diff --git a/src/Symfony/Component/Process/Process.php b/src/Symfony/Component/Process/Process.php
index 9610f0899e86f..46a3de602d74e 100644
--- a/src/Symfony/Component/Process/Process.php
+++ b/src/Symfony/Component/Process/Process.php
@@ -1078,8 +1078,6 @@ public function getInput()
      * @return self The current Process instance
      *
      * @throws LogicException In case the process is running
-     *
-     * Passing an object as an input is deprecated since version 2.5 and will be removed in 3.0.
      */
     public function setInput($input)
     {
diff --git a/src/Symfony/Component/Process/ProcessBuilder.php b/src/Symfony/Component/Process/ProcessBuilder.php
index a782fd69e94dd..041ac38f5b04b 100644
--- a/src/Symfony/Component/Process/ProcessBuilder.php
+++ b/src/Symfony/Component/Process/ProcessBuilder.php
@@ -172,8 +172,6 @@ public function addEnvironmentVariables(array $variables)
      * @return ProcessBuilder
      *
      * @throws InvalidArgumentException In case the argument is invalid
-     *
-     * Passing an object as an input is deprecated since version 2.5 and will be removed in 3.0.
      */
     public function setInput($input)
     {
diff --git a/src/Symfony/Component/Process/ProcessUtils.php b/src/Symfony/Component/Process/ProcessUtils.php
index dd0a74373c879..9ce461bf7cfd7 100644
--- a/src/Symfony/Component/Process/ProcessUtils.php
+++ b/src/Symfony/Component/Process/ProcessUtils.php
@@ -83,8 +83,6 @@ public static function escapeArgument($argument)
      * @return string The validated input
      *
      * @throws InvalidArgumentException In case the input is not valid
-     *
-     * Passing an object as an input is deprecated since version 2.5 and will be removed in 3.0.
      */
     public static function validateInput($caller, $input)
     {
@@ -95,12 +93,6 @@ public static function validateInput($caller, $input)
             if (is_scalar($input)) {
                 return (string) $input;
             }
-            // deprecated as of Symfony 2.5, to be removed in 3.0
-            if (is_object($input) && method_exists($input, '__toString')) {
-                trigger_error('Passing an object as an input is deprecated since version 2.5 and will be removed in 3.0.', E_USER_DEPRECATED);
-
-                return (string) $input;
-            }
 
             throw new InvalidArgumentException(sprintf('%s only accepts strings or stream resources.', $caller));
         }
diff --git a/src/Symfony/Component/Process/Tests/AbstractProcessTest.php b/src/Symfony/Component/Process/Tests/AbstractProcessTest.php
index 8aa3765245f02..8fa93c9f0e1e8 100644
--- a/src/Symfony/Component/Process/Tests/AbstractProcessTest.php
+++ b/src/Symfony/Component/Process/Tests/AbstractProcessTest.php
@@ -232,26 +232,6 @@ public function provideInputValues()
         );
     }
 
-    /**
-     * @dataProvider provideLegacyInputValues
-     * @group legacy
-     */
-    public function testLegacyValidInput($expected, $value)
-    {
-        $this->iniSet('error_reporting', -1 & ~E_USER_DEPRECATED);
-
-        $process = $this->getProcess('php -v');
-        $process->setInput($value);
-        $this->assertSame($expected, $process->getInput());
-    }
-
-    public function provideLegacyInputValues()
-    {
-        return array(
-            array('stringifiable', new Stringifiable()),
-        );
-    }
-
     public function chainedCommandsOutputProvider()
     {
         if ('\\' === DIRECTORY_SEPARATOR) {
@@ -1191,14 +1171,6 @@ public function methodProvider()
     abstract protected function getProcess($commandline, $cwd = null, array $env = null, $input = null, $timeout = 60, array $options = array());
 }
 
-class Stringifiable
-{
-    public function __toString()
-    {
-        return 'stringifiable';
-    }
-}
-
 class NonStringifiable
 {
 }