* Calico has been updated to v2.5, RBAC added, and is now automatically scaled when GCE clusters are resized. ([#51237](https://github.com/kubernetes/kubernetes/pull/51237), [@gunjan5](https://github.com/gunjan5))

 [grpc_http2]: https://github.com/grpc/grpc/blob/master/doc/PROTOCOL-HTTP2.md
 [https_server_sample]: https://github.com/square/okhttp/blob/master/samples/guide/src/main/java/okhttp3/recipes/HttpsServer.java
 [jetty_8_252]: https://webtide.com/jetty-alpn-java-8u252/
 [junit_5_rules]: https://junit.org/junit5/docs/current/user-guide/#migrating-from-junit4-rulesupport

- Fix: azure disk resize error if source does not exist ([#93011](https://github.com/kubernetes/kubernetes/pull/93011), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider]
- Fix: detach azure disk broken on Azure Stack ([#94885](https://github.com/kubernetes/kubernetes/pull/94885), [@andyzhangx](https://github.com/andyzhangx)) [SIG Cloud Provider]

### SIG Cluster Lifecycle

  * kubeadm: The `:Etcd` struct has been refactored in the v1alpha2 API. All the options now reside under either `.Etcd.Local` or `.Etcd.External`. Automatic conversions from the v1alpha1 API are supported. ([#64066](https://github.com/kubernetes/kubernetes/pull/64066), [@luxas](https://github.com/luxas))

## Changelog since v1.16.3

### Other notable changes

* Fixed issue with addon-resizer using deprecated extensions APIs ([#85793](https://github.com/kubernetes/kubernetes/pull/85793), [@bskiba](https://github.com/bskiba))

## Changelog since v1.17.13

## Changes by Kind

### Bug or Regression

- An issues preventing volume expand controller to annotate the PVC with `volume.kubernetes.io/storage-resizer` when the PVC StorageClass is already updated to the out-of-tree provisioner is now fixed. ([#94489](https://github.com/kubernetes/kubernetes/pull/94489), [@ialidzhikov](https://github.com/ialidzhikov)) [SIG API Machinery, Apps and Storage]

* Calico has been updated to v2.5, RBAC added, and is now automatically scaled when GCE clusters are resized. ([#51237](https://github.com/kubernetes/kubernetes/pull/51237), [@gunjan5](https://github.com/gunjan5))

## Changelog since v1.18.10

## Changes by Kind

### Bug or Regression

- An issues preventing volume expand controller to annotate the PVC with `volume.kubernetes.io/storage-resizer` when the PVC StorageClass is already updated to the out-of-tree provisioner is now fixed. ([#94489](https://github.com/kubernetes/kubernetes/pull/94489), [@ialidzhikov](https://github.com/ialidzhikov)) [SIG API Machinery, Apps and Storage]

    assertThat(response.code).isEqualTo(200)
    assertContent("Body", response)
    response.close()
    assertThat(server.requestCount).isEqualTo(2)
  }

  @Test
  fun readTimeouts() {
    // This relies on the fact that MockWebServer doesn't close the
    // connection after a response has been sent. This causes the client to
    // try to read more bytes than are sent, which results in a timeout.
    server.enqueue(

### Feature

- Add NeedResize function to kubernetes/mount-utils, user can call this function to determine if fs need to be resized ([#101253](https://github.com/kubernetes/kubernetes/pull/101253), [@AndyXiangLi](https://github.com/AndyXiangLi)) [SIG Storage]
- Base image updates to mitigate kube-proxy and etcd container image CVEs