* ⬆️ Upgrade Starlette version to `>=0.27.0` for a security release. PR [#9541](https://github.com/tiangolo/fastapi/pull/9541) by [@tiangolo](https://github.com/tiangolo).
* 🐛 Fix `flask.escape` warning for internal tests. PR [#9468](https://github.com/tiangolo/fastapi/pull/9468) by [@samuelcolvin](https://github.com/samuelcolvin).
* ✅ Refactor 2 tests, for consistency and simplification. PR [#9504](https://github.com/tiangolo/fastapi/pull/9504) by [@tiangolo](https://github.com/tiangolo).
* ✅ Refactor OpenAPI tests, prepare for Pydantic v2. PR [#9503](https://github.com/tiangolo/fastapi/pull/9503) by [@tiangolo](https://github.com/tiangolo).