diff --git a/Neos.Media.Browser/Classes/Controller/AssetController.php b/Neos.Media.Browser/Classes/Controller/AssetController.php
index 616cc0e777b..1ce68925572 100644
--- a/Neos.Media.Browser/Classes/Controller/AssetController.php
+++ b/Neos.Media.Browser/Classes/Controller/AssetController.php
@@ -22,7 +22,6 @@
 use Neos\Flow\Mvc\Exception\ForwardException;
 use Neos\Flow\Mvc\Exception\NoSuchArgumentException;
 use Neos\Flow\Mvc\Exception\StopActionException;
-use Neos\Flow\Mvc\Exception\UnsupportedRequestTypeException;
 use Neos\Flow\Mvc\View\JsonView;
 use Neos\Flow\Mvc\View\ViewInterface;
 use Neos\Flow\Package\PackageManager;
@@ -358,7 +357,6 @@ public function replaceAssetResourceAction(Asset $asset): void
      * @param string $assetProxyIdentifier
      * @return void
      * @throws StopActionException
-     * @throws UnsupportedRequestTypeException
      */
     public function showAction(string $assetSourceIdentifier, string $assetProxyIdentifier): void
     {
@@ -387,7 +385,6 @@ public function showAction(string $assetSourceIdentifier, string $assetProxyIden
      * @param string $assetProxyIdentifier
      * @return void
      * @throws StopActionException
-     * @throws UnsupportedRequestTypeException
      */
     public function editAction(string $assetSourceIdentifier, string $assetProxyIdentifier): void
     {
@@ -441,7 +438,6 @@ public function editAction(string $assetSourceIdentifier, string $assetProxyIden
      * @param string $assetProxyIdentifier
      * @param string $overviewAction
      * @throws StopActionException
-     * @throws UnsupportedRequestTypeException
      */
     public function variantsAction(string $assetSourceIdentifier, string $assetProxyIdentifier, string $overviewAction): void
     {
@@ -485,7 +481,6 @@ public function variantsAction(string $assetSourceIdentifier, string $assetProxy
      * @param string $assetProxyIdentifier
      * @param string $overviewAction
      * @throws StopActionException
-     * @throws UnsupportedRequestTypeException
      */
     public function createVariantsAction(string $assetSourceIdentifier, string $assetProxyIdentifier, string $overviewAction): void
     {
diff --git a/Neos.Media.Browser/Classes/Controller/ImageController.php b/Neos.Media.Browser/Classes/Controller/ImageController.php
index d1aa3565466..175926c3b4e 100644
--- a/Neos.Media.Browser/Classes/Controller/ImageController.php
+++ b/Neos.Media.Browser/Classes/Controller/ImageController.php
@@ -64,7 +64,6 @@ public function indexAction($view = null, $sortBy = null, $sortDirection = null,
      * @param AssetInterface $asset
      * @return void
      * @throws \Neos\Flow\Mvc\Exception\StopActionException
-     * @throws \Neos\Flow\Mvc\Exception\UnsupportedRequestTypeException
      */
     public function editAction(string $assetSourceIdentifier = null, string $assetProxyIdentifier = null, AssetInterface $asset = null): void
     {
diff --git a/Neos.Media/Classes/Controller/ThumbnailController.php b/Neos.Media/Classes/Controller/ThumbnailController.php
index 5d6077a4fab..fae668d7ca9 100644
--- a/Neos.Media/Classes/Controller/ThumbnailController.php
+++ b/Neos.Media/Classes/Controller/ThumbnailController.php
@@ -14,7 +14,6 @@
 use Neos\Flow\Annotations as Flow;
 use Neos\Flow\Mvc\Controller\ActionController;
 use Neos\Flow\Mvc\Exception\StopActionException;
-use Neos\Flow\Mvc\Exception\UnsupportedRequestTypeException;
 use Neos\Media\Domain\Model\Thumbnail;
 use Neos\Media\Domain\Service\ThumbnailService;
 use Neos\Media\Exception\ThumbnailServiceException;
@@ -38,7 +37,6 @@ class ThumbnailController extends ActionController
      * @param Thumbnail $thumbnail
      * @return void
      * @throws StopActionException
-     * @throws UnsupportedRequestTypeException
      * @throws ThumbnailServiceException
      */
     public function thumbnailAction(Thumbnail $thumbnail)
diff --git a/Neos.Neos/Classes/Controller/Backend/BackendController.php b/Neos.Neos/Classes/Controller/Backend/BackendController.php
index 6da214f2733..e7d1a369e8b 100644
--- a/Neos.Neos/Classes/Controller/Backend/BackendController.php
+++ b/Neos.Neos/Classes/Controller/Backend/BackendController.php
@@ -21,7 +21,6 @@
 use Neos\Flow\I18n\Locale;
 use Neos\Flow\Mvc\Controller\ActionController;
 use Neos\Flow\Mvc\Exception\StopActionException;
-use Neos\Flow\Mvc\Exception\UnsupportedRequestTypeException;
 use Neos\Flow\Mvc\Routing\Exception\MissingActionNameException;
 use Neos\Flow\Package\Exception\UnknownPackageException;
 use Neos\Flow\Persistence\Exception\IllegalObjectTypeException;
@@ -76,7 +75,6 @@ class BackendController extends ActionController
      * @return void
