add release-notes

Author: sweikenb

CHANGELOG.md

@@ -1,12 +1,32 @@
 # Changelog
 
+## Release [v7.0.0](https://github.com/sweikenb/pcntl/releases/tag/v7.0.0)
+
+**Bugfixes**
+
+- Proper signal handling and propagation #11
+
+**Features**
+
+- Introduced a `wait()`-function for the `ProcessQueue` itself which should be used when working with queues instead
+  of using the `wait()` method of the `ProcessManager` itself.
+- Adding PHP 8.3 support to phpunit test-matrix
+
+**Breaking Changes**
+
+- NOTE: The POSIX signal handling fix might affect the order in which callbacks will be called.
+  For the most part, this should not change the functionality of your application, but just to make sure nothing breaks
+  unexpectedly, this is the reason for the major version bump instead of just a feature-release.
+
+* * *
+
 ## Release [v6.0.0](https://github.com/sweikenb/pcntl/releases/tag/v6.0.0)
 
 **Bugfixes**
 
 - Sending IPC messages will now honor the returned bytes of the written buffer correctly
 
-- **Features**
+**Features**
 
 - `ProcessOutput` allows to modify the console output beside the default `STDOUT` and `STDERR`
 - Unit and functional tests added using PHPUnit and GitHub actions

docs/src/common-pitfalls-and-workarounds.md

@@ -30,7 +30,7 @@ $results = $connection->getReults();
 $connection->close();
 foreach ($results as $result) {
     $pm->runProcess(function () use ($result) {
-        // close connection
+        // re-open connection
         $connection = new Connection();
 
         // TODO process data

docs/src/installation.md

@@ -6,6 +6,11 @@ Install the latest version using [composer](https://getcomposer.org/):
 composer require sweikenb/pcntl
 ```
 
+## Changelog
+
+Please consult the [CHANGELOG.md](https://github.com/sweikenb/pcntl/blob/main/CHANGELOG.md) for latest update
+information.
+
 ## System Requirements
 
 This library requires at least **PHP v8.2** with the following extensions enabled: