diff --git a/CHANGELOG-2.1.md b/CHANGELOG-2.1.md
index 8caeaacbb8..d8a512c747 100644
--- a/CHANGELOG-2.1.md
+++ b/CHANGELOG-2.1.md
@@ -207,6 +207,7 @@ To get the diff between two versions, go to https://github.com/symfony/symfony/c
  * added options "add_method" and "remove_method" to collection and choice type
  * forms now don't create an empty object anymore if they are completely
    empty and not required. The empty value for such forms is null.
+ * added constant Guess::VERY_HIGH_CONFIDENCE
 
 ### HttpFoundation
 
diff --git a/src/Symfony/Component/Form/Guess/Guess.php b/src/Symfony/Component/Form/Guess/Guess.php
index 24ab69ffc1..44d5f232be 100644
--- a/src/Symfony/Component/Form/Guess/Guess.php
+++ b/src/Symfony/Component/Form/Guess/Guess.php
@@ -22,6 +22,12 @@ namespace Symfony\Component\Form\Guess;
  */
 abstract class Guess
 {
+    /**
+     * Marks an instance with a value that is extremely likely to be correct
+     * @var integer
+     */
+    const VERY_HIGH_CONFIDENCE = 3;
+
     /**
      * Marks an instance with a value that is very likely to be correct
      * @var integer
@@ -45,6 +51,7 @@ abstract class Guess
      * @var array
      */
     private static $confidences = array(
+        self::VERY_HIGH_CONFIDENCE,
         self::HIGH_CONFIDENCE,
         self::MEDIUM_CONFIDENCE,
         self::LOW_CONFIDENCE,
@@ -53,7 +60,8 @@ abstract class Guess
     /**
      * The confidence about the correctness of the value
      *
-     * One of HIGH_CONFIDENCE, MEDIUM_CONFIDENCE and LOW_CONFIDENCE.
+     * One of VERY_HIGH_CONFIDENCE, HIGH_CONFIDENCE, MEDIUM_CONFIDENCE
+     * and LOW_CONFIDENCE.
      *
      * @var integer
      */
@@ -95,8 +103,8 @@ abstract class Guess
     /**
      * Returns the confidence that the guessed value is correct
      *
-     * @return integer  One of the constants HIGH_CONFIDENCE, MEDIUM_CONFIDENCE
-     *                  and LOW_CONFIDENCE
+     * @return integer  One of the constants VERY_HIGH_CONFIDENCE,
+     *                  HIGH_CONFIDENCE, MEDIUM_CONFIDENCE and LOW_CONFIDENCE
      */
     public function getConfidence()
     {