diff --git a/page/using-jquery-core/understanding-index.md b/page/using-jquery-core/understanding-index.md
index 823c8f04..9f1ba925 100644
--- a/page/using-jquery-core/understanding-index.md
+++ b/page/using-jquery-core/understanding-index.md
@@ -41,6 +41,26 @@ In the first example, `.index()` gives the zero-based index of `#foo1` within it
 
 Potential confusion comes from the other examples of `.index()` in the above code.  When `.index()` is called on a jQuery object that contains more than one element, it does not calculate the index of the first element as might be expected, but instead calculates the index of the last element. This is equivalent to always calling `$jqObject.last().index();`.
 
+As of versions greater than **1.8.3** the jQuery index implecitly call the `.first()`, so the result of the above code on versions greater than **1.8.3** will be
+
+```
+var $foo = $( "#foo1" );
+
+console.log( "Index: " + $foo.index() ); // 1
+
+var $listItem = $( "li" );
+
+// This implicitly calls .first()
+console.log( "Index: " + $listItem.index() ); // 1
+console.log( "Index: " + $listItem.index().index() ); // 1
+
+var $div = $( "div" );
+
+// This implicitly calls .first()
+console.log( "Index: " + $div.index() ); // 0
+console.log( "Index: " + $div.first().index() ); // 0
+```
+
 ## `.index()` with a String Argument
 
 ```