diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 75d8208f..85aad9c5 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -7,10 +7,12 @@ on:
 jobs:
   PHPUnit:
     name: PHPUnit (PHP ${{ matrix.php }})
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     strategy:
       matrix:
         php:
+          - 8.3
+          - 8.2
           - 8.1
           - 8.0
           - 7.4
@@ -23,11 +25,16 @@ jobs:
           - 5.4
           - 5.3
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v4
       - uses: shivammathur/setup-php@v2
         with:
           php-version: ${{ matrix.php }}
           coverage: xdebug
+          ini-file: development
+          ini-values: disable_functions='' # do not disable PCNTL functions on PHP < 8.1
+          extensions: sockets, pcntl
+        env:
+          fail-fast: true # fail step if any extension can not be installed
       - run: composer install
       - run: vendor/bin/phpunit --coverage-text --exclude-group internet
         if: ${{ matrix.php >= 7.3 }}
@@ -36,12 +43,16 @@ jobs:
 
   PHPUnit-hhvm:
     name: PHPUnit (HHVM)
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-22.04
     continue-on-error: true
     steps:
-      - uses: actions/checkout@v2
-      - uses: azjezz/setup-hhvm@v1
+      - uses: actions/checkout@v4
+      - run: cp "$(which composer)" composer.phar && ./composer.phar self-update --2.2 # downgrade Composer for HHVM
+      - name: Run hhvm composer.phar require --dev react/async:^2 react/promise:^2 phpunit/phpunit:^5.7 # downgrade Async and Promise for HHVM
+        uses: docker://hhvm/hhvm:3.30-lts-latest
         with:
-          version: lts-3.30
-      - run: hhvm $(which composer) install
-      - run: hhvm vendor/bin/phpunit --exclude-group internet
+          args: hhvm composer.phar require --dev react/async:^2 react/promise:^2 phpunit/phpunit:^5.7
+      - name: Run hhvm vendor/bin/phpunit --exclude-group internet
+        uses: docker://hhvm/hhvm:3.30-lts-latest
+        with:
+          args: hhvm vendor/bin/phpunit --exclude-group internet
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c588ac1f..f5f711e2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,34 @@
 # Changelog
 
+## 1.4.0 (2023-07-11)
+
+A major new feature release, see [**release announcement**](https://clue.engineering/2023/announcing-reactphp-promise-v3).
+
+*   Feature: Add support for new Promise v3 release.
+    (#464 and #524 by @clue)
+
+*   Feature: Support PHP 8.2 release.
+    (#491 by @Nielsvanpach)
+
+*   Improve test suite, update dependencies and report failed assertions.
+    (#462 and #501 by @clue and #466 and #492 by @SimonFrings)
+
+## 1.3.0 (2022-07-11)
+
+A major new feature release, see [**release announcement**](https://clue.engineering/2022/announcing-reactphp-async).
+
+*   Feature: Add new Async component to core components.
+    (#458 by @clue)
+
+*   Feature: Support PHP 8.1 release.
+    (#451 by @clue)
+
+*   Improve documentation, update HTTP server example for reactphp/http v1.6.0 release.
+    (#449 and #459 by @clue and #457 by @nhedger)
+
+*   Improve test suite, support PHPUnit 9 and update dependencies to avoid skipping tests.
+    (#450 and #454 by @clue and #455 by @SimonFrings)
+
 ## 1.2.0 (2021-07-11)
 
 A major new feature release, see [**release announcement**](https://clue.engineering/2021/announcing-reactphp-default-loop).
diff --git a/README.md b/README.md
index adfd7c3d..f8e1d0f2 100644
--- a/README.md
+++ b/README.md
@@ -11,7 +11,7 @@
 <br>
 
 <div align="center">
-    <a href="https://github.com/reactphp/reactphp/actions"><img src="https://github.com/reactphp/reactphp/workflows/CI/badge.svg" alt="Build Status"></a>
+    <a href="https://github.com/reactphp/reactphp/actions"><img src="https://github.com/reactphp/reactphp/actions/workflows/ci.yml/badge.svg" alt="Build Status"></a>
 </div>
 
