- Added network stats for Windows nodes and pods. ([#70121](https://github.com/kubernetes/kubernetes/pull/70121), [@feiskyer](https://github.com/feiskyer))

*   Added a new --etcd-upgrade keyword to kubeadm upgrade apply. When this keyword is specified, etcd's static pod gets upgraded to the etcd version officially recommended for a target kubernetes release. ([#55010](https://github.com/kubernetes/kubernetes/pull/55010),[ @sbezverk](https://github.com/sbezverk))

- The v1 Endpoints API is now officially deprecated (though still fully supported). The API will not be removed, but all users should use the EndpointSlice API instead. ([#130098](https://github.com/kubernetes/kubernetes/pull/130098), [@danwinship](https://github.com/danwinship)) [SIG...

- Added a flag to kubectl version to detect whether a client/server version mismatch was outside the officially supported range. ([#127365](https://github.com/kubernetes/kubernetes/pull/127365), [@omerap12](https://github.com/omerap12))

### Documentation

- Kubectl describe, get, drain and events have the ability to set chunk-size using --chunk-size flag, which is now officially stable. ([#134481](https://github.com/kubernetes/kubernetes/pull/134481), [@soltysh](https://github.com/soltysh)) [SIG CLI]

### Bug or Regression

- The `NetworkPolicyLegacy` test suite (deprecated in `v1.21`) has now officially been removed in favor of the new table driven e2e tests. ([#118915](https://github.com/kubernetes/kubernetes/pull/118915), [@astoycos](https://github.com/astoycos))

* Disable Docker's health check until we officially support it ([#50796](https://github.com/kubernetes/kubernetes/pull/50796), [@yguo0905](https://github.com/yguo0905))