diff --git a/rector.php b/rector.php
index 6cb5a5c7e451..cf6985af1488 100644
--- a/rector.php
+++ b/rector.php
@@ -26,6 +26,7 @@
 use Rector\CodingStyle\Rector\ClassMethod\MakeInheritedMethodVisibilitySameAsParentRector;
 use Rector\CodingStyle\Rector\FuncCall\CountArrayToEmptyArrayComparisonRector;
 use Rector\Config\RectorConfig;
+use Rector\DeadCode\Rector\ClassMethod\RemoveUnusedConstructorParamRector;
 use Rector\DeadCode\Rector\ClassMethod\RemoveUnusedPrivateMethodRector;
 use Rector\DeadCode\Rector\If_\UnwrapFutureCompatibleIfPhpVersionRector;
 use Rector\DeadCode\Rector\MethodCall\RemoveEmptyMethodCallRector;
@@ -88,6 +89,11 @@
             __DIR__ . '/tests/system/Test/ReflectionHelperTest.php',
         ],
 
+        RemoveUnusedConstructorParamRector::class => [
+            // @TODO remove if deprecated $httpVerb is removed
+            __DIR__ . '/system/Router/AutoRouterImproved.php',
+        ],
+
         // call on purpose for nothing happen check
         RemoveEmptyMethodCallRector::class => [
             __DIR__ . '/tests',
diff --git a/system/Router/AutoRouter.php b/system/Router/AutoRouter.php
index 3c29ff8290d4..3096b3bbd6f9 100644
--- a/system/Router/AutoRouter.php
+++ b/system/Router/AutoRouter.php
@@ -80,7 +80,7 @@ public function __construct(
      *
      * @return array [directory_name, controller_name, controller_method, params]
      */
-    public function getRoute(string $uri): array
+    public function getRoute(string $uri, string $httpVerb): array
     {
         $segments = explode('/', $uri);
 
diff --git a/system/Router/AutoRouterImproved.php b/system/Router/AutoRouterImproved.php
index 39b264ecf780..603c7f3620d7 100644
--- a/system/Router/AutoRouterImproved.php
+++ b/system/Router/AutoRouterImproved.php
@@ -58,11 +58,6 @@ final class AutoRouterImproved implements AutoRouterInterface
      */
     private bool $translateURIDashes;
 
-    /**
-     * HTTP verb for the request.
-     */
-    private string $httpVerb;
-
     /**
      * The namespace for controllers.
      */
@@ -74,15 +69,17 @@ final class AutoRouterImproved implements AutoRouterInterface
     private string $defaultController;
 
     /**
-     * The name of the default method
+     * The name of the default method without HTTP verb prefix.
      */
     private string $defaultMethod;
 
     /**
      * @param class-string[] $protectedControllers
      * @param string         $defaultController    Short classname
+     *
+     * @deprecated $httpVerb is deprecated. No longer used.
      */
-    public function __construct(
+    public function __construct(// @phpstan-ignore-line
         array $protectedControllers,
         string $namespace,
         string $defaultController,
@@ -93,13 +90,11 @@ public function __construct(
         $this->protectedControllers = $protectedControllers;
         $this->namespace            = rtrim($namespace, '\\') . '\\';
         $this->translateURIDashes   = $translateURIDashes;
-        $this->httpVerb             = $httpVerb;
         $this->defaultController    = $defaultController;
-        $this->defaultMethod        = $httpVerb . ucfirst($defaultMethod);
+        $this->defaultMethod        = $defaultMethod;
 
         // Set the default values
         $this->controller = $this->defaultController;
-        $this->method     = $this->defaultMethod;
     }
 
     /**
@@ -107,8 +102,11 @@ public function __construct(
      *
      * @return array [directory_name, controller_name, controller_method, params]
      */
-    public function getRoute(string $uri): array
+    public function getRoute(string $uri, string $httpVerb): array
     {
+        $defaultMethod = strtolower($httpVerb) . ucfirst($this->defaultMethod);
+        $this->method  = $defaultMethod;
+
         $segments = explode('/', $uri);
 
         // WARNING: Directories get shifted out of the segments array.
@@ -144,10 +142,10 @@ public function getRoute(string $uri): array
             $methodSegment = $this->translateURIDashes(array_shift($nonDirSegments));
 
             // Prefix HTTP verb
-            $this->method = $this->httpVerb . ucfirst($methodSegment);
+            $this->method = $httpVerb . ucfirst($methodSegment);
 
