diff --git a/sample/Appcast.xml b/sample/Appcast.xml
index 9faecc8..b1d2751 100755
--- a/sample/Appcast.xml
+++ b/sample/Appcast.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <rss
 	version="2.0"
+	xmlns:atom="http://www.w3.org/2005/Atom"
 	xmlns:sparkle="http://www.andymatuschak.org/xml-namespaces/sparkle"
 	xmlns:fervor="https://github.com/pypt/fervor"
 	xmlns:dc="http://purl.org/dc/elements/1.1/">
@@ -10,11 +11,16 @@
 		<link>http://you.com/app/appcast.xml</link>
 		<description>Most recent changes with links to updates.</description>
 		<language>en</language>
+		<atom:link href="https://raw.github.com/pypt/fervor/master/sample/Appcast.xml" rel="self" type="application/rss+xml" />
 
 		<item>
 			<title>Version 2.0 (2 bugs fixed; 3 new features)</title>
+			<pubDate>Mon, 09 Jan 2006 19:20:11 +0000</pubDate>
+			<guid isPermaLink="true">http://you.com/app/2.0.html</guid>
+
+			<!-- One of those (<link> is preferred by Fervor, <sparkle:releaseNotesLink> is used by Sparkle) -->
+			<link>http://you.com/app/2.0.html</link> <!-- or -->
 			<sparkle:releaseNotesLink>http://you.com/app/2.0.html</sparkle:releaseNotesLink>
-			<pubDate>Wed, 09 Jan 2006 19:20:11 +0000</pubDate>
 
 			<!--
 				See QtGlobal's QT_OS_* constants for valid platform versions.
@@ -22,7 +28,7 @@
 
 			<!-- Windows version. -->
 			<enclosure
-				url="http://you.com/app/Your Great App 2.0 Windows.zip"
+				url="http://you.com/app/Your%20Great%20App%202.0%20Windows.zip"
 				fervor:version="2.0"
 				fervor:platform="Q_OS_WIN32"
 				length="1656492"
@@ -30,7 +36,7 @@
 
 			<!-- Linux version. -->
 			<enclosure
-				url="http://you.com/app/Your Great App 2.0 Linux.zip"
+				url="http://you.com/app/Your%20Great%20App%202.0%20Linux.zip"
 				fervor:version="2.0"
 				fervor:platform="Q_OS_LINUX"
 				length="1618935"
@@ -41,7 +47,7 @@
 				 namespace just tells the updater that this is a download for OS X.
 			 -->
 			<enclosure
-				url="http://you.com/app/Your Great App 2.0 OS X.zip"
+				url="http://you.com/app/Your%20Great%20App%202.0%20OS%20X.zip"
 				sparkle:version="2.0"
 				fervor:platform="Q_OS_MAC"
 				length="1623481"