diff --git a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php
index 7b6ac4186a..aa46d47df5 100644
--- a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php
+++ b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/MainConfiguration.php
@@ -286,20 +286,6 @@ class MainConfiguration implements ConfigurationInterface
             ->end()
             ->arrayNode('anonymous')
                 ->canBeUnset()
-                ->beforeNormalization()
-                    ->ifTrue(function ($v) { return isset($v['key']); })
-                    ->then(function ($v) {
-                        if (isset($v['secret'])) {
-                            throw new \LogicException('Cannot set both key and secret options for security.firewall.anonymous, use only secret instead.');
-                        }
-
-                        @trigger_error('security.firewall.anonymous.key is deprecated since version 2.8 and will be removed in 3.0. Use security.firewall.anonymous.secret instead.', E_USER_DEPRECATED);
-
-                        $v['secret'] = $v['key'];
-
-                        unset($v['key']);
-                    })
-                ->end()
                 ->children()
                     ->scalarNode('secret')->defaultValue(uniqid('', true))->end()
                 ->end()
diff --git a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/Security/Factory/RememberMeFactory.php b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/Security/Factory/RememberMeFactory.php
index d8321f5245..1746a21f3a 100644
--- a/src/Symfony/Bundle/SecurityBundle/DependencyInjection/Security/Factory/RememberMeFactory.php
+++ b/src/Symfony/Bundle/SecurityBundle/DependencyInjection/Security/Factory/RememberMeFactory.php
@@ -119,23 +119,10 @@ class RememberMeFactory implements SecurityFactoryInterface
 
     public function addConfiguration(NodeDefinition $node)
     {
-        $node->fixXmlConfig('user_provider');
         $builder = $node
-            ->beforeNormalization()
-                ->ifTrue(function ($v) { return isset($v['key']); })
-                ->then(function ($v) {
-                    if (isset($v['secret'])) {
-                        throw new \LogicException('Cannot set both key and secret options for remember_me, use only secret instead.');
-                    }
-
-                    @trigger_error('remember_me.key is deprecated since version 2.8 and will be removed in 3.0. Use remember_me.secret instead.', E_USER_DEPRECATED);
-
-                    $v['secret'] = $v['key'];
-
-                    unset($v['key']);
-                })
-                ->end()
-            ->children();
+            ->fixXmlConfig('user_provider')
+            ->children()
+        ;
 
         $builder
             ->scalarNode('secret')->isRequired()->cannotBeEmpty()->end()
diff --git a/src/Symfony/Bundle/SecurityBundle/Templating/Helper/LogoutUrlHelper.php b/src/Symfony/Bundle/SecurityBundle/Templating/Helper/LogoutUrlHelper.php
index 6819c37609..abb6de31a3 100644
--- a/src/Symfony/Bundle/SecurityBundle/Templating/Helper/LogoutUrlHelper.php
+++ b/src/Symfony/Bundle/SecurityBundle/Templating/Helper/LogoutUrlHelper.php
@@ -11,10 +11,8 @@
 
 namespace Symfony\Bundle\SecurityBundle\Templating\Helper;
 
-use Symfony\Component\DependencyInjection\ContainerInterface;
 use Symfony\Component\Routing\Generator\UrlGeneratorInterface;
 use Symfony\Component\Security\Http\Logout\LogoutUrlGenerator;
-use Symfony\Component\Security\Core\Authentication\Token\Storage\TokenStorageInterface;
 use Symfony\Component\Templating\Helper\Helper;
 
 /**
@@ -29,26 +27,11 @@ class LogoutUrlHelper extends Helper
     /**
      * Constructor.
      *
-     * @param ContainerInterface|LogoutUrlGenerator $generator    A ContainerInterface or LogoutUrlGenerator instance
-     * @param UrlGeneratorInterface|null            $router       The router service
-     * @param TokenStorageInterface|null            $tokenStorage The token storage service
-     *
-     * @deprecated Passing a ContainerInterface as a first argument is deprecated since 2.7 and will be removed in 3.0.
-     * @deprecated Passing a second and third argument is deprecated since 2.7 and will be removed in 3.0.
+     * @param LogoutUrlGenerator $generator A LogoutUrlGenerator instance
      */
-    public function __construct($generator, UrlGeneratorInterface $router = null, TokenStorageInterface $tokenStorage = null)
+    public function __construct(LogoutUrlGenerator $generator)
     {
-        if ($generator instanceof ContainerInterface) {
-            @trigger_error('The '.__CLASS__.' constructor will require a LogoutUrlGenerator instead of a ContainerInterface instance in 3.0.', E_USER_DEPRECATED);
-
-            if ($generator->has('security.logout_url_generator')) {
-                $this->generator = $generator->get('security.logout_url_generator');
-            } else {
-                $this->generator = new LogoutUrlGenerator($generator->get('request_stack'), $router, $tokenStorage);
-            }
-        } else {
-            $this->generator = $generator;
-        }
+        $this->generator = $generator;
     }
 
     /**
diff --git a/src/Symfony/Bundle/SecurityBundle/Twig/Extension/LogoutUrlExtension.php b/src/Symfony/Bundle/SecurityBundle/Twig/Extension/LogoutUrlExtension.php
deleted file mode 100644
index d1eae0ef20..0000000000
--- a/src/Symfony/Bundle/SecurityBundle/Twig/Extension/LogoutUrlExtension.php
+++ /dev/null
@@ -1,76 +0,0 @@
-<?php
-
-/*
- * This file is part of the Symfony package.
- *
- * (c) Fabien Potencier <fabien@symfony.com>
- *
- * For the full copyright and license information, please view the LICENSE
- * file that was distributed with this source code.
- */
-
-namespace Symfony\Bundle\SecurityBundle\Twig\Extension;
-
-@trigger_error('The '.__NAMESPACE__.'\LogoutUrlExtension class is deprecated since version 2.7 and will be removed in 3.0. Use Symfony\Bridge\Twig\Extension\LogoutUrlExtension instead.', E_USER_DEPRECATED);
-
-use Symfony\Bundle\SecurityBundle\Templating\Helper\LogoutUrlHelper;
-
-/**
- * LogoutUrlHelper provides generator functions for the logout URL to Twig.
- *
- * @author Jeremy Mikola <jmikola@gmail.com>
- *
- * @deprecated since version 2.7, to be removed in 3.0. Use Symfony\Bridge\Twig\Extension\LogoutUrlExtension instead.
- */
-class LogoutUrlExtension extends \Twig_Extension
-{
-    private $helper;
-
-    public function __construct(LogoutUrlHelper $helper)
-    {
-        $this->helper = $helper;
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getFunctions()
-    {
-        return array(
-            new \Twig_SimpleFunction('logout_url', array($this, 'getLogoutUrl')),
-            new \Twig_SimpleFunction('logout_path', array($this, 'getLogoutPath')),
-        );
-    }
-
-    /**
-     * Generates the relative logout URL for the firewall.
-     *
-     * @param string|null $key The firewall key or null to use the current firewall key
-     *
-     * @return string The relative logout URL
-     */
-    public function getLogoutPath($key = null)
-    {
-        return $this->helper->getLogoutPath($key);
-    }
-
-    /**
-     * Generates the absolute logout URL for the firewall.
-     *
-     * @param string|null $key The firewall key or null to use the current firewall key
-     *
-     * @return string The absolute logout URL
-     */
-    public function getLogoutUrl($key = null)
-    {
-        return $this->helper->getLogoutUrl($key);
-    }
-
-    /**
-     * {@inheritdoc}
-     */
-    public function getName()
-    {
-        return 'logout_url';
-    }
-}