 <br>
@@ -23,6 +23,13 @@ client/server and interaction with processes. Third-party libraries can use thes
 components to create async network clients/servers and more.
 
 ```php
+<?php
+
+// $ composer require react/http react/socket # install example using Composer
+// $ php example.php # run example on command line, requires no additional web server
+
+require __DIR__ . '/vendor/autoload.php';
+
 $server = new React\Http\HttpServer(function (Psr\Http\Message\ServerRequestInterface $request) {
     return React\Http\Message\Response::plaintext(
         "Hello World!\n"
@@ -83,6 +90,9 @@ Node.js (V8).
   Promises/A implementation for PHP.
   [Read the documentation](https://github.com/reactphp/promise)
 
+* **Async**
+  Async utilities and fibers for ReactPHP.
+  [Read the documentation](https://github.com/reactphp/async)
 
 ## Network Components
 
@@ -94,16 +104,10 @@ Node.js (V8).
   Event-driven UDP client and server sockets for ReactPHP.
   [Read the documentation](https://github.com/reactphp/datagram)
 
-## Protocol Components
-
 * **HTTP**
-  Event-driven, streaming plaintext HTTP and secure HTTPS server for ReactPHP.
+  Event-driven, streaming HTTP client and server implementation for ReactPHP.
   [Read the documentation](https://github.com/reactphp/http)
 
-* **HTTPClient**
-  Event-driven, streaming HTTP client for ReactPHP.
-  [Read the documentation](https://github.com/reactphp/http-client)
-
 * **DNS**
   Async DNS resolver for ReactPHP.
   [Read the documentation](https://github.com/reactphp/dns)
@@ -126,7 +130,6 @@ Node.js (V8).
   The missing link between Promise-land and Stream-land, built on top of ReactPHP.
   [Read the documentation](https://github.com/reactphp/promise-stream)
 
-
 ## Built with ReactPHP
 
 * **Thruway**
@@ -199,14 +202,14 @@ This means that instead of installing something like a "ReactPHP framework", you
 pick only the components that you need.
 
 This project follows [SemVer](https://semver.org/) for all its stable components.
-The recommended way to install these components is [through Composer](https://getcomposer.org).
-[New to Composer?](http://getcomposer.org/doc/00-intro.md)
+The recommended way to install these components is [through Composer](https://getcomposer.org/).
+[New to Composer?](https://getcomposer.org/doc/00-intro.md)
 
 For example, this may look something like this:
 
 ```bash
 # recommended install: pick required components
-$ composer require react/event-loop react/http
+composer require react/event-loop react/http
 ```
 
 As an alternative, we also provide a meta package that will install all stable
@@ -216,10 +219,10 @@ installed like this:
 
 ```bash
 # quick protoyping only: install all stable components
-$ composer require react/react:^1.2
+composer require react/react:^1.4
 ```
 
-For more details, check out [ReactPHP's homepage](https://reactphp.org) for
+For more details, check out [ReactPHP's homepage](https://reactphp.org/) for
 quickstart examples and usage details.
 
 See also the combined [changelog for all ReactPHP components](https://reactphp.org/changelog.html)
@@ -266,16 +269,16 @@ Thank you!
 ## Tests
 
 To run the test suite, you first need to clone this repo and then install all
-dependencies [through Composer](https://getcomposer.org):
+dependencies [through Composer](https://getcomposer.org/):
 
 ```bash
-$ composer install
+composer install
 ```
 
 To run the test suite, go to the project root and run:
 
 ```bash
-$ php vendor/bin/phpunit
+vendor/bin/phpunit
 ```
 
 The test suite also contains a number of functional integration tests that rely
@@ -284,7 +287,7 @@ these are skipped by default during CI runs. If you also do not want to run thes
 they can simply be skipped like this:
 