             // Prevent access to default method path
-            if (strtolower($this->method) === strtolower($this->defaultMethod)) {
+            if (strtolower($this->method) === strtolower($defaultMethod)) {
                 throw new PageNotFoundException(
                     'Cannot access the default method "' . $this->method . '" with the method name URI path.'
                 );
diff --git a/system/Router/AutoRouterInterface.php b/system/Router/AutoRouterInterface.php
index 9ecdd3ec2b30..6d98aec4a5bf 100644
--- a/system/Router/AutoRouterInterface.php
+++ b/system/Router/AutoRouterInterface.php
@@ -21,5 +21,5 @@ interface AutoRouterInterface
      *
      * @return array [directory_name, controller_name, controller_method, params]
      */
-    public function getRoute(string $uri): array;
+    public function getRoute(string $uri, string $httpVerb): array;
 }
diff --git a/system/Router/RouteCollection.php b/system/Router/RouteCollection.php
index 50b73616ea0e..66724935e31c 100644
--- a/system/Router/RouteCollection.php
+++ b/system/Router/RouteCollection.php
@@ -150,7 +150,7 @@ class RouteCollection implements RouteCollectionInterface
     /**
      * The current method that the script is being called by.
      *
-     * @var string
+     * @var string HTTP verb (lower case) like `get`,`post` or `*`
      */
     protected $HTTPVerb = '*';
 
@@ -550,11 +550,13 @@ public function getHTTPVerb(): string
      * Sets the current HTTP verb.
      * Used primarily for testing.
      *
+     * @param string $verb HTTP verb
+     *
      * @return $this
      */
     public function setHTTPVerb(string $verb)
     {
-        $this->HTTPVerb = $verb;
+        $this->HTTPVerb = strtolower($verb);
 
         return $this;
     }
diff --git a/system/Router/Router.php b/system/Router/Router.php
index 8dd35c656e39..f9299fa1dd0a 100644
--- a/system/Router/Router.php
+++ b/system/Router/Router.php
@@ -126,7 +126,7 @@ public function __construct(RouteCollectionInterface $routes, ?Request $request
         $this->controller = $this->collection->getDefaultController();
         $this->method     = $this->collection->getDefaultMethod();
 
-        $this->collection->setHTTPVerb(strtolower($request->getMethod() ?? $_SERVER['REQUEST_METHOD']));
+        $this->collection->setHTTPVerb($request->getMethod() ?? $_SERVER['REQUEST_METHOD']);
 
         $this->translateURIDashes = $this->collection->shouldTranslateURIDashes();
 
@@ -504,7 +504,7 @@ protected function checkRoutes(string $uri): bool
     public function autoRoute(string $uri)
     {
         [$this->directory, $this->controller, $this->method, $this->params]
-            = $this->autoRouter->getRoute($uri);
+            = $this->autoRouter->getRoute($uri, $this->collection->getHTTPVerb());
     }
 
     /**
diff --git a/tests/system/Router/AutoRouterImprovedTest.php b/tests/system/Router/AutoRouterImprovedTest.php
index ec94676be121..5b2fdff532c1 100644
--- a/tests/system/Router/AutoRouterImprovedTest.php
+++ b/tests/system/Router/AutoRouterImprovedTest.php
@@ -57,7 +57,7 @@ public function testAutoRouteFindsDefaultControllerAndMethodGet()
         $router = $this->createNewAutoRouter();
 
         [$directory, $controller, $method, $params]
-            = $router->getRoute('/');
+            = $router->getRoute('/', 'get');
 
         $this->assertNull($directory);
         $this->assertSame('\\' . Index::class, $controller);
@@ -72,7 +72,7 @@ public function testAutoRouteFindsDefaultControllerAndMethodPost()
         $router = $this->createNewAutoRouter('post');
 
         [$directory, $controller, $method, $params]
-            = $router->getRoute('/');
+            = $router->getRoute('/', 'post');
 
         $this->assertNull($directory);
         $this->assertSame('\\' . Index::class, $controller);
@@ -85,7 +85,7 @@ public function testAutoRouteFindsControllerWithFileAndMethod()
         $router = $this->createNewAutoRouter();
 
         [$directory, $controller, $method, $params]
-            = $router->getRoute('mycontroller/somemethod');
+            = $router->getRoute('mycontroller/somemethod', 'get');
 
         $this->assertNull($directory);
         $this->assertSame('\\' . Mycontroller::class, $controller);
@@ -98,7 +98,7 @@ public function testFindsControllerAndMethodAndParam()
         $router = $this->createNewAutoRouter();
 
         [$directory, $controller, $method, $params]
-            = $router->getRoute('mycontroller/somemethod/a');
+            = $router->getRoute('mycontroller/somemethod/a', 'get');
 