      * @throws MissingActionNameException
      * @throws StopActionException
-     * @throws UnsupportedRequestTypeException
      * @throws \Neos\Flow\Http\Exception
      * @throws IllegalObjectTypeException
      */
@@ -97,7 +95,6 @@ public function indexAction(): void
      * @throws \Neos\Cache\Exception
      * @throws InvalidDataException
      * @throws StopActionException
-     * @throws UnsupportedRequestTypeException
      * @throws MissingActionNameException
      * @throws SessionNotStartedException
      * @throws \Neos\Neos\Exception
diff --git a/Neos.Neos/Classes/Controller/Frontend/NodeController.php b/Neos.Neos/Classes/Controller/Frontend/NodeController.php
index 123b33cb39f..756a1dd642c 100644
--- a/Neos.Neos/Classes/Controller/Frontend/NodeController.php
+++ b/Neos.Neos/Classes/Controller/Frontend/NodeController.php
@@ -113,7 +113,6 @@ class NodeController extends ActionController
      * @param string $node Legacy name for backwards compatibility of route components
      * @throws NodeNotFoundException
      * @throws \Neos\Flow\Mvc\Exception\StopActionException
-     * @throws \Neos\Flow\Mvc\Exception\UnsupportedRequestTypeException
      * @throws \Neos\Flow\Mvc\Routing\Exception\MissingActionNameException
      * @throws \Neos\Flow\Session\Exception\SessionNotStartedException
      * @throws \Neos\Neos\Exception
@@ -184,7 +183,6 @@ public function previewAction(string $node): void
      * @param string $node Legacy name for backwards compatibility of route components
      * @throws NodeNotFoundException
      * @throws \Neos\Flow\Mvc\Exception\StopActionException
-     * @throws \Neos\Flow\Mvc\Exception\UnsupportedRequestTypeException
      * @throws \Neos\Flow\Mvc\Routing\Exception\MissingActionNameException
      * @throws \Neos\Flow\Session\Exception\SessionNotStartedException
      * @throws \Neos\Neos\Exception
@@ -273,7 +271,6 @@ protected function overrideViewVariablesFromInternalArguments()
      * @param NodeAddress $nodeAddress
      * @throws NodeNotFoundException
      * @throws \Neos\Flow\Mvc\Exception\StopActionException
-     * @throws \Neos\Flow\Mvc\Exception\UnsupportedRequestTypeException
      */
     protected function handleShortcutNode(NodeAddress $nodeAddress, ContentRepository $contentRepository): void
     {
diff --git a/Neos.Neos/Classes/Controller/Service/AssetProxiesController.php b/Neos.Neos/Classes/Controller/Service/AssetProxiesController.php
index c7b5034040b..e3043d7bc7e 100644
--- a/Neos.Neos/Classes/Controller/Service/AssetProxiesController.php
+++ b/Neos.Neos/Classes/Controller/Service/AssetProxiesController.php
@@ -17,7 +17,6 @@
 use Neos\Flow\Annotations as Flow;
 use Neos\Flow\Mvc\Controller\ActionController;
 use Neos\Flow\Mvc\Exception\StopActionException;
-use Neos\Flow\Mvc\Exception\UnsupportedRequestTypeException;
 use Neos\Flow\Mvc\View\ViewInterface;
 use Neos\FluidAdaptor\View\TemplateView;
 use Neos\Media\Domain\Model\AssetSource\AssetProxy\AssetProxyInterface;
@@ -143,7 +142,6 @@ public function indexAction(string $searchTerm = '', int $limit = 10): void
      * @param string $assetProxyIdentifier
      * @return void
      * @throws StopActionException
-     * @throws UnsupportedRequestTypeException
      */
     public function showAction(string $assetSourceIdentifier, string $assetProxyIdentifier): void
     {
@@ -168,7 +166,6 @@ public function showAction(string $assetSourceIdentifier, string $assetProxyIden
      * @return void
      * @throws AssetSourceServiceException
      * @throws StopActionException
-     * @throws UnsupportedRequestTypeException
      */
     public function importAction(string $assetSourceIdentifier, string $assetProxyIdentifier): void
     {
diff --git a/Neos.Neos/Classes/Controller/Service/AssetsController.php b/Neos.Neos/Classes/Controller/Service/AssetsController.php
index 140e2e61d06..7bd163e06cd 100644
--- a/Neos.Neos/Classes/Controller/Service/AssetsController.php
+++ b/Neos.Neos/Classes/Controller/Service/AssetsController.php
@@ -17,7 +17,6 @@
 use Neos\Flow\Annotations as Flow;
 use Neos\Flow\Mvc\Controller\ActionController;
 use Neos\Flow\Mvc\Exception\StopActionException;
-use Neos\Flow\Mvc\Exception\UnsupportedRequestTypeException;
 use Neos\Flow\Mvc\View\ViewInterface;
 use Neos\FluidAdaptor\View\TemplateView;
 use Neos\Media\Domain\Repository\AssetRepository;
@@ -100,7 +99,6 @@ public function indexAction($searchTerm = ''): void
      *
      * @param string $identifier Specifies the asset to look up
      * @throws StopActionException
-     * @throws UnsupportedRequestTypeException
      */
     public function showAction($identifier): void
     {