "all", so that `kubectl get all` returns them.

- Added flag `--include-uninitialized` to `kubectl annotate`, `apply`, `edit-last-applied`,
  `delete`, `describe`, `edit`, `get`, `label,` and `set`. `--include-uninitialized=true` makes
  kubectl commands apply to uninitialized objects, which by default are ignored

- Count pod overhead against an entity's ResourceQuota ([#99600](https://github.com/kubernetes/kubernetes/pull/99600), [@gjkim42](https://github.com/gjkim42)) [SIG API Machinery and Node]
- EndpointSlice controller is now less likely to emit FailedToUpdateEndpointSlices events. ([#100146](https://github.com/kubernetes/kubernetes/pull/100146), [@robscott](https://github.com/robscott)) [SIG Apps and Network]

- EndpointSlice controller is now less likely to emit FailedToUpdateEndpointSlices events. ([#100113](https://github.com/kubernetes/kubernetes/pull/100113), [@robscott](https://github.com/robscott)) [SIG Apps and Network]

kind: KubeProxyConfiguration
**featureGates:**
**  SupportIPVSProxyMode: true**
```

If your cluster was installed by kubeadm, you should edit the `featureGates` field in the `kubeadm-config` ConfigMap. You can do this using `kubectl -n kube-system edit cm kubeadm-config` before upgrading. For example:

kubeadm-config Before:

```
apiVersion: v1
kind: ConfigMap
metadata:
  name: kubeadm-config

* `kubectl edit` now edits objects exactly as they were retrieved from the API. This allows using `kubectl edit` with third-party resources and extension API servers. Because client-side conversion is no longer done, the `--output-version` option is deprecated for `kubectl edit`. To edit using a particular API version, fully-qualify the resource, version, and group used to fetch the object (for example,...

* Fixes ability for admin/edit/view users to see controller revisions, needed for kubectl rollout commands ([#70699](https://github.com/kubernetes/kubernetes/pull/70699), [@liggitt](https://github.com/liggitt))

- The `system:aggregate-to-edit` role no longer includes write access to the Endpoints API. For new Kubernetes 1.22 clusters, the `edit` and `admin` roles will no longer include that access in newly created Kubernetes 1.22 clusters. This will have no affect on existing clusters upgrading to Kubernetes 1.22. To retain write access to Endpoints in the aggregated `edit` and `admin` roles for newly created 1.22 clusters, refer to https://github.com...

- Kubeadm: do not exit with an error if the "super-admin.conf" cannot create a ClusterRoleBinding for the "cluster-admin" user, due to the ClusterRoleBInding already existing. ([#125821](https://github.com/kubernetes/kubernetes/pull/125821), [@neolit123](https://github.com/neolit123))...