Features
* ✨ Add support for OpenAPI 3.1.0. PR [9770](https://github.com/tiangolo/fastapi/pull/9770) by [tiangolo](https://github.com/tiangolo).
* New support for documenting **webhooks**, read the new docs here: <a href="https://fastapi.tiangolo.com/advanced/openapi-webhooks/" class="external-link" target="_blank">Advanced User Guide: OpenAPI Webhooks</a>.
* Upgrade OpenAPI 3.1.0, this uses JSON Schema 2020-12.
* Upgrade Swagger UI to version 5.x.x, that supports OpenAPI 3.1.0.
* Updated `examples` field in `Query()`, `Cookie()`, `Body()`, etc. based on the latest JSON Schema and OpenAPI. Now it takes a list of examples and they are included directly in the JSON Schema, not outside. Read more about it (including the historical technical details) in the updated docs: <a href="https://fastapi.tiangolo.com/tutorial/schema-extra-example/" class="external-link" target="_blank">Tutorial: Declare Request Example Data</a>.
* ✨ Add support for `deque` objects and children in `jsonable_encoder`. PR [9433](https://github.com/tiangolo/fastapi/pull/9433) by [cranium](https://github.com/cranium).
Docs
* 📝 Fix form for the FastAPI and friends newsletter. PR [9749](https://github.com/tiangolo/fastapi/pull/9749) by [tiangolo](https://github.com/tiangolo).
Translations
* 🌐 Add Persian translation for `docs/fa/docs/advanced/sub-applications.md`. PR [9692](https://github.com/tiangolo/fastapi/pull/9692) by [mojtabapaso](https://github.com/mojtabapaso).
* 🌐 Add Russian translation for `docs/ru/docs/tutorial/response-model.md`. PR [9675](https://github.com/tiangolo/fastapi/pull/9675) by [glsglsgls](https://github.com/glsglsgls).
Internal
* 🔨 Enable linenums in MkDocs Material during local live development to simplify highlighting code. PR [9769](https://github.com/tiangolo/fastapi/pull/9769) by [tiangolo](https://github.com/tiangolo).
* ⬆ Update httpx requirement from <0.24.0,>=0.23.0 to >=0.23.0,<0.25.0. PR [9724](https://github.com/tiangolo/fastapi/pull/9724) by [dependabot[bot]](https://github.com/apps/dependabot).
* ⬆ Bump mkdocs-material from 9.1.16 to 9.1.17. PR [9746](https://github.com/tiangolo/fastapi/pull/9746) by [dependabot[bot]](https://github.com/apps/dependabot).
* 🔥 Remove missing translation dummy pages, no longer necessary. PR [9751](https://github.com/tiangolo/fastapi/pull/9751) by [tiangolo](https://github.com/tiangolo).
* ⬆ [pre-commit.ci] pre-commit autoupdate. PR [9259](https://github.com/tiangolo/fastapi/pull/9259) by [pre-commit-ci[bot]](https://github.com/apps/pre-commit-ci).
* ✨ Add Material for MkDocs Insiders features and cards. PR [9748](https://github.com/tiangolo/fastapi/pull/9748) by [tiangolo](https://github.com/tiangolo).
* 🔥 Remove languages without translations. PR [9743](https://github.com/tiangolo/fastapi/pull/9743) by [tiangolo](https://github.com/tiangolo).
* ✨ Refactor docs for building scripts, use MkDocs hooks, simplify (remove) configs for languages. PR [9742](https://github.com/tiangolo/fastapi/pull/9742) by [tiangolo](https://github.com/tiangolo).
* 🔨 Add MkDocs hook that renames sections based on the first index file. PR [9737](https://github.com/tiangolo/fastapi/pull/9737) by [tiangolo](https://github.com/tiangolo).
* 👷 Make cron jobs run only on main repo, not on forks, to avoid error notifications from missing tokens. PR [9735](https://github.com/tiangolo/fastapi/pull/9735) by [tiangolo](https://github.com/tiangolo).
* 🔧 Update MkDocs for other languages. PR [9734](https://github.com/tiangolo/fastapi/pull/9734) by [tiangolo](https://github.com/tiangolo).
* 👷 Refactor Docs CI, run in multiple workers with a dynamic matrix to optimize speed. PR [9732](https://github.com/tiangolo/fastapi/pull/9732) by [tiangolo](https://github.com/tiangolo).
* 🔥 Remove old internal GitHub Action watch-previews that is no longer needed. PR [9730](https://github.com/tiangolo/fastapi/pull/9730) by [tiangolo](https://github.com/tiangolo).
* ⬆️ Upgrade MkDocs and MkDocs Material. PR [9729](https://github.com/tiangolo/fastapi/pull/9729) by [tiangolo](https://github.com/tiangolo).
* 👷 Build and deploy docs only on docs changes. PR [9728](https://github.com/tiangolo/fastapi/pull/9728) by [tiangolo](https://github.com/tiangolo).