Bump version to 2.2.1 and rebuild

build/fragments/version.txt

@@ -1 +1 @@
-2.2.0
+2.2.1

build/output/knockout-latest.debug.js

@@ -1,4 +1,4 @@
-// Knockout JavaScript library v2.2.0
+// Knockout JavaScript library v2.2.1
 // (c) Steven Sanderson - http://knockoutjs.com/
 // License: MIT (http://www.opensource.org/licenses/mit-license.php)
 
@@ -37,7 +37,7 @@ ko.exportSymbol = function(koPath, object) {
 ko.exportProperty = function(owner, publicName, object) {
   owner[publicName] = object;
 };
-ko.version = "2.2.0";
+ko.version = "2.2.1";
 
 ko.exportSymbol('version', ko.version);
 ko.utils = new (function () {
@@ -703,22 +703,28 @@ ko.exportSymbol('utils.domNodeDisposal.removeDisposeCallback', ko.utils.domNodeD
     }
 
     function jQueryHtmlParse(html) {
-        var elems = jQuery['clean']([html]);
-
-        // As of jQuery 1.7.1, jQuery parses the HTML by appending it to some dummy parent nodes held in an in-memory document fragment.
-        // Unfortunately, it never clears the dummy parent nodes from the document fragment, so it leaks memory over time.
-        // Fix this by finding the top-most dummy parent element, and detaching it from its owner fragment.
-        if (elems && elems[0]) {
-            // Find the top-most parent element that's a direct child of a document fragment
-            var elem = elems[0];
-            while (elem.parentNode && elem.parentNode.nodeType !== 11 /* i.e., DocumentFragment */)
-                elem = elem.parentNode;
-            // ... then detach it
-            if (elem.parentNode)
-                elem.parentNode.removeChild(elem);
-        }
-
-        return elems;
+        // jQuery's "parseHTML" function was introduced in jQuery 1.8.0 and is a documented public API.
+        if (jQuery['parseHTML']) {
+            return jQuery['parseHTML'](html);
+        } else {
+            // For jQuery < 1.8.0, we fall back on the undocumented internal "clean" function.
+            var elems = jQuery['clean']([html]);
+
+            // As of jQuery 1.7.1, jQuery parses the HTML by appending it to some dummy parent nodes held in an in-memory document fragment.
+            // Unfortunately, it never clears the dummy parent nodes from the document fragment, so it leaks memory over time.
+            // Fix this by finding the top-most dummy parent element, and detaching it from its owner fragment.
+            if (elems && elems[0]) {
+                // Find the top-most parent element that's a direct child of a document fragment
+                var elem = elems[0];
+                while (elem.parentNode && elem.parentNode.nodeType !== 11 /* i.e., DocumentFragment */)
+                    elem = elem.parentNode;
+                // ... then detach it
+                if (elem.parentNode)
+                    elem.parentNode.removeChild(elem);
+            }
+
+            return elems;
+        }
     }
 
     ko.utils.parseHtmlFragment = function(html) {