#### Auth

- The Rancher credential provider has now been removed. This only affects you if you are using the downstream Rancher distro. ([#77099](https://github.com/kubernetes/kubernetes/pull/77099), [@dims](https://github.com/dims))


#### AWS

	* Avoid panic if route53 fields are nil ([#44380](https://github.com/kubernetes/kubernetes/pull/44380), [@justinsb](https://github.com/justinsb))


#### Credential provider
* add rancher credential provider ([#40160](https://github.com/kubernetes/kubernetes/pull/40160), [@wlan0](https://github.com/wlan0))

#### Information for Kubernetes clients (openapi, swagger, client-go)
* Features:

* **[alpha]** New Bootstrap Token authentication and management method. Works well with kubeadm. kubeadm now supports managing tokens, including time based expiration, after the cluster is launched.  See [kubeadm reference docs](https://kubernetes.io/docs/admin/kubeadm/#manage-tokens) for details.
* **[alpha]** Adds a new cloud-controller-manager binary that may be used for testing the new out-of-core cloudprovider flow.