 ```bash
-$ php vendor/bin/phpunit --exclude-group internet
+vendor/bin/phpunit --exclude-group internet
 ```
 
 ## License
diff --git a/composer.json b/composer.json
index 1db55ded..3f752a63 100644
--- a/composer.json
+++ b/composer.json
@@ -9,20 +9,20 @@
     },
     "require": {
         "php": ">=5.3.8",
+        "react/async": "^4.3 || ^3.2 || ^2.2",
         "react/cache": "^1.1",
-        "react/dns": "^1.9",
-        "react/event-loop": "^1.3",
-        "react/http": "^1.6",
-        "react/promise": "^2.9 || ^1.2",
-        "react/promise-stream": "^1.3",
-        "react/promise-timer": "^1.8",
-        "react/socket": "^1.11",
-        "react/stream": "^1.2"
+        "react/dns": "^1.13",
+        "react/event-loop": "^1.5",
+        "react/http": "^1.11",
+        "react/promise": "^3.2 || ^2.10 || ^1.3",
+        "react/promise-stream": "^1.7",
+        "react/promise-timer": "^1.11",
+        "react/socket": "^1.15",
+        "react/stream": "^1.4"
     },
     "require-dev": {
-        "clue/block-react": "^1.5",
         "clue/stream-filter": "^1.3",
-        "phpunit/phpunit": "^9.5 || ^5.7 || ^4.8.35"
+        "phpunit/phpunit": "^9.6 || ^7.5 || ^5.7 || ^4.8.36"
     },
     "config": {
         "preferred-install": {
diff --git a/phpunit.xml.dist b/phpunit.xml.dist
index 15445651..d5d26a2e 100644
--- a/phpunit.xml.dist
+++ b/phpunit.xml.dist
@@ -1,17 +1,17 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<!-- PHPUnit configuration file with new format for PHPUnit 9.5+ -->
+<!-- PHPUnit configuration file with new format for PHPUnit 9.6+ -->
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.5/phpunit.xsd"
+         xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/9.6/phpunit.xsd"
          bootstrap="tests/bootstrap.php"
          cacheResult="false"
          colors="true"
          convertDeprecationsToExceptions="true">
     <testsuites>
         <testsuite name="ReactPHP Test Suite">
+            <!-- explicitly run EventLoop tests first to avoid resetting default loop -->
+            <directory>./vendor/react/event-loop/tests/</directory>
             <directory>./vendor/react/*/tests/</directory>
-            <!-- temporarily skip broken und unneeded tests, see https://github.com/reactphp/http/pull/440 -->
-            <exclude>./vendor/react/http/tests/HttpServerTest.php</exclude>
         </testsuite>
     </testsuites>
     <coverage>
@@ -19,4 +19,12 @@
             <directory>./vendor/react/*/src/</directory>
         </include>
     </coverage>
+    <php>
+        <ini name="error_reporting" value="-1" />
+        <!-- Evaluate assertions, requires running with "php -d zend.assertions=1 vendor/bin/phpunit" -->
+        <!-- <ini name="zend.assertions" value="1" /> -->
+        <ini name="assert.active" value="1" />
+        <ini name="assert.exception" value="1" />
+        <ini name="assert.bail" value="0" />
+    </php>
 </phpunit>
diff --git a/phpunit.xml.legacy b/phpunit.xml.legacy
index 8a0d9b7f..2cd2f9b1 100644
--- a/phpunit.xml.legacy
+++ b/phpunit.xml.legacy
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 
-<!-- PHPUnit configuration file with old PHPUnit format for PHP < 7.3 -->
+<!-- PHPUnit configuration file with old format for legacy PHPUnit -->
 <phpunit xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
          xsi:noNamespaceSchemaLocation="https://schema.phpunit.de/4.8/phpunit.xsd"
          bootstrap="tests/bootstrap.php"
@@ -8,8 +8,6 @@
     <testsuites>
         <testsuite name="ReactPHP Test Suite">
             <directory>./vendor/react/*/tests/</directory>
-            <!-- temporarily skip broken und unneeded tests, see https://github.com/reactphp/http/pull/440 -->
-            <exclude>./vendor/react/http/tests/HttpServerTest.php</exclude>
         </testsuite>
     </testsuites>
     <filter>
@@ -17,4 +15,12 @@
             <directory>./vendor/react/*/src/</directory>
         </whitelist>
     </filter>
+    <php>
+        <ini name="error_reporting" value="-1" />
+        <!-- Evaluate assertions, requires running with "php -d zend.assertions=1 vendor/bin/phpunit" -->
+        <!-- <ini name="zend.assertions" value="1" /> -->
+        <ini name="assert.active" value="1" />
+        <ini name="assert.exception" value="1" />
+        <ini name="assert.bail" value="0" />
+    </php>
 </phpunit>
diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index db5b8cac..2af732cf 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -2,7 +2,9 @@
 
 $autoload = require __DIR__ . '/../vendor/autoload.php';
 
-// register all `autoload-dev` paths from React's components
+assert($autoload instanceof Composer\Autoload\ClassLoader);
+
+// register all `autoload-dev` paths from ReactPHP's components
 foreach (glob(__DIR__ . '/../vendor/react/*/composer.json') as $b) {
     $config = json_decode(file_get_contents($b), true);
 
@@ -15,17 +17,3 @@
         }
     }
 }
-
-// load all legacy test bootstrap scripts from React's components
-foreach (glob(__DIR__ . '/../vendor/react/*/tests/bootstrap.php') as $b) {
-    // skip legacy react/promise for now and use manual autoload path from bootstrap config
-    // @link https://github.com/reactphp/promise/blob/1.x/tests/bootstrap.php
-    // @link https://github.com/reactphp/promise/blob/2.x/tests/bootstrap.php
-    if (strpos($b, 'react/promise/tests/bootstrap.php') !== false) {
-        $autoload->add('React\Promise', __DIR__ . '/../vendor/react/promise/tests');
-        $autoload->addPsr4('React\\Promise\\', __DIR__ . '/../vendor/react/promise/tests');
-        continue;
-    }
-
-    include $b;
-}