* Now FastAPI checks, by default, that JSON requests have a `Content-Type` header with a valid JSON value, like `application/json`, and rejects requests that don't.
    * If the clients for your app don't send a valid `Content-Type` header you can disable this with `strict_content_type=False`.

### Other (Cleanup or Flake)

- Reverts the EventedPLEG feature (beta, but disabled by default) back to alpha for a known issue ([#122719](https://github.com/kubernetes/kubernetes/pull/122719), [@pacoxu](https://github.com/pacoxu)) [SIG Node]

## Dependencies

pkg bytes, func Map(func(int32) int32, []uint8) []uint8
pkg bytes, func NewBuffer([]uint8) *Buffer
pkg bytes, func NewBufferString(string) *Buffer
pkg bytes, func NewReader([]uint8) *Reader
pkg bytes, func Repeat([]uint8, int) []uint8
pkg bytes, func Replace([]uint8, []uint8, []uint8, int) []uint8
pkg bytes, func Runes([]uint8) []int32
pkg bytes, func Split([]uint8, []uint8) [][]uint8

pkg regexp/syntax, const ErrInvalidPerlOp = "invalid or unsupported Perl syntax"
pkg regexp/syntax, const ErrInvalidRepeatOp = "invalid nested repetition operator"
pkg regexp/syntax, const ErrInvalidRepeatSize = "invalid repeat count"
pkg regexp/syntax, const ErrInvalidUTF8 = "invalid UTF-8"
pkg regexp/syntax, const ErrMissingBracket = "missing closing ]"
pkg regexp/syntax, const ErrMissingParen = "missing closing )"