* ✨ Add support for `FrozenSet` in parameters (e.g. query). PR [#2938](https://github.com/tiangolo/fastapi/pull/2938) by [@juntatalor](https://github.com/juntatalor).
* ✨ Allow custom middlewares to raise `HTTPException`s and propagate them. PR [#2036](https://github.com/tiangolo/fastapi/pull/2036) by [@ghandic](https://github.com/ghandic).

invisible to -race, -asan, and -msan, // but now they are in Go and incur significant overhead in those modes. // To bring the old performance back, we mark all functions that loop // over Nat words with //go:norace. Because //go:norace does not // propagate across inlining, we must also mark functions that inline // //go:norace functions - specifically, those that inline add, addMulVVW, // assign, cmpGeq, rshift1, and sub. // choice represents a constant-time boolean. The value of choice is always //...

invisible to -race, -asan, and -msan, // but now they are in Go and incur significant overhead in those modes. // To bring the old performance back, we mark all functions that loop // over Nat words with //go:norace. Because //go:norace does not // propagate across inlining, we must also mark functions that inline // //go:norace functions - specifically, those that inline add, addMulVVW, // assign, cmpGeq, rshift1, and sub. // choice represents a constant-time boolean. The value of choice is always //...