@@ -122,10 +122,6 @@ other things, determines which HTML form tag(s) is rendered for that field.
122122Finally, you added a submit button with a custom label for submitting the form to
123123the server.
124124
125- ..versionadded ::2.3
126- Support for submit buttons was introduced in Symfony 2.3. Before that, you had
127- to add buttons to the form's HTML manually.
128-
129125Symfony comes with many built-in types that will be discussed shortly
130126(see:ref: `book-forms-type-reference `).
131127
@@ -240,12 +236,6 @@ controller::
240236 // ...
241237 }
242238
243- ..versionadded ::2.3
244- The:method: `Symfony\\ Component\\ Form\\ FormInterface::handleRequest ` method
245- was introduced in Symfony 2.3. Previously, the ``$request `` was passed
246- to the ``submit `` method - a strategy which is deprecated and will be
247- removed in Symfony 3.0. For details on that method, see:ref: `cookbook-form-submit-request `.
248-
249239This controller follows a common pattern for handling forms, and has three
250240possible paths:
251241
@@ -294,9 +284,6 @@ possible paths:
294284Submitting Forms with Multiple Buttons
295285~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
296286
297- ..versionadded ::2.3
298- Support for buttons in forms was introduced in Symfony 2.3.
299-
300287When your form contains more than one submit button, you will want to check
301288which of the buttons was clicked to adapt the program flow in your controller.
302289To do this, add a second button with the caption "Save and add" to your form::
@@ -492,9 +479,6 @@ be used to validate the underlying object.
492479Disabling Validation
493480~~~~~~~~~~~~~~~~~~~~
494481
495- ..versionadded ::2.3
496- The ability to set ``validation_groups `` to false was introduced in Symfony 2.3.
497-
498482Sometimes it is useful to suppress the validation of a form altogether. For
499483these cases you can set the ``validation_groups `` option to ``false ``::
500484
@@ -593,9 +577,6 @@ work in the book section about :ref:`validation groups <book-validation-validati
593577Groups based on the Clicked Button
594578~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
595579
596- ..versionadded ::2.3
597- Support for buttons in forms was introduced in Symfony 2.3.
598-
599580When your form contains multiple submit buttons, you can change the validation
600581group depending on which button is used to submit the form. For example,
601582consider a form in a wizard that lets you advance to the next step or go back