         $this->assertNull($directory);
         $this->assertSame('\\' . Mycontroller::class, $controller);
@@ -115,7 +115,7 @@ public function testUriParamCountIsGreaterThanMethodParams()
 
         $router = $this->createNewAutoRouter();
 
-        $router->getRoute('mycontroller/somemethod/a/b');
+        $router->getRoute('mycontroller/somemethod/a/b', 'get');
     }
 
     public function testAutoRouteFindsControllerWithFile()
@@ -123,7 +123,7 @@ public function testAutoRouteFindsControllerWithFile()
         $router = $this->createNewAutoRouter();
 
         [$directory, $controller, $method, $params]
-            = $router->getRoute('mycontroller');
+            = $router->getRoute('mycontroller', 'get');
 
         $this->assertNull($directory);
         $this->assertSame('\\' . Mycontroller::class, $controller);
@@ -136,7 +136,7 @@ public function testAutoRouteFindsControllerWithSubfolder()
         $router = $this->createNewAutoRouter();
 
         [$directory, $controller, $method, $params]
-            = $router->getRoute('subfolder/mycontroller/somemethod');
+            = $router->getRoute('subfolder/mycontroller/somemethod', 'get');
 
         $this->assertSame('Subfolder/', $directory);
         $this->assertSame('\\' . \CodeIgniter\Router\Controllers\Subfolder\Mycontroller::class, $controller);
@@ -149,7 +149,7 @@ public function testAutoRouteFindsDashedSubfolder()
         $router = $this->createNewAutoRouter();
 
         [$directory, $controller, $method, $params]
-            = $router->getRoute('dash-folder/mycontroller/somemethod');
+            = $router->getRoute('dash-folder/mycontroller/somemethod', 'get');
 
         $this->assertSame('Dash_folder/', $directory);
         $this->assertSame(
@@ -165,7 +165,7 @@ public function testAutoRouteFindsDashedController()
         $router = $this->createNewAutoRouter();
 
         [$directory, $controller, $method, $params]
-            = $router->getRoute('dash-folder/dash-controller/somemethod');
+            = $router->getRoute('dash-folder/dash-controller/somemethod', 'get');
 
         $this->assertSame('Dash_folder/', $directory);
         $this->assertSame('\\' . Dash_controller::class, $controller);
@@ -178,7 +178,7 @@ public function testAutoRouteFindsDashedMethod()
         $router = $this->createNewAutoRouter();
 
         [$directory, $controller, $method, $params]
-            = $router->getRoute('dash-folder/dash-controller/dash-method');
+            = $router->getRoute('dash-folder/dash-controller/dash-method', 'get');
 
         $this->assertSame('Dash_folder/', $directory);
         $this->assertSame('\\' . Dash_controller::class, $controller);
@@ -191,7 +191,7 @@ public function testAutoRouteFindsDefaultDashFolder()
         $router = $this->createNewAutoRouter();
 
         [$directory, $controller, $method, $params]
-            = $router->getRoute('dash-folder');
+            = $router->getRoute('dash-folder', 'get');
 
         $this->assertSame('Dash_folder/', $directory);
         $this->assertSame('\\' . Home::class, $controller);
@@ -205,7 +205,7 @@ public function testAutoRouteRejectsSingleDot()
 
         $router = $this->createNewAutoRouter();
 
-        $router->getRoute('.');
+        $router->getRoute('.', 'get');
     }
 
     public function testAutoRouteRejectsDoubleDot()
@@ -214,7 +214,7 @@ public function testAutoRouteRejectsDoubleDot()
 
         $router = $this->createNewAutoRouter();
 
-        $router->getRoute('..');
+        $router->getRoute('..', 'get');
     }
 
     public function testAutoRouteRejectsMidDot()
@@ -223,7 +223,7 @@ public function testAutoRouteRejectsMidDot()
 
         $router = $this->createNewAutoRouter();
 
-        $router->getRoute('foo.bar');
+        $router->getRoute('foo.bar', 'get');
     }
 
     public function testRejectsDefaultControllerPath()
@@ -232,7 +232,7 @@ public function testRejectsDefaultControllerPath()
 
         $router = $this->createNewAutoRouter();
 
-        $router->getRoute('home');
+        $router->getRoute('home', 'get');
     }
 
     public function testRejectsDefaultControllerAndDefaultMethodPath()
@@ -241,7 +241,7 @@ public function testRejectsDefaultControllerAndDefaultMethodPath()
 
         $router = $this->createNewAutoRouter();
 
-        $router->getRoute('home/index');
+        $router->getRoute('home/index', 'get');
     }
 
     public function testRejectsDefaultMethodPath()
@@ -250,7 +250,7 @@ public function testRejectsDefaultMethodPath()
 
