* 🌐 Update Chinese translation for `docs/zh/docs/tutorial/path-params.md`. PR [#3479](https://github.com/tiangolo/fastapi/pull/3479) by [@jaystone776](https://github.com/jaystone776).
* 🌐 Update Chinese translation for `docs/tutorial/body-fields.md`. PR [#3496](https://github.com/tiangolo/fastapi/pull/3496) by [@jaystone776](https://github.com/jaystone776).
* 🌐 Update Chinese translation for `docs/tutorial/body-fields.md`. PR [#3496](https://github.com/tiangolo/fastapi/pull/3496) by [@jaystone776](https://github.com/jaystone776).
* 🌐 Update Chinese translation for `docs/tutorial/extra-models.md`. PR [#3497](https://github.com/tiangolo/fastapi/pull/3497) by [@jaystone776](https://github.com/jaystone776).
* 🌐 Update Chinese translation for `docs/tutorial/extra-models.md`. PR [#3497](https://github.com/tiangolo/fastapi/pull/3497) by [@jaystone776](https://github.com/jaystone776).
* 🌐 Add Japanese translation for `docs/ja/docs/tutorial/metadata.md`. PR [#2667](https://github.com/tiangolo/fastapi/pull/2667) by [@tokusumi](https://github.com/tokusumi).
* 🌐 Add Japanese translation for `docs/ja/docs/tutorial/metadata.md`. PR [#2667](https://github.com/tiangolo/fastapi/pull/2667) by [@tokusumi](https://github.com/tokusumi).