pkg net/http/httputil, type ProxyRequest struct, In *http.Request #53002
pkg net/http/httputil, type ProxyRequest struct, Out *http.Request #53002
pkg net/http/httputil, type ReverseProxy struct, Rewrite func(*ProxyRequest) #53002
pkg net/http, method (*ResponseController) Flush() error #54136
pkg net/http, method (*ResponseController) Hijack() (net.Conn, *bufio.ReadWriter, error) #54136

Section 10.1.2.2. // K = HMAC (K, V || 0x00 || provided_data) h := hmac.New(hash, K) h.Write(d.V) h.Write([]byte{0x00}) h.Write(entropy) h.Write(nonce) switch s := s.(type) { case plainPersonalization: h.Write(s) case blockAlignedPersonal: l := len(d.V) + 1 + len(entropy) + len(nonce) for _, b := range s { pad000(h, l) h.Write(b) l = len(b) } } K = h.Sum(K[:0]) // V = HMAC (K, V) h = hmac.New(hash, K) h.Write(d.V) d.V = h.Sum(d.V[:0]) // K = HMAC (K, V || 0x01 || provided_data). h.Reset() h.Write(d.V)...

Section 10.1.2.2. // K = HMAC (K, V || 0x00 || provided_data) h := hmac.New(hash, K) h.Write(d.V) h.Write([]byte{0x00}) h.Write(entropy) h.Write(nonce) switch s := s.(type) { case plainPersonalization: h.Write(s) case blockAlignedPersonal: l := len(d.V) + 1 + len(entropy) + len(nonce) for _, b := range s { pad000(h, l) h.Write(b) l = len(b) } } K = h.Sum(K[:0]) // V = HMAC (K, V) h = hmac.New(hash, K) h.Write(d.V) d.V = h.Sum(d.V[:0]) // K = HMAC (K, V || 0x01 || provided_data). h.Reset() h.Write(d.V)...

pkg syscall (freebsd-arm64), func Pipe([]int) error
pkg syscall (freebsd-arm64), func Pipe2([]int, int) error
pkg syscall (freebsd-arm64), func Pread(int, []uint8, int64) (int, error)
pkg syscall (freebsd-arm64), func Pwrite(int, []uint8, int64) (int, error)
pkg syscall (freebsd-arm64), func RawSyscall(uintptr, uintptr, uintptr, uintptr) (uintptr, uintptr, Errno)

### Docs

* 📝 Update GraphQL docs, recommend Strawberry. PR [#3981](https://github.com/tiangolo/fastapi/pull/3981) by [@tiangolo](https://github.com/tiangolo).
* 📝 Re-write and extend Deployment guide: Concepts, Uvicorn, Gunicorn, Docker, Containers, Kubernetes. PR [#3974](https://github.com/tiangolo/fastapi/pull/3974) by [@tiangolo](https://github.com/tiangolo).