* Support configuring the Azure load balancer idle connection timeout for services ([#66045](https://github.com/kubernetes/kubernetes/pull/66045), [@cpuguy83](https://github.com/cpuguy83))
* Let service controller retry creating load balancer when persistUpdate failed due to conflict. ([#68087](https://github.com/kubernetes/kubernetes/pull/68087), [@grayluck](https://github.com/grayluck))

		if len(k) > len(ReservedMetadataPrefixLower) && strings.EqualFold(k[:len(ReservedMetadataPrefixLower)], ReservedMetadataPrefixLower) {
			// Skip tierFVID, tierFVMarker keys; it's used
			// only for creating free-version.
			switch k {
			case tierFVIDKey, tierFVMarkerKey:
				continue
			}
		}
		if equals(k, "x-amz-storage-class") && string(v) == storageclass.STANDARD {
			continue
		}
		switch {

_2018-11-16_

 *  **OkHttp now supports TLS 1.3.** This requires either Conscrypt or Java 11+.

 *  **Proxy authenticators are now asked for preemptive authentication.** OkHttp will now request
    authentication credentials before creating TLS tunnels through HTTP proxies (HTTP `CONNECT`).
    Authenticators should identify preemptive authentications by the presence of a challenge whose
    scheme is "OkHttp-Preemptive".

    awaitTerminationUninterruptibly(executor);
    assertTrue(executor.isTerminated());
    assertInterrupted();
  }

  /**
   * Wrapper around {@link Stopwatch} which also contains an "expected completion time." Creating a
   * {@code Completion} starts the underlying stopwatch.
   */
  private static final class Completion {
    final Stopwatch stopwatch;
    final long expectedCompletionWaitMillis;

### SIG Apps

- The service controller will now retry creating the load balancer when `persistUpdate` fails due to conflict. ([#68087](https://github.com/kubernetes/kubernetes/pull/68087), [@grayluck](https://github.com/grayluck))

- Fixed a bug in the Job controller that could result in creating unnecessary Pods for Jobs already marked as finished (either successful or failed). ([#130333](https://github.com/kubernetes/kubernetes/pull/130333), [@kmala](https://github.com/kmala)) [SIG Apps and Testing]

and similar tools also use an **internal cache** when building the image, if a file hasn't changed since the last time building the container image, then it will **reuse the same layer** created the last time, instead of copying the file again and creating a new layer from scratch.

Just avoiding the copy of files doesn't necessarily improve things too much, but because it used the cache for that step, it can **use the cache for the next step**. For example, it could use the cache for the...

你可能會用到編輯器，請確保設定它使用你建立的相同虛擬環境（它可能會自動偵測到），以便你可以獲得自動完成和內嵌錯誤提示。

例如：

* [VS Code](https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment)
* [PyCharm](https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html)

/// tip

通常你只需要在建立虛擬環境時執行此操作**一次**。

///

## 退出虛擬環境 { #deactivate-the-virtual-environment }

當你完成工作後，你可以**退出**虛擬環境。

<div class="termy">

你可能会用到编辑器，请确保配置它使用与你创建的相同的虚拟环境（它可能会自动检测到），以便你可以获得自动补全和内联错误提示。

例如：

* [VS Code](https://code.visualstudio.com/docs/python/environments#_select-and-activate-an-environment)
* [PyCharm](https://www.jetbrains.com/help/pycharm/creating-virtual-environment.html)

/// tip | 提示

通常你只需要在创建虚拟环境时执行此操作**一次**。

///

## 退出虚拟环境 { #deactivate-the-virtual-environment }

当你完成工作后，你可以**退出**虚拟环境。

<div class="termy">

* Automated cherry pick of [#49259](https://github.com/kubernetes/kubernetes/pull/49259): update json-patch to fix nil value issue when creating mergepatch ([#59324](https://github.com/kubernetes/kubernetes/pull/59324), [@yue9944882](https://github.com/yue9944882))