diff --git a/src/Routing/Router.php b/src/Routing/Router.php
index 7882ff9f387..3618b2366ed 100644
--- a/src/Routing/Router.php
+++ b/src/Routing/Router.php
@@ -223,10 +223,6 @@ public static function connect($route, $defaults = [], $options = [])
      */
     public static function redirect($route, $url, $options = [])
     {
-        trigger_error(
-            'Router::redirect() is deprecated. Use Router::scope() and $routes->redirect() instead.',
-            E_USER_DEPRECATED
-        );
         $options['routeClass'] = 'Cake\Routing\Route\RedirectRoute';
         if (is_string($url)) {
             $url = ['redirect' => $url];
@@ -289,10 +285,6 @@ public static function redirect($route, $url, $options = [])
      */
     public static function mapResources($controller, $options = [])
     {
-        trigger_error(
-            'Router::mapResources() is deprecated. Use Router::scope() and $routes->resources() instead.',
-            E_USER_DEPRECATED
-        );
         foreach ((array)$controller as $name) {
             list($plugin, $name) = pluginSplit($name);
 
@@ -812,10 +804,6 @@ public static function extensions($extensions = null, $merge = true)
      */
     public static function parseNamedParams(Request $request, array $options = [])
     {
-        trigger_error(
-            'Router::parseNamedParams() is deprecated and will be removed in 4.0.',
-            E_USER_DEPRECATED
-        );
         $options += ['separator' => ':'];
         if (empty($request->params['pass'])) {
             $request->params['named'] = [];
diff --git a/tests/TestCase/Routing/RouterTest.php b/tests/TestCase/Routing/RouterTest.php
index 0067c45f1a7..1425ac294c9 100644
--- a/tests/TestCase/Routing/RouterTest.php
+++ b/tests/TestCase/Routing/RouterTest.php
@@ -134,7 +134,6 @@ public function testRouteDefaultParams()
      */
     public function testMapResources()
     {
-        $restore = error_reporting(E_ALL ^ E_USER_DEPRECATED);
         Router::mapResources('Posts');
 
         $expected = [
@@ -225,7 +224,6 @@ public function testMapResources()
         ];
         $result = Router::parse('/posts/name', 'PUT');
         $this->assertEquals($expected, $result);
-        error_reporting($restore);
     }
 
     /**
@@ -235,7 +233,6 @@ public function testMapResources()
      */
     public function testPluginMapResources()
     {
-        $restore = error_reporting(E_ALL ^ E_USER_DEPRECATED);
         Router::mapResources('TestPlugin.TestPlugin');
 
         $result = Router::parse('/test_plugin/test_plugin', 'GET');
@@ -258,7 +255,6 @@ public function testPluginMapResources()
             '_method' => 'GET',
         ];
         $this->assertEquals($expected, $result);
-        error_reporting($restore);
     }
 
     /**
@@ -268,7 +264,6 @@ public function testPluginMapResources()
      */
     public function testMapResourcesWithPrefix()
     {
-        $restore = error_reporting(E_ALL ^ E_USER_DEPRECATED);
         Router::mapResources('Posts', ['prefix' => 'api']);
 
         $result = Router::parse('/api/posts', 'GET');
@@ -282,7 +277,6 @@ public function testMapResourcesWithPrefix()
             '_method' => 'GET',
         ];
         $this->assertEquals($expected, $result);
-        error_reporting($restore);
     }
 
     /**
@@ -292,7 +286,6 @@ public function testMapResourcesWithPrefix()
      */
     public function testMapResourcesWithExtension()
     {
-        $restore = error_reporting(E_ALL ^ E_USER_DEPRECATED);
         Router::extensions(['json', 'xml'], false);
         Router::mapResources('Posts', ['_ext' => 'json']);
 
@@ -313,7 +306,6 @@ public function testMapResourcesWithExtension()
 
         $result = Router::parse('/posts.xml', 'GET');
         $this->assertArrayNotHasKey('_method', $result, 'Not an extension/resource route.');
-        error_reporting($restore);
     }
 
     /**
@@ -321,7 +313,6 @@ public function testMapResourcesWithExtension()
      */
     public function testMapResourcesConnectOptions()
     {
-        $restore = error_reporting(E_ALL ^ E_USER_DEPRECATED);
         Plugin::load('TestPlugin');
         Router::mapResources('Posts', [
             'connectOptions' => [
@@ -333,7 +324,6 @@ public function testMapResourcesConnectOptions()
         $route = $routes[0];
         $this->assertInstanceOf('TestPlugin\Routing\Route\TestRoute', $route);
         $this->assertEquals('^(bar)$', $route->options['foo']);
-        error_reporting($restore);
     }
 
     /**
@@ -343,7 +333,6 @@ public function testMapResourcesConnectOptions()
      */
     public function testPluginMapResourcesWithPrefix()
     {
-        $restore = error_reporting(E_ALL ^ E_USER_DEPRECATED);
         Router::mapResources('TestPlugin.TestPlugin', ['prefix' => 'api']);
 
         $result = Router::parse('/api/test_plugin/test_plugin', 'GET');
@@ -369,7 +358,6 @@ public function testPluginMapResourcesWithPrefix()
             'prefix' => 'api',
         ];
         $this->assertEquals($expected, $result);
-        error_reporting($restore);
     }
 
     /**
@@ -409,7 +397,6 @@ public function testMultipleResourceRoute()
      */
     public function testGenerateUrlResourceRoute()
     {
-        $restore = error_reporting(E_ALL ^ E_USER_DEPRECATED);
         Router::mapResources('Posts');
 
         $result = Router::url([
@@ -444,7 +431,6 @@ public function testGenerateUrlResourceRoute()
         $result = Router::url(['controller' => 'Posts', 'action' => 'edit', '_method' => 'PATCH', 'id' => 10]);
         $expected = '/posts/10';
         $this->assertEquals($expected, $result);
-        error_reporting($restore);
     }
 
     /**
@@ -2753,12 +2739,10 @@ public function testPatternOnAction()
      */
     public function testRedirect()
     {
-        $restore = error_reporting(E_ALL ^ E_USER_DEPRECATED);
         Router::redirect('/mobile', '/', ['status' => 301]);
         $routes = Router::routes();
         $route = $routes[0];
         $this->assertInstanceOf('Cake\Routing\Route\RedirectRoute', $route);
-        error_reporting($restore);
     }
 
     /**
@@ -2768,8 +2752,6 @@ public function testRedirect()
      */
     public function testParseNamedParameters()
     {
-        $restore = error_reporting(E_ALL ^ E_USER_DEPRECATED);
-
         $request = new Request();
         $request->addParams([
             'controller' => 'posts',
@@ -2800,7 +2782,6 @@ public function testParseNamedParameters()
             ]
         ];
         $this->assertEquals($expected, $request->params);
-        error_reporting($restore);
     }
 
     /**