diff --git a/UPGRADE-3.3.md b/UPGRADE-3.3.md
index b8d2524654..7f61c71f57 100644
--- a/UPGRADE-3.3.md
+++ b/UPGRADE-3.3.md
@@ -72,6 +72,8 @@ Console
    have been deprecated in favor of the `console.error` event and the `ConsoleErrorEvent`
    class. The deprecated event and class will be removed in 4.0.
 
+ * The `SymfonyQuestionHelper::ask` default validation has been deprecated and will be removed in 4.0. Apply validation using `Question::setValidator` instead.
+
 Debug
 -----
 
diff --git a/UPGRADE-4.0.md b/UPGRADE-4.0.md
index ca1f8f10e1..32248ac4e0 100644
--- a/UPGRADE-4.0.md
+++ b/UPGRADE-4.0.md
@@ -61,6 +61,8 @@ Console
  * The `console.exception` event and the related `ConsoleExceptionEvent` class have
    been removed in favor of the `console.error` event and the `ConsoleErrorEvent` class.
 
+ * The `SymfonyQuestionHelper::ask` default validation has been removed in favor of `Question::setValidator`.
+
 Debug
 -----
 
diff --git a/src/Symfony/Bundle/WebServerBundle/Command/ServerStartCommand.php b/src/Symfony/Bundle/WebServerBundle/Command/ServerStartCommand.php
index 57de788608..af90a53f32 100644
--- a/src/Symfony/Bundle/WebServerBundle/Command/ServerStartCommand.php
+++ b/src/Symfony/Bundle/WebServerBundle/Command/ServerStartCommand.php
@@ -93,7 +93,7 @@ EOF
                 'You can either install it or use the "server:run" command instead.',
             ));
 
-            if ($io->ask('Do you want to execute <info>server:run</info> immediately? [yN] ', false)) {
+            if ($io->confirm('Do you want to execute <info>server:run</info> immediately?', false)) {
                 return $this->getApplication()->find('server:run')->run($input, $output);
             }
 
diff --git a/src/Symfony/Component/Console/CHANGELOG.md b/src/Symfony/Component/Console/CHANGELOG.md
index b337ecf992..616f70e137 100644
--- a/src/Symfony/Component/Console/CHANGELOG.md
+++ b/src/Symfony/Component/Console/CHANGELOG.md
@@ -18,6 +18,7 @@ CHANGELOG
 * deprecated console.exception event in favor of console.error
 * added ability to handle `CommandNotFoundException` through the 
  `console.error` event
+* deprecated default validation in `SymfonyQuestionHelper::ask`
 
 3.2.0
 ------
diff --git a/src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php b/src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php
index 25e094a04f..cf071d594d 100644
--- a/src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php
+++ b/src/Symfony/Component/Console/Helper/SymfonyQuestionHelper.php
@@ -29,6 +29,8 @@ class SymfonyQuestionHelper extends QuestionHelper
 {
     /**
      * {@inheritdoc}
+     *
+     * To be removed in 4.0
      */
     public function ask(InputInterface $input, OutputInterface $output, Question $question)
     {
@@ -39,6 +41,8 @@ class SymfonyQuestionHelper extends QuestionHelper
             } else {
                 // make required
                 if (!is_array($value) && !is_bool($value) && 0 === strlen($value)) {
+                    @trigger_error('The default question validator is deprecated since Symfony 3.3 and will not be used anymore in version 4.0. Set a custom question validator if needed.', E_USER_DEPRECATED);
+
                     throw new LogicException('A value is required.');
                 }
             }