using COS images must be moved to the new directory, and installation processes must be updated with the new path. ([#58171](https://github.com/kubernetes/kubernetes/pull/58171), [@verult](https://github.com/verult))

* Default values differ between the Kubelet's componentconfig (config file) API and the Kubelet's command line. Be sure to review the default values when migrating to using a config file. For example, the authz mode is set to "AlwaysAllow" if you rely on the command line,...

- Communication between the etcd server and kube-apiserver on master is now overridden to use HTTPS instead of HTTP when mTLS is enabled in GCE. ([#74690](https://github.com/kubernetes/kubernetes/pull/74690), [@wenjiaswe](htt...

If a container runtime does not support the `v1` API, Kubernetes will fall back to the `v1alpha2` implementation.
There is no intermediate action required by end-users, because `v1` and `v1alpha2` do not differ in their implementation.
It is likely that `v1alpha2` will be removed in one of the future Kubernetes releases to be able to develop `v1`.

### Structured logging graduate to Beta

* The kubeadm config option `API.ControlPlaneEndpoint` has been extended to take an optional port, which may differ from the apiserver's bind port. ([#62314](https://github.com/kubernetes/kubernetes/pull/62314), [@rjosephwright](https://github.com/rjosephwright))

</p>

<pre>
lock(l)
defer unlock(l)  // unlocking happens before surrounding function returns

// prints 3 2 1 0 before surrounding function returns
for i := 0; i &lt;= 3; i++ {
	defer fmt.Print(i)
}

// f returns 42
func f() (result int) {
	defer func() {
		// result is accessed after it was set to 6 by the return statement
		result *= 7

pkg go/types, method (*Interface) Embedded //deprecated
pkg image, var ZP //deprecated
pkg image, var ZR //deprecated
pkg image/jpeg, type Reader //deprecated
pkg net, type Dialer struct, Cancel //deprecated
pkg net, type Dialer struct, DualStack //deprecated
pkg net/http, method (*Transport) CancelRequest //deprecated
pkg net/http, type CloseNotifier //deprecated
pkg net/http, type ProtocolError //deprecated

* Fix kubeadm reset crictl command ([#55717](https://github.com/kubernetes/kubernetes/pull/55717), [@runcom](https://github.com/runcom))
* Fix code-generators to produce correct code when GroupName, PackageName and/or GoName differ. ([#55614](https://github.com/kubernetes/kubernetes/pull/55614), [@sttts](https://github.com/sttts))