symfony
diff --git a/‎UPGRADE-3.3.md
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diff --git a/‎UPGRADE-4.0.md
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diff --git a/‎src/Symfony/Bridge/Twig/Form/TwigRendererEngine.php
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+6Lines changed: 6 additions & 0 deletions b/‎src/Symfony/Bridge/Twig/Form/TwigRendererEngine.php
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@@ -38,3 +38,9 @@ SecurityBundle
 
  * The `FirewallContext::getContext()` method has been deprecated and will be removed in 4.0.
    Use the `getListeners()` method instead.
+
+TwigBridge
+----------
+
+ * The `TwigRendererEngine::setEnvironment()` method has been deprecated and will be removed
+   in 4.0. Pass the Twig Environment as second argument of the constructor instead.
@@ -220,6 +220,9 @@ TwigBridge
  * The possibility to inject the Form Twig Renderer into the form extension
    has been removed. Inject it into the `TwigRendererEngine` instead.
 
+ * The `TwigRendererEngine::setEnvironment()` method has been removed.
+   Pass the Twig Environment as second argument of the constructor instead.
+
 Validator
 ---------
 
 
@@ -41,9 +41,15 @@ public function __construct(array $defaultThemes = array(), \Twig_Environment $e
 
     /**
      * {@inheritdoc}
+     *
+     * @deprecated since version 3.3, to be removed in 4.0
      */
     public function setEnvironment(\Twig_Environment $environment)
     {
+        if ($this->environment) {
+            @trigger_error(sprintf('The "%s()" method is deprecated since version 3.3 and will be removed in 4.0. Pass the Twig Environment as second argument of the constructor instead.', __METHOD__), E_USER_DEPRECATED);
+        }
+
         $this->environment = $environment;
     }