diff --git a/CHANGELOG b/CHANGELOG
index 9dde224..5c50899 100644
--- a/CHANGELOG
+++ b/CHANGELOG
@@ -1,6 +1,8 @@
 *SVN*
 
-* Changed Selector pattern match so that descendant combinators after pseudoclass tokens are properly handled. [wiktor, kangax, Andrew Dupont]
+* Changed the Selector regex that tests whether the selector can be expressed in XPath; added :checked, since XPath can't detect all scenarios in which an <input> is checked. Fixes #9776. [StelardActek, kangax, Andrew Dupont]
+
+* Changed Selector pattern match so that descendant combinators after pseudoclass tokens are properly handled. Fixes #9696. [wiktor, kangax, Andrew Dupont]
 
 * Make sure $w always returns an array. [Andrew Dupont, Tobie Langel]
 
diff --git a/src/selector.js b/src/selector.js
index bfb150e..56d7745 100644
--- a/src/selector.js
+++ b/src/selector.js
@@ -10,7 +10,7 @@ var Selector = Class.create({
   
   compileMatcher: function() {
     // Selectors with namespaced attributes can't use the XPath version
-    if (Prototype.BrowserFeatures.XPath && !(/\[[\w-]*?:/).test(this.expression))
+    if (Prototype.BrowserFeatures.XPath && !(/(\[[\w-]*?:|:checked)/).test(this.expression))
       return this.compileXPathMatcher();
     
     var e = this.expression, ps = Selector.patterns, h = Selector.handlers,