symfony
diff --git a/‎contributing/code/standards.rst
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+3-2Lines changed: 3 additions & 2 deletions b/‎contributing/code/standards.rst
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+3-2Lines changed: 3 additions & 2 deletions
diff --git a/‎cookbook/bundles/best_practices.rst
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+1-1Lines changed: 1 addition & 1 deletion b/‎cookbook/bundles/best_practices.rst
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+1-1Lines changed: 1 addition & 1 deletion
@@ -9,7 +9,7 @@ follow the same guidelines, and you should too.
 Remember that the main advantage of standards is that every piece of code
 looks and feels familiar, it's not about this or that being more readable.
 
-Symfony follows the standards defined in the `PSR-0`_, `PSR-1`_ and `PSR-2`_
+Symfony follows the standards defined in the `PSR-0`_, `PSR-1`_, `PSR-2`_ and `PSR-4`_
 documents.
 
 Since a picture - or some code - is worth a thousand words, here's a short
@@ -111,7 +111,7 @@ Structure
 
 * Define one class per file - this does not apply to private helper classes
   that are not intended to be instantiated from the outside and thus are not
-  concerned by the `PSR-0`_ standard;
+  concerned by the `PSR-0`_ and `PSR-4`_ autoload standards;
 
 * Declare class properties before methods;
 
@@ -185,3 +185,4 @@ License
 .. _`PSR-0`: http://www.php-fig.org/psr/psr-0/
 .. _`PSR-1`: http://www.php-fig.org/psr/psr-1/
 .. _`PSR-2`: http://www.php-fig.org/psr/psr-2/
+.. _`PSR-4`: http://www.php-fig.org/psr/psr-4/
@@ -342,4 +342,4 @@ Learn more from the Cookbook
 
 * :doc:`/cookbook/bundles/extension`
 
-.. _standards: http://www.php-fig.org/psr/psr-0/
+.. _standards: http://www.php-fig.org/psr/psr-4/