         $router = $this->createNewAutoRouter();
 
-        $router->getRoute('mycontroller/index');
+        $router->getRoute('mycontroller/index', 'get');
     }
 
     public function testRejectsControllerWithRemapMethod()
@@ -262,6 +262,6 @@ public function testRejectsControllerWithRemapMethod()
 
         $router = $this->createNewAutoRouter();
 
-        $router->getRoute('remap/test');
+        $router->getRoute('remap/test', 'get');
     }
 }
diff --git a/tests/system/Test/FeatureTestAutoRoutingImprovedTest.php b/tests/system/Test/FeatureTestAutoRoutingImprovedTest.php
new file mode 100644
index 000000000000..897697146fb5
--- /dev/null
+++ b/tests/system/Test/FeatureTestAutoRoutingImprovedTest.php
@@ -0,0 +1,75 @@
+<?php
+
+/**
+ * This file is part of CodeIgniter 4 framework.
+ *
+ * (c) CodeIgniter Foundation <admin@codeigniter.com>
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace CodeIgniter\Test;
+
+use CodeIgniter\Events\Events;
+use Config\Feature;
+use Config\Services;
+
+/**
+ * @group Others
+ *
+ * @internal
+ */
+final class FeatureTestAutoRoutingImprovedTest extends CIUnitTestCase
+{
+    use FeatureTestTrait;
+
+    public static function setUpBeforeClass(): void
+    {
+        parent::setUpBeforeClass();
+
+        Events::simulate(true);
+
+        self::initializeRouter();
+    }
+
+    public static function tearDownAfterClass(): void
+    {
+        parent::tearDownAfterClass();
+
+        Events::simulate(false);
+
+        Services::reset();
+    }
+
+    private static function initializeRouter(): void
+    {
+        $routes = Services::routes();
+        $routes->resetRoutes();
+        $routes->loadRoutes();
+
+        $routes->setAutoRoute(true);
+        config(Feature::class)->autoRoutesImproved = true;
+
+        $namespace = 'Tests\Support\Controllers';
+        $routes->setDefaultNamespace($namespace);
+
+        $router = Services::router($routes);
+
+        Services::injectMock('router', $router);
+    }
+
+    public function testCallGet()
+    {
+        $response = $this->get('newautorouting');
+
+        $response->assertSee('Hello');
+    }
+
+    public function testCallPost()
+    {
+        $response = $this->post('newautorouting/save/1/a/b');
+
+        $response->assertSee('Saved');
+    }
+}
diff --git a/user_guide_src/source/changelogs/v4.3.6.rst b/user_guide_src/source/changelogs/v4.3.6.rst
index 01fc0893d41d..34551c1ede03 100644
--- a/user_guide_src/source/changelogs/v4.3.6.rst
+++ b/user_guide_src/source/changelogs/v4.3.6.rst
@@ -19,6 +19,11 @@ Interface Changes
     or implemented these interfaces, all these changes are backward compatible
     and require no intervention.
 
+AutoRouterInterface
+-------------------
+
+Now ``AutoRouterInterface::getRoute()`` has the new second parameter ``string $httpVerb``.
+
 ValidationInterface::check()
 ----------------------------
 
@@ -43,6 +48,9 @@ Changes
 Deprecations
 ************
 
+- **AutoRouterImproved:** The constructor parameter ``$httpVerb`` is deprecated.
+  No longer used.
+
 Bugs Fixed
 **********
 
@@ -51,6 +59,8 @@ Bugs Fixed
 - **Validation:** Fixed a bug that ``check()`` cannot specify non-default
   database group.
 - **Database:** Fixed a bug where semicolon character (``;``) in one of the Postgre connection parameters would break the DSN string.
+- **AutoRouting Improved:** Fixed a bug that feature testing may not find
+  controller/method.
 
 See the repo's
 `CHANGELOG.md <https://github.com/codeigniter4/CodeIgniter4/blob/develop/CHANGELOG.md>`_
diff --git a/user_guide_src/source/installation/upgrade_436.rst b/user_guide_src/source/installation/upgrade_436.rst
index 71efd80d9f85..7d4e99bb602a 100644
--- a/user_guide_src/source/installation/upgrade_436.rst
+++ b/user_guide_src/source/installation/upgrade_436.rst
@@ -18,6 +18,9 @@ Mandatory File Changes
 Breaking Changes
 ****************
 
+- ``AutoRouterInterface::getRoute()`` has the new second parameter ``string $httpVerb``.
+  If you implement it, add the parameter.
+
 Breaking Enhancements
 *********************