This is a SECURITY and feature release for the 1.x series of ReactPHP's HTTP component.

• Security fix: This release fixes a medium severity security issue in ReactPHP's HTTP server component that affects all versions between v0.7.0 and v1.6.0. All users are encouraged to upgrade immediately. Special thanks to Marco Squarcina (TU Wien) for reporting this and working with us to coordinate this release. (CVE-2022-36032 reported by @lavish and fixed by @clue)

• Feature: Improve HTTP server performance by ~20%, reuse syscall values for clock time and socket addresses. (#457 and #467 by @clue)

• Feature: Full PHP 8.2+ compatibility, refactor internal Transaction to avoid assigning dynamic properties. (#459 by @clue and #466 by @WyriHaximus)

• Feature / Fix: Allow explicit Content-Length response header on HEAD requests. (#444 by @mrsimonbennett)

• Minor documentation improvements. (#452 by @clue, #458 by @nhedger, #448 by @jorrit and #446 by @SimonFrings)

• Improve test suite, update to use new reactphp/async package instead of clue/reactphp-block, skip memory tests when lowering memory limit fails and fix legacy HHVM build. (#464 and #440 by @clue and #450 by @SimonFrings)