diff --git a/Neos.Cache/Classes/Backend/FileBackend.php b/Neos.Cache/Classes/Backend/FileBackend.php
index ec4711633e..e56526c83c 100644
--- a/Neos.Cache/Classes/Backend/FileBackend.php
+++ b/Neos.Cache/Classes/Backend/FileBackend.php
@@ -245,11 +245,15 @@ public function findIdentifiersByTag(string $searchedTag): array
      * specified tags.
      *
      * @param string[] $tags The tags to search for
-     * @return string[] An array with identifiers of all matching entries. An empty array if no entries matched
+     * @return string[] An array with identifiers of all matching entries. An empty array if no entries matched or no tags were provided
      * @api
      */
     public function findIdentifiersByTags(array $tags): array
     {
+        if (empty($tags)) {
+            return [];
+        }
+
         $entryIdentifiers = [];
         $now = $_SERVER['REQUEST_TIME'];
         $cacheEntryFileExtensionLength = strlen($this->cacheEntryFileExtension);
diff --git a/Neos.Eel/Resources/Private/PHP/php-peg/Parser.php b/Neos.Eel/Resources/Private/PHP/php-peg/Parser.php
index a30fdbcd3d..cf92c682e3 100644
--- a/Neos.Eel/Resources/Private/PHP/php-peg/Parser.php
+++ b/Neos.Eel/Resources/Private/PHP/php-peg/Parser.php
@@ -9,6 +9,11 @@
  *  the bracket if a failed match + restore has moved the current position backwards - so we have to check that too.
  */
 class ParserRegexp {
+    protected $parser = null;
+    protected $rx = '';
+    protected $matches = null;
+    protected $match_pos = null;
+    protected $check_pos = null;
 
 	function __construct($parser, $rx) {
 		$this->parser = $parser;
@@ -50,6 +55,10 @@ function match() {
  *   for result construction and building
  */
 class Parser {
+    public $string = '';
+    public $pos = 0;
+    protected $depth = 0;
+    protected $regexps = [];
 
 	function __construct($string) {
 		$this->string = $string;
@@ -211,6 +220,9 @@ function store(&$result, $subres, $storetag = NULL) {
  * @author Hamish Friedlander
  */
 class Packrat extends Parser {
+    protected $packstatebase = '';
+    protected $packstate = [];
+    protected $packres = [];
 
 	function __construct($string) {
 		parent::__construct($string);
diff --git a/Neos.Flow/Classes/ResourceManagement/Streams/ResourceStreamWrapper.php b/Neos.Flow/Classes/ResourceManagement/Streams/ResourceStreamWrapper.php
index d7690d1ab2..559ffd6b3a 100644
--- a/Neos.Flow/Classes/ResourceManagement/Streams/ResourceStreamWrapper.php
+++ b/Neos.Flow/Classes/ResourceManagement/Streams/ResourceStreamWrapper.php
@@ -475,7 +475,11 @@ public function resourceStat()
      */
     public function pathStat($path, $flags)
     {
-        return @stat($this->evaluateResourcePath($path));
+        $evaluatedResourcePath = $this->evaluateResourcePath($path);
+        if (is_resource($evaluatedResourcePath)) {
+            return @fstat($evaluatedResourcePath);
+        }
+        return @stat($evaluatedResourcePath);
     }
 
     /**
diff --git a/Neos.Flow/Classes/Security/Exception/InvalidHashException.php b/Neos.Flow/Classes/Security/Exception/InvalidHashException.php
index f2d6286ba1..bef7ed180a 100644
--- a/Neos.Flow/Classes/Security/Exception/InvalidHashException.php
+++ b/Neos.Flow/Classes/Security/Exception/InvalidHashException.php
@@ -18,4 +18,5 @@
  */
 class InvalidHashException extends \Neos\Flow\Security\Exception
 {
+    protected $statusCode = 400;
 }
diff --git a/Neos.Flow/Documentation/TheDefinitiveGuide/PartIII/Routing.rst b/Neos.Flow/Documentation/TheDefinitiveGuide/PartIII/Routing.rst
index 0f8a804249..0120098f95 100644
--- a/Neos.Flow/Documentation/TheDefinitiveGuide/PartIII/Routing.rst
+++ b/Neos.Flow/Documentation/TheDefinitiveGuide/PartIII/Routing.rst
@@ -58,7 +58,7 @@ But let's start with an easy example:
 	``name`` is optional, but it's recommended to set a name for all routes to make debugging
 	easier.
 
-If you insert these lines at the beginning of the file ``Configurations/Routes.yaml``,
+If you insert these lines at the beginning of the file ``Configuration/Routes.yaml``,
 the ``indexAction`` of the ``StandardController`` in your *My.Demo* package will be called
 when you open up the homepage of your Flow installation (``http://localhost/``).
 
diff --git a/Neos.Flow/Resources/Private/Installer/Distribution/Defaults/Web/_Resources/.htaccess b/Neos.Flow/Resources/Private/Installer/Distribution/Defaults/Web/_Resources/.htaccess
index db138077c0..ba2094276d 100644
--- a/Neos.Flow/Resources/Private/Installer/Distribution/Defaults/Web/_Resources/.htaccess
+++ b/Neos.Flow/Resources/Private/Installer/Distribution/Defaults/Web/_Resources/.htaccess
@@ -8,9 +8,9 @@ SetHandler default-handler
   SetHandler default-handler
 </Files>
 
-<IfModule mod_php5.c>
+<IfModule mod_php7.c>
   php_flag engine off
 </IfModule>
-<IfModule mod_php7.c>
+<IfModule mod_php.c>
   php_flag engine off
 </IfModule>
diff --git a/Neos.Flow/Tests/Unit/ResourceManagement/Streams/ResourceStreamWrapperTest.php b/Neos.Flow/Tests/Unit/ResourceManagement/Streams/ResourceStreamWrapperTest.php
index 637ca7f159..781380b055 100644
--- a/Neos.Flow/Tests/Unit/ResourceManagement/Streams/ResourceStreamWrapperTest.php
+++ b/Neos.Flow/Tests/Unit/ResourceManagement/Streams/ResourceStreamWrapperTest.php
@@ -100,6 +100,22 @@ public function openResolvesAnUpperCaseSha1HashUsingTheResourceManager()
         self::assertSame($tempFile, ObjectAccess::getProperty($this->resourceStreamWrapper, 'handle', true));
     }
 
+    /**
+     * @test
+     */
+    public function resourceStreamWrapperAllowsStatOfValidResourceLinks()
+    {
+        $sha1Hash = '68ac906495480a3404beee4874ed853a037a7a8f';
+
+        $tempFile = tmpfile();
+
+        $mockResource = $this->getMockBuilder(PersistentResource::class)->disableOriginalConstructor()->getMock();
+        $this->mockResourceManager->expects(self::once())->method('getResourceBySha1')->with($sha1Hash)->will(self::returnValue($mockResource));
+        $this->mockResourceManager->expects(self::once())->method('getStreamByResource')->with($mockResource)->will(self::returnValue($tempFile));
+
+        self::assertIsArray($this->resourceStreamWrapper->pathStat('resource://' . $sha1Hash, 0));
+    }
+
     /**
      * @test
      */