v1.10.0

• Feature: Use Promise v3 template types.
  (#67 by @clue and #63 and #64 by @WyriHaximus)

• Minor documentation improvements.
  (#59 by @nhedger)

• Improve test suite, avoid unhandled promise rejections and report failed assertions.
  (#66 and #62 by @clue and #61 by @WyriHaximus)

v1.9.0

• Feature: Improve forward compatibility with upcoming Promise v3 API.
  (#54 and #55 by @clue)

• Minor documentation improvements for upcoming Promise v3.
  (#58 by @clue and #56 by @SimonFrings)

• Improve test suite, fix legacy HHVM build by downgrading Composer.
  (#57 by @SimonFrings)

v1.8.0

• Feature: Add new sleep() function and deprecate resolve() and reject() functions.
  (#51 by @clue)

  // deprecated
  React\Promise\Timer\resolve($time);
  React\Promise\Timer\reject($time);
  
  // new
  React\Promise\Timer\sleep($time);

• Feature: Support PHP 8.1 release.
  (#50 by @Thomas-Gelf, #52 by @clue and #48 by @SimonFrings)

• Improve API documentation and add parameter types and return types.
  (#49 by @clue and #47 by @SimonFrings)

v1.7.0

A major new feature release, see release announcement.

• Feature: Simplify usage by supporting new default loop.
  (#46 by @clue)

  // old (still supported)
  $promise = timeout($promise, $time, $loop);
  $promise = resolve($time, $loop);
  $promise = reject($time, $loop);
  
  // new (using default loop)
  $promise = timeout($promise, $time);
  $promise = resolve($time);
  $promise = reject($time);

• Improve test suite, use GitHub actions for continuous integration (CI),
  update PHPUnit config, run tests on PHP 8 and add full core team to the license.
  (#43 by @WyriHaximus, #44 and #45 by @SimonFrings)

v1.6.0

• Feature: Forward compatibility with react/promise v3.
  (#37 by @WyriHaximus)

• Improve test suite and add .gitattributes to exclude dev files from exports.
  Run tests on PHPUnit 9 and PHP 7.4 and clean up test suite.
  (#38 by @WyriHaximus, #39 by @reedy, #41 by @clue and #42 by @SimonFrings)

v1.5.1

• Fix: Typo in readme
  (#35 by @aak74)

• Improvement: Only include functions file when functions aren't defined
  (#36 by @Niko9911)

v1.5.0

• Feature: Improve memory consumption by cleaning up garbage references to pending promise without canceller.
  (#34 by @clue)

v1.4.0

• Feature: Improve memory consumption by cleaning up garbage references.
  (#33 by @clue)

v1.3.0

• Feature: Improve memory consumption by cleaning up unneeded references.
  (#32 by @clue)

v1.2.1

• README improvements
  (#28 by @jsor)

• Improve test suite by adding forward compatiblity with PHPUnit 6 and
  fix test suite forward compatibility with upcoming EventLoop releases
  (#30 and #31 by @clue)