diff --git a/src/Symfony/Bridge/PhpUnit/CHANGELOG.md b/src/Symfony/Bridge/PhpUnit/CHANGELOG.md
index 6da53d30a0..2808ad0c50 100644
--- a/src/Symfony/Bridge/PhpUnit/CHANGELOG.md
+++ b/src/Symfony/Bridge/PhpUnit/CHANGELOG.md
@@ -25,7 +25,7 @@ CHANGELOG
 -----
 
  * added `ClassExistsMock`
- * bumped PHP version from 5.3.3 to 5.5.9 
+ * bumped PHP version from 5.3.3 to 5.5.9
  * split simple-phpunit bin into php file with code and a shell script
 
 4.1.0
diff --git a/src/Symfony/Bridge/PhpUnit/Legacy/PolyfillAssertTrait.php b/src/Symfony/Bridge/PhpUnit/Legacy/PolyfillAssertTrait.php
index 69a01d2927..6b4941d542 100644
--- a/src/Symfony/Bridge/PhpUnit/Legacy/PolyfillAssertTrait.php
+++ b/src/Symfony/Bridge/PhpUnit/Legacy/PolyfillAssertTrait.php
@@ -13,6 +13,7 @@ namespace Symfony\Bridge\PhpUnit\Legacy;
 
 use PHPUnit\Framework\Constraint\IsEqual;
 use PHPUnit\Framework\Constraint\LogicalNot;
+use PHPUnit\Framework\Constraint\RegularExpression;
 use PHPUnit\Framework\Constraint\StringContains;
 use PHPUnit\Framework\Constraint\TraversableContains;
 
@@ -276,6 +277,17 @@ trait PolyfillAssertTrait
         static::assertFalse(is_readable($filename), $message ? $message : "Failed asserting that $filename is not readable.");
     }
 
+    /**
+     * @param string $filename
+     * @param string $message
+     *
+     * @return void
+     */
+    public static function assertIsNotReadable($filename, $message = '')
+    {
+        static::assertNotIsReadable($filename, $message);
+    }
+
     /**
      * @param string $filename
      * @param string $message
@@ -300,6 +312,17 @@ trait PolyfillAssertTrait
         static::assertFalse(is_writable($filename), $message ? $message : "Failed asserting that $filename is not writable.");
     }
 
+    /**
+     * @param string $filename
+     * @param string $message
+     *
+     * @return void
+     */
+    public static function assertIsNotWritable($filename, $message = '')
+    {
+        static::assertNotIsWritable($filename, $message);
+    }
+
     /**
      * @param string $directory
      * @param string $message
@@ -324,6 +347,17 @@ trait PolyfillAssertTrait
         static::assertFalse(is_dir($directory), $message ? $message : "Failed asserting that $directory does not exist.");
     }
 
+    /**
+     * @param string $directory
+     * @param string $message
+     *
+     * @return void
+     */
+    public static function assertDirectoryDoesNotExist($directory, $message = '')
+    {
+        static::assertDirectoryNotExists($directory, $message);
+    }
+
     /**
      * @param string $directory
      * @param string $message
@@ -348,6 +382,17 @@ trait PolyfillAssertTrait
         static::assertNotIsReadable($directory, $message);
     }
 
+    /**
+     * @param string $directory
+     * @param string $message
+     *
+     * @return void
+     */
+    public static function assertDirectoryIsNotReadable($directory, $message = '')
+    {
+        static::assertDirectoryNotIsReadable($directory, $message);
+    }
+
     /**
      * @param string $directory
      * @param string $message
@@ -372,6 +417,17 @@ trait PolyfillAssertTrait
         static::assertNotIsWritable($directory, $message);
     }
 
+    /**
+     * @param string $directory
+     * @param string $message
+     *
+     * @return void
+     */
+    public static function assertDirectoryIsNotWritable($directory, $message = '')
+    {
+        static::assertDirectoryNotIsWritable($directory, $message);
+    }
+
     /**
      * @param string $filename
      * @param string $message
@@ -396,6 +452,17 @@ trait PolyfillAssertTrait
         static::assertFalse(file_exists($filename), $message ? $message : "Failed asserting that $filename does not exist.");
     }
 
+    /**
+     * @param string $filename
+     * @param string $message
+     *
+     * @return void
+     */
+    public static function assertFileDoesNotExist($filename, $message = '')
+    {
+        static::assertFileNotExists($filename, $message);
+    }
+
     /**
      * @param string $filename
      * @param string $message
@@ -420,6 +487,17 @@ trait PolyfillAssertTrait
         static::assertNotIsReadable($filename, $message);
     }
 
+    /**
+     * @param string $filename
+     * @param string $message
+     *
+     * @return void
+     */
+    public static function assertFileIsNotReadable($filename, $message = '')
+    {
+        static::assertFileNotIsReadable($filename, $message);
+    }
+
     /**
      * @param string $filename
      * @param string $message
@@ -443,4 +521,39 @@ trait PolyfillAssertTrait
         static::assertFileExists($filename, $message);
         static::assertNotIsWritable($filename, $message);
     }
+
+    /**
+     * @param string $filename
+     * @param string $message
+     *
+     * @return void
+     */
+    public static function assertFileIsNotWritable($filename, $message = '')
+    {
+        static::assertFileNotIsWritable($filename, $message);
+    }
+
+    /**
+     * @param string $pattern
+     * @param string $string
+     * @param string $message
+     *
+     * @return void
+     */
+    public static function assertMatchesRegularExpression($pattern, $string, $message = '')
+    {
+        static::assertRegExp($pattern, $string, $message);
+    }
+
+    /**
+     * @param string $pattern
+     * @param string $string
+     * @param string $message
+     *
+     * @return void
+     */
+    public static function assertDoesNotMatchRegularExpression($pattern, $string, $message = '')
+    {
+        static::assertNotRegExp($message, $string, $message);
+    }
 }
diff --git a/src/Symfony/Bridge/PhpUnit/bin/simple-phpunit.php b/src/Symfony/Bridge/PhpUnit/bin/simple-phpunit.php
index f14759f5fa..39b61ca5e1 100644
--- a/src/Symfony/Bridge/PhpUnit/bin/simple-phpunit.php
+++ b/src/Symfony/Bridge/PhpUnit/bin/simple-phpunit.php
@@ -284,6 +284,16 @@ EOPHP
     chdir($oldPwd);
 }
 
+// Create a symlink with a predictable path pointing to the currently used version.
+// This is useful for static analytics tools such as PHPStan having to load PHPUnit's classes
+// and for other testing libraries such as Behat using PHPUnit's assertions.
+chdir($PHPUNIT_DIR);
+if (file_exists('phpunit')) {
+    @unlink('phpunit');
+}
+@symlink($PHPUNIT_VERSION_DIR, 'phpunit');
+chdir($oldPwd);
+
 if ($PHPUNIT_VERSION < 8.0) {
     $argv = array_filter($argv, function ($v) use (&$argc) {
         if ('--do-not-cache-result' !== $v) {