diff --git a/src/compatibility/downloads.jd b/src/compatibility/downloads.jd
index f6b2b20..04d1749 100644
--- a/src/compatibility/downloads.jd
+++ b/src/compatibility/downloads.jd
@@ -32,6 +32,8 @@
 The source code for the following tests can be synced with the
 'android-cts-5.1_r1' tag in the open source tree.</p>
 <ul>
+<li><a href="5.1/android-5.1-cdd.pdf">Android 5.1 Compatibility Definition
+Document (CDD)</a></li>
 <li><a
 href="https://dl.google.com/dl/android/cts/android-cts-5.1_r1-linux_x86-arm.zip">Android
 5.1 R1 Compatibility Test Suite (CTS) - ARM</a></li>
diff --git a/src/index.jd b/src/index.jd
index 7c3a2d3..9e92d90 100644
--- a/src/index.jd
+++ b/src/index.jd
@@ -42,6 +42,13 @@
   <div class="landing-docs">
     <div class="col-8">
     <h3>What's New</h3>
+<a href="{@docRoot}compatibility/android-cdd.pdf">
+        <h4>5.1 Compatibility Definition Document</h4></a>
+        <p>The Android <strong><a
+        href="{@docRoot}compatibility/android-cdd.pdf">5.1 Compatibility Definition
+        Document (CDD)</a></strong> has been published to reflect the
+        requirements of the latest version of Android.</p>
+
 <a href="{@docRoot}devices/tech/admin/index.html">
         <h4>Device Administration Introduction</h4></a>
         <p>A new <strong><a
@@ -88,12 +95,6 @@
         to <strong><a
         href="{@docRoot}devices/tech/security/verifiedboot/dm-verity.html#optimize">Implementing
         dm-verity</a></strong>.</p>
-
-<a href="{@docRoot}source/building.html">
-        <h4>Increased Disk Space Requirements</h4></a>
-        <p>The amount of available disk space required to build Android has
-        been increased to a minimum of 100GB in <strong><a
-        href="{@docRoot}source/building.html">Downloading and Building</a></strong>.</p>
     </div>
 
     <div class="col-8">