* Use protobufs by default to communicate with apiserver (still store JSONs in etcd) ([#25738](https://github.com/kubernetes/kubernetes/pull/25738), [@wojtek-t](https://github.com/wojtek-t))

👆 🔜 👀 🕳 💖:

```JSON
{"item_id": 5, "q": "somequery"}
```

## 🎓 🛠️ 🩺

- Kubeadm: enhanced the "patches" functionality to be able to patch kubelet config files containing `v1beta1.KubeletConfiguration`. The new patch target is called `kubeletconfiguration` (e.g. patch file `kubeletconfiguration+json.json`).This makes it possible to apply node specific KubeletConfiguration options during `init`, `join` and `upgrade`, while the main `KubeletConfiguration` that is passed to `init` as part of the `--config` file can still act as the global stored in...

- E2e framework: added `--report-complete-ginkgo` and `--report-complete-junit` parameters. They work like `ginkgo --json-report <report dir>/ginkgo/report.json --junit-report <report dir>/ginkgo/report.xml`. ([#115678](https://github.com/kubernetes/kubernetes/pull/115678), [@pohly](https://github.com/pohly)) [SIG Testing]

MinIO requires PostgreSQL version 9.5 or above. MinIO uses the [`INSERT ON CONFLICT`](https://www.postgresql.org/docs/9.5/static/sql-insert.html#SQL-ON-CONFLICT) (aka UPSERT) feature, introduced in version 9.5 and the [JSONB](https://www.postgresql.org/docs/9.4/static/datatype-json.html) data-type introduced in version 9.4.

### Step 2: Add PostgreSQL endpoint to MinIO

- Improved how the API server responds to **list** requests where the response format negotiates to JSON. 
List responses in JSON are marshalled one element at a time, drastically reducing the memory needed to serve 

- github.com/go-ini/ini: [v1.67.0](https://github.com/go-ini/ini/tree/v1.67.0)
- github.com/gobwas/glob: [v0.2.3](https://github.com/gobwas/glob/tree/v0.2.3)
- github.com/goccy/go-json: [v0.10.2](https://github.com/goccy/go-json/tree/v0.10.2)
- github.com/google/go-containerregistry: [v0.20.1](https://github.com/google/go-containerregistry/tree/v0.20.1)
- github.com/gorilla/mux: [v1.8.1](https://github.com/gorilla/mux/tree/v1.8.1)

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### (No, really, you MUST do this before you upgrade)

Before upgrading to Kubernetes 1.11, you must keep the following in mind:

https://qiita.com/hikarut/items/b178af2e2440c67c6ac4 title: フロントエンド開発者向けのDockerによるPython開発環境構築 - author: '@angel_katayoku' author_link: https://qiita.com/angel_katayoku link: https://qiita.com/angel_katayoku/items/8a458a8952f50b73f420 title: FastAPIでPOSTされたJSONのレスポンスbodyを受け取る - author: '@angel_katayoku' author_link: https://qiita.com/angel_katayoku link: https://qiita.com/angel_katayoku/items/4fbc1a4e2b33fa2237d2 title: FastAPIをMySQLと接続してDockerで管理してみる - author: '@angel_katayoku' author_link: https://qiit...