## Pre-pre requisite

- A working knowledge of MinIO codebase and its various components.
- A working knowledge of AWS S3 API behaviors and corner cases.

## Pre-requisite for backporting any fixes

Fixes that are allowed a backport must satisfy any of the following criteria's:

これを行うには、`return`の代わりに`yield`を使い、その後に追加のステップを書きます。

/// tip | 豆知識

`yield`は必ず一度だけ使用するようにしてください。

///

/// info | 情報

これを動作させるには、**Python 3.7** 以上を使用するか、**Python 3.6** では"backports"をインストールする必要があります:

```
pip install async-exit-stack async-generator
```

  * Docker version 1.12.1 [has been validated](https://github.com/kubernetes/kubernetes/issues/28698) through the Kubernetes docker automated validation framework as has Docker version 1.12.3
 *  Docker 1.10.3 contains [backports provided by RedHat](https://github.com/docker/docker/compare/v1.10.3...runcom:docker-1.10.3-stable) for known issues
  * Docker versions as old as may 1.9.1 work with [known issues](CHANGELOG.md#191) but this is not guaranteed

| [Conscrypt]      | ✅      | ✅           | [BoringSSL]     | Activated if Conscrypt is first registered provider.         |
| [OpenJSSE]       |         | ✅           | [OpenJDK]       | OpenJDK backport.                                            |
| [Corretto]       | ✅      | ✅           | [OpenSSL]       | Amazon's high-performance provider. [Tracking bug.][bug5592] |

All providers support HTTP/1.1 and TLSv1.2.

 * Contains helper methods for string operations, including backported JDK functionality
 * for compatibility with older Java versions.
 */
public final class StringUtil {

    /**
     *
     */
    private StringUtil() {
    }

    /**
     * Implementation of {@link java.lang.String#join} backported for JDK7.
     *
     * @param delimiter the separator to use between elements

    return super.writeReplace();
  }

  @GwtIncompatible
  @J2ktIncompatible
  /*
   * The mainline copy of ImmutableMapValues doesn't produce this serialized form anymore, though
   * the backport does. For now, we're keeping the class declaration in *both* flavors so that both
   * flavors can read old data or data from the other flavor. However, we strongly discourage

    * Leaked File descriptors ([#275](https://github.com/docker/containerd/issues/275))
    * Additional memory overhead per container ([#21737](https://github.com/docker/docker/issues/21737))
  * Docker 1.10.3 contains [backports provided by RedHat](https://github.com/docker/docker/compare/v1.10.3...runcom:docker-1.10.3-stable) for known issues
  * Support for Docker version 1.9.x has been removed
* rkt version 1.23.0+

        * Additional memory overhead per container ([#21737](https://github.com/kubernetes/kubernetes/pull/21737))

    * Docker 1.10.3 contains [backports provided by RedHat](https://github.com/docker/docker/compare/v1.10.3...runcom:docker-1.10.3-stable) for known issues

   * ClassValueValidator.
   *
   * Fortunately, we get pretty good coverage "by accident": We run all these tests against the
   * *backport*, where ClassValueValidator is not present.
   */

### Features

* ⬆Increase supported version of aiofiles to suppress warnings. PR [#2899](https://github.com/tiangolo/fastapi/pull/2899) by [@SnkSynthesis](https://github.com/SnkSynthesis).
* ➖ Do not require backports in Python >= 3.7. PR [#1880](https://github.com/tiangolo/fastapi/pull/1880) by [@FFY00](https://github.com/FFY00).