- It is now possible to upload certificates required to join a new control-plane to kubeadm-certs secret using the flag `--experimental-upload-certs` on `init` or upload-certs phase. ([#73907](https://github.com/kubernetes/kubernetes/pull/73907), [@yagonobre](https://github.com/yagonobre))

  - `kubeadm config upload` has been deprecated, as its replacement is now graduated. Please use `kubeadm init phase upload-config` instead. ([#77946](https://github.com/kubernetes/kubernetes/pull/77946), [@Klaven](htt...

seconds`, `apiserver_encryption_config_controller_automatic_reload_failures_total`, `apiserver_encryption_config_controller_automatic_reload_success_total`, `apiserver_encryption_config_controller_automatic_reload_last_timestamp_seconds`.
  
  Fixed bug to surface events for the following metrics: `apiserver_encryption_config_controller_automatic_reload_failures_total`, `apiserver_encryption_config_controller_automatic_reload_last_timestamp_seconds`, `apiserver_encryption_config_contro...

- KMS: added validation for duplicate kms config name when auto reload is enabled. If you enabled automatic reload of encryption configuration with API server flag `--encryption-provider-config-automatic-reload`, ensure all the KMS provider names (v1 and v2) in the encryption configuration are unique. ([#113697](https://github.com/kubernetes/kubernetes/pull/113697), [@aramase](https:/...

- Fixed bug to surface events for the following metrics: apiserver_encryption_config_controller_automatic_reload_failures_total, apiserver_encryption_config_controller_automatic_reload_last_timestamp_seconds, apiserver_encryption_config_controller_automatic_reload_success_total ([#120544](https://github.com/kubernetes/kubernetes/pull/120544), [@ritazh](https://github.com/ritazh)) [SIG API Machinery, Auth and Testing]

    * deleteOptions.orphanDependents is going to be deprecated in 1.7. Please use deleteOptions.propagationPolicy instead.
* force unlock rbd image if the image is not used ([#41597](https://github.com/kubernetes/kubernetes/pull/41597), [@rootfs](https://github.com/rootfs))

#### Load Balancing
* [stable] Source IP Preservation - change Cloud load-balancer strategy to health-checks and respond to health check only on nodes that host pods for the service. See [Create an External Load Balancer - Preserving the client source IP](https://kubernetes.io/docs/tasks/access-application-cluster/create-external-load-balancer/#preserving-the-client-source-ip).

of an interface type or of elements of a composite type remains unchanged:
</p>

<pre>
// A Mutex is a data type with two methods, Lock and Unlock.
type Mutex struct         { /* Mutex fields */ }
func (m *Mutex) Lock()    { /* Lock implementation */ }
func (m *Mutex) Unlock()  { /* Unlock implementation */ }

// NewMutex has the same composition as Mutex but its method set is empty.
type NewMutex Mutex

## 0.15.0

* Add support for multiple file uploads (as a single form field). New docs at: [Multiple file uploads](https://fastapi.tiangolo.com/tutorial/request-files/#multiple-file-uploads). PR [#158](https://github.com/tiangolo/fastapi/pull/158).

- Fix a bug in kube-proxy that caused it to crash when using load balancers with a different IP family ([#87117](https://github.com/kubernetes/kubernetes/pull/87117), [@aojea](https://github.com/aojea)) [SIG Network]