* 🔒️ Add `strict_content_type` checking for JSON requests. PR [#14978](https://github.com/fastapi/fastapi/pull/14978) by [@tiangolo](https://github.com/tiangolo).
### Internal
* ⬆ Bump flask from 3.1.2 to 3.1.3. PR [#14949](https://github.com/fastapi/fastapi/pull/14949) by [@dependabot[bot]](https://github.com/apps/dependabot).