#### client-go
* The main repository does not keep multiple releases of clientsets anymore. Please find previous releases at https://github.com/kubernetes/client-go ([#38154](https://github.com/kubernetes/kubernetes/pull/38154), [@caesarxuchao](https://github.com/caesarxuchao))

    assertThat(startupTimes.get(a)).isAtLeast(150);
    // Service b startup takes at least 353 millis, but starting the timer is delayed by at least
    // 150 milliseconds. so in a perfect world the timing would be 353-150=203ms, but since either
    // of our sleep calls can be arbitrarily delayed we should just assert that there is a time
    // recorded.
    assertThat(startupTimes.get(b)).isNotNull();
  }

* Fix nil pointer dereference in test framework ([#37583](https://github.com/kubernetes/kubernetes/pull/37583), [@mtaufen](https://github.com/mtaufen))
* Kubelet: Add image cache. ([#38375](https://github.com/kubernetes/kubernetes/pull/38375), [@Random-Liu](https://github.com/Random-Liu))
* Collect logs for dead kubelets too ([#37671](https://github.com/kubernetes/kubernetes/pull/37671), [@mtaufen](https://github.com/mtaufen))

## 2. Protocol Specification Reference

- **MS-SMB2 Section 3.2.4.23**: FSCTL_QUERY_NETWORK_INTERFACE_INFO
- **MS-SMB2 Section 3.2.5.14.8**: Sending an SMB2 IOCTL Request for FSCTL_QUERY_NETWORK_INTERFACE_INFO
- **MS-SMB2 Section 3.1.5.3**: Receiving an SMB_COM_NEGOTIATE
- **MS-SMB2 Section 3.2.4.1.6**: Alternative Channel Creation
- **MS-SMB2 Section 3.3.5.15.12**: Channel Binding

## 3. Multi-Channel Architecture

### 3.1 Channel States
```java

- Promoted the `MaxUnavailableStatefulSet` feature to beta and enabling it by default. ([#133153](https://github.com/kubernetes/kubernetes/pull/133153), [@helayoty](https://github.com/helayoty)) [SIG API Machinery and Apps]

- Adds `create ingress` command to `kubectl` ([#78153](https://github.com/kubernetes/kubernetes/pull/78153), [@amimof](https://github.com/amimof)) [SIG CLI and Network]

    * The default node cidr mask size for IPv6 was 24 which is now changed to 64.
* The following information is available through environment variables: ([#83123](https://github.com/kubernetes/kubernetes/pull/83123), [@aramase](https://github.com/aramase))
    * status.podIPs - the pod's IP addresses

- Optimize kubectl version help info ([#88313](https://github.com/kubernetes/kubernetes/pull/88313), [@zhouya0](https://github.com/zhouya0)) [SIG CLI]

* 🌐 Add Chinese translation for `docs/zh/docs/external-links.md`. PR [#3833](https://github.com/tiangolo/fastapi/pull/3833) by [@jaystone776](https://github.com/jaystone776).

### Other notable changes