[Form] Added upgrade information about setting "validation_groups" => false

webmozart · webmozart · commit faf8d7a89e89 · 2013-04-15T11:09:15.000+02:00
diff --git a/UPGRADE-2.3.md b/UPGRADE-2.3.md
@@ -0,0 +1,37 @@
+﻿UPGRADE FROM 2.2 to 2.3
+=======================
+
+### Form
+
+ * Although this was not officially supported nor documented, it was possible to
+   set the option "validation_groups" to false, resulting in the group "Default"
+   being validated. Now, if you set "validation_groups" to false, the validation
+   of a form will be skipped (except for a few integrity checks on the form).
+
+   If you want to validate a form in group "Default", you should either
+   explicitly set "validation_groups" to "Default" or alternatively set it to
+   null.
+
+   Before:
+
+   ```
+   // equivalent notations for validating in group "Default"
+   "validation_groups" => null
+   "validation_groups" => "Default"
+   "validation_groups" => false
+
+   // notation for skipping validation
+   "validation_groups" => array()
+   ```
+
+   After:
+
+   ```
+   // equivalent notations for validating in group "Default"
+   "validation_groups" => null
+   "validation_groups" => "Default"
+
+   // equivalent notations for skipping validation
+   "validation_groups" => false
+   "validation_groups" => array()
+   ```
