Updated documentation as requested by @stof and @xabbuh

Author: Aaron Valandra

cookbook/security/csrf_in_login_form.rst

@@ -13,10 +13,6 @@ for CSRF. In this article you'll learn how you can use it in your login form.
     Login CSRF attacks are a bit less well-known. See `Forging Login Requests`_
     if you're curious about more details.
 
-.. note::
-
-    Since SF 2.8 ``intention`` has been depreciated, and removed in SF 3.0. It is now labeled as ``csrf_token_id``. ``csrf_provider`` was changed in SF 3.0 to ``csrf_token_generator``.
-    
 Configuring CSRF Protection
 ---------------------------
 
@@ -37,8 +33,6 @@ provider available in the Security component:
                     # ...
                     form_login:
                         # ...
-                        # Use csrf_provider in SF <2.8
-                        # csrf_provider: security.csrf.token_manager
                         csrf_token_generator: security.csrf.token_manager
 
     .. code-block:: xml
@@ -72,8 +66,6 @@ provider available in the Security component:
                     // ...
                     'form_login' => array(
                         // ...
-                        // Use csrf_provider in SF <2.8
-                        // 'csrf_provider' => 'security.csrf.token_manager',
                         'csrf_token_generator' => 'security.csrf.token_manager',
                     ),
                 ),
@@ -130,7 +122,7 @@ After this, you have protected your login form against CSRF attacks.
 .. tip::
 
     You can change the name of the field by setting ``csrf_parameter`` and change
-    the token ID by setting  ``csrf_token_id`` ~~``intention``~~ in your configuration:
+    the token ID by setting  ``csrf_token_id`` in your configuration:
 
     .. configuration-block::
 
@@ -146,7 +138,6 @@ After this, you have protected your login form against CSRF attacks.
                         form_login:
                             # ...
                             csrf_parameter: _csrf_security_token
-                            # intention: a_private_string
                             csrf_token_id: a_private_string
 
         .. code-block:: xml
@@ -165,7 +156,6 @@ After this, you have protected your login form against CSRF attacks.
                     <firewall name="secured_area">
                         <!-- ... -->
                         <form-login csrf-parameter="_csrf_security_token"
-                            <!-- intention="a_private_string" -->
                                  csrf_token_id="a_private_string"
                         />
                     </firewall>
@@ -185,11 +175,15 @@ After this, you have protected your login form against CSRF attacks.
                             // ...
                             'csrf_parameter' => '_csrf_security_token',
                             'csrf_token_id'     => 'a_private_string'
-                            // 'intention'      => 'a_private_string',
                         ),
                     ),
                 ),
             ));
 
+versionadded:: 2.8
+    The ``intention`` and ``csrf_token_generator`` options were introduced
+    in Symfony 2.8. Prior, you had to use the ``csrf_token_id`` and ``csrf_provider``
+    options.
+
 .. _`Cross-site request forgery`: https://en.wikipedia.org/wiki/Cross-site_request_forgery
 .. _`Forging Login Requests`: https://en.wikipedia.org/wiki/Cross-site_request_forgery#Forging_login_requests