* 🌐 Update Traditional Chinese translation for `docs/zh-hant/docs/tutorial/index.md`. PR [#13075](https://github.com/fastapi/fastapi/pull/13075) by [@codingjenny](https://github.com/codingjenny).
* 🌐 Add Chinese translation for `docs/zh/docs/tutorial/sql-databases.md`. PR [#13051](https://github.com/fastapi/fastapi/pull/13051) by [@Zhongheng-Cheng](https://github.com/Zhongheng-Cheng).
* 🌐 Update Chinese translation for `docs/zh/docs/tutorial/query-params-str-validations.md`. PR [#12928](https://github.com/fastapi/fastapi/pull/12928) by [@Vincy1230](https://github.com/Vincy1230).
* 🌐 Add Chinese translation for `docs/zh/docs/tutorial/header-param-models.md`. PR [#13040](https://github.com/fastapi/fastapi/pull/13040) by [@Zhongheng-Cheng](https://github.com/Zhongheng-Cheng).