* 🌐 Add Chinese translation for Tutorial - Bigger Applications - Multiple Files. PR [#2453](https://github.com/tiangolo/fastapi/pull/2453) by [@waynerv](https://github.com/waynerv).
* 🌐 Add Chinese translation for Tutorial - Security - Security Intro. PR [#2443](https://github.com/tiangolo/fastapi/pull/2443) by [@waynerv](https://github.com/waynerv).
* 🌐 Add Chinese translation for Tutorial - Header Parameters. PR [#2412](https://github.com/tiangolo/fastapi/pull/2412) by [@maoyibo](https://github.com/maoyibo).
* 🌐 Add Chinese translation for Tutorial - Extra Data Types. PR [#2410](https://github.com/tiangolo/fastapi/pull/2410) by [@maoyibo](https://github.com/maoyibo).