diff --git a/UPDATE.md b/UPDATE.md
index 1d08d5854f25..eef0f78c1815 100644
--- a/UPDATE.md
+++ b/UPDATE.md
@@ -6,8 +6,22 @@ one. It only discusses changes that need to be done when using the "public"
 API of the framework. If you "hack" the core, you should probably follow the
 timeline closely anyway.
 
-PR12 to PR13
-------------
+PR12 to beta1
+-------------
+
+* The `trans` tag does not accept a message as an argument anymore:
+
+    {% trans "foo" %}
+    {% trans foo %}
+
+  Use the long version the tags or the filter instead:
+
+    {% trans %}foo{% endtrans %}
+    {{ foo|trans }}
+
+  This has been done to clarify the usage of the tag and filter and also to
+  make it clearer when the automatic output escaping rules are applied (see
+  the doc for more information).
 
 * Some methods in the DependencyInjection component's ContainerBuilder and
   Definition classes have been renamed to be more specific and consistent:
diff --git a/src/Symfony/Bridge/Twig/Extension/TranslationExtension.php b/src/Symfony/Bridge/Twig/Extension/TranslationExtension.php
index 6dc59f821f71..7cc5cc6b7850 100644
--- a/src/Symfony/Bridge/Twig/Extension/TranslationExtension.php
+++ b/src/Symfony/Bridge/Twig/Extension/TranslationExtension.php
@@ -53,7 +53,7 @@ public function getFilters()
     public function getTokenParsers()
     {
         return array(
-            // {% trans "Symfony is great!" %}
+            // {% trans %}Symfony is great!{% endtrans %}
             new TransTokenParser(),
 
             // {% transchoice count %}
diff --git a/src/Symfony/Bridge/Twig/TokenParser/TransTokenParser.php b/src/Symfony/Bridge/Twig/TokenParser/TransTokenParser.php
index 14e15b403e9e..c3450f67ab5c 100644
--- a/src/Symfony/Bridge/Twig/TokenParser/TransTokenParser.php
+++ b/src/Symfony/Bridge/Twig/TokenParser/TransTokenParser.php
@@ -36,20 +36,14 @@ public function parse(\Twig_Token $token)
         $vars = new \Twig_Node_Expression_Array(array(), $lineno);
         $domain = new \Twig_Node_Expression_Constant('messages', $lineno);
         if (!$stream->test(\Twig_Token::BLOCK_END_TYPE)) {
-            if (!$stream->test('from') && !$stream->test('with')) {
-                // {% trans "message" %}
-                // {% trans message %}
-                $body = $this->parser->getExpressionParser()->parseExpression();
-            }
-
             if ($stream->test('with')) {
-                // {% trans "message" with vars %}
+                // {% trans with vars %}
                 $stream->next();
                 $vars = $this->parser->getExpressionParser()->parseExpression();
             }
 
             if ($stream->test('from')) {
-                // {% trans "message" from "messages" %}
+                // {% trans from "messages" %}
                 $stream->next();
                 $domain = $this->parser->getExpressionParser()->parseExpression();
             } elseif (!$stream->test(\Twig_Token::BLOCK_END_TYPE)) {
@@ -57,11 +51,9 @@ public function parse(\Twig_Token $token)
             }
         }
 
-        if (null === $body) {
-            // {% trans %}message{% endtrans %}
-            $stream->expect(\Twig_Token::BLOCK_END_TYPE);
-            $body = $this->parser->subparse(array($this, 'decideTransFork'), true);
-        }
+        // {% trans %}message{% endtrans %}
+        $stream->expect(\Twig_Token::BLOCK_END_TYPE);
+        $body = $this->parser->subparse(array($this, 'decideTransFork'), true);
 
         if (!$body instanceof \Twig_Node_Text && !$body instanceof \Twig_Node_Expression) {
             throw new \Twig_Error_Syntax('A message must be a simple text');
diff --git a/tests/Symfony/Tests/Bridge/Twig/Extension/TranslationExtensionTest.php b/tests/Symfony/Tests/Bridge/Twig/Extension/TranslationExtensionTest.php
index cf21647b2c08..c141336bff58 100644
--- a/tests/Symfony/Tests/Bridge/Twig/Extension/TranslationExtensionTest.php
+++ b/tests/Symfony/Tests/Bridge/Twig/Extension/TranslationExtensionTest.php
@@ -47,16 +47,9 @@ public function getTransTests()
     {
         return array(
             // trans tag
-            array('{% trans "Hello" %}', 'Hello'),
-            array('{% trans "Hello %name%" %}', 'Hello Symfony2', array('name' => 'Symfony2')),
-            array('{% trans name %}', 'Symfony2', array('name' => 'Symfony2')),
-            array('{% trans hello with { \'%name%\': \'Symfony2\' } %}', 'Hello Symfony2', array('hello' => 'Hello %name%')),
-            array('{% set vars = { \'%name%\': \'Symfony2\' } %}{% trans hello with vars %}', 'Hello Symfony2', array('hello' => 'Hello %name%')),
-
             array('{% trans %}Hello{% endtrans %}', 'Hello'),
             array('{% trans %}%name%{% endtrans %}', 'Symfony2', array('name' => 'Symfony2')),
 
-            array('{% trans "Hello" from elsewhere %}', 'Hello'),
             array('{% trans from elsewhere %}Hello{% endtrans %}', 'Hello'),
 
             array('{% trans %}Hello %name%{% endtrans %}', 'Hello Symfony2', array('name' => 'Symfony2')),