# Release 2.12.0

### Breaking Changes

*   Build, Compilation and Packaging

* 📝 Update docs, remove references to removed `pydantic.Required` in `docs/en/docs/tutorial/query-params-str-validations.md`. PR [#10469](https://github.com/tiangolo/fastapi/pull/10469) by [@yogabonito](https://github.com/yogabonito).
* ✏️ Fix typo in `docs/en/docs/reference/index.md`. PR [#10467](https://github.com/tiangolo/fastapi/pull/10467) by [@tarsil](https://github.com/tarsil).

pointing at the same data as x, // with any trailing partial word removed. func words(x []byte) []uintptr { n := uintptr(len(x)) / wordSize if n == 0 { // Avoid creating a *uintptr that refers to data smaller than a uintptr; // see issue 59334. return nil } return unsafe.Slice((*uintptr)(unsafe.Pointer(&x[0])), n) } func xorLoop[T byte | uintptr](dst, x, y []T) { x = x[:len(dst)] // remove bounds check in loop y = y[:len(dst)] // remove bounds check in loop for i := range dst { dst[i] = x[i] ^ y[i]...

pointing at the same data as x, // with any trailing partial word removed. func words(x []byte) []uintptr { n := uintptr(len(x)) / wordSize if n == 0 { // Avoid creating a *uintptr that refers to data smaller than a uintptr; // see issue 59334. return nil } return unsafe.Slice((*uintptr)(unsafe.Pointer(&x[0])), n) } func xorLoop[T byte | uintptr](dst, x, y []T) { x = x[:len(dst)] // remove bounds check in loop y = y[:len(dst)] // remove bounds check in loop for i := range dst { dst[i] = x[i] ^ y[i]...