diff --git a/src/compatibility/4.2/android-4.2-cdd.pdf b/src/compatibility/4.2/android-4.2-cdd.pdf
new file mode 100755
index 0000000..10addf3
--- /dev/null
+++ b/src/compatibility/4.2/android-4.2-cdd.pdf
Binary files differ
diff --git a/src/compatibility/4.2/versions.md b/src/compatibility/4.2/versions.md
new file mode 100644
index 0000000..90c166f
--- /dev/null
+++ b/src/compatibility/4.2/versions.md
@@ -0,0 +1,32 @@
+<!--
+   Copyright 2010 The Android Open Source Project
+
+   Licensed under the Apache License, Version 2.0 (the "License"); 
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+# Permitted Version Strings for Android 4.2 #
+
+As described in Section 3.2.2 of the [Android 4.2 Compatibility Definition](/cdds/android-4.2-cdd.pdf), 
+only certain strings are allowable for the system property
+`android.os.Build.VERSION.RELEASE`. The reason for this is that
+applications and web sites may rely on predictable values for this string, and
+so that end users can easily and reliably identify the version of Android
+running on their devices.
+
+Because subsequent releases of the Android software may revise this string,
+but not change any API behavior, such releases may not be accompanied by a new
+Compatibility Definition Document. This page lists the versions that are
+allowable by an Android 4.2-based system. The only permitted values for
+`android.os.Build.VERSION.RELEASE` for Android 4.2 are:
+
+- 4.2
diff --git a/src/compatibility/android-4.2-cdd.pdf b/src/compatibility/android-4.2-cdd.pdf
new file mode 100755
index 0000000..10addf3
--- /dev/null
+++ b/src/compatibility/android-4.2-cdd.pdf
Binary files differ
diff --git a/src/compatibility/android-cts-manual-r5.pdf b/src/compatibility/android-cts-manual-r6.pdf
similarity index 82%
rename from src/compatibility/android-cts-manual-r5.pdf
rename to src/compatibility/android-cts-manual-r6.pdf
index 5f911dc..5f4173b 100644
--- a/src/compatibility/android-cts-manual-r5.pdf
+++ b/src/compatibility/android-cts-manual-r6.pdf
Binary files differ
diff --git a/src/compatibility/cts-development.md b/src/compatibility/cts-development.md
index ea43d1c..78996a7 100644
--- a/src/compatibility/cts-development.md
+++ b/src/compatibility/cts-development.md
@@ -19,7 +19,7 @@
 ## Initializing Your Repo Client ##
 
 Follow the [instructions](/source/downloading.html)
-to get and build the Android source code but specify `-b android-4.1.1_r1`
+to get and build the Android source code but specify `-b android-4.2_r1`
 when issuing the `repo init` command. This assures that your CTS
 changes will be included in the next CTS release and beyond.
 
@@ -48,7 +48,7 @@
 
 At the cts-tf console, enter e.g.:
 
-    run cts --plan CTS -p android.os.cts.BuildVersionTest
+    run cts --plan CTS
 
 ## Writing CTS Tests ##
 
diff --git a/src/compatibility/downloads.md b/src/compatibility/downloads.md
index 8f2dcf7..05d8d36 100644
--- a/src/compatibility/downloads.md
+++ b/src/compatibility/downloads.md
@@ -19,6 +19,16 @@
 Thanks for your interest in Android Compatibility! The links below allow
 you to access the key documents and information.
 
+## Android 4.2 ##
+
+Android 4.2 is the release of the development milestone code-named
+Jelly Bean-MR1. Android 4.2 is the current version of Android. Source code for
+Android 4.2 is found in the 'android-4.2_r1' branch in the open-source tree.
+
+- [Android 4.2 Compatibility Definition Document (CDD)](4.2/android-4.2-cdd.pdf)
+- [Android 4.2 R1 Compatibility Test Suite (CTS)](https://dl.google.com/dl/android/cts/android-cts-4.2_r1-linux_x86-arm.zip)
+- [Android 4.2 R1 CTS Verifier](https://dl.google.com/dl/android/cts/android-cts-verifier-4.2_r1-linux_x86-arm.zip)
+
 ## Android 4.1 ##
 
 Android 4.1.1 is the release of the development milestone code-named
@@ -83,7 +93,7 @@
 The CTS user manual is applicable to any CTS version, but CTS 2.1 R2 and
 beyond require [additional steps](cts-intro.html) to run the accessibility tests.
 
-- [Compatibility Test Suite (CTS) User Manual](android-cts-manual-r5.pdf)
+- [Compatibility Test Suite (CTS) User Manual](android-cts-manual-r6.pdf)
 
 ## CTS Media Files ##
 These media files are required for the CTS media stress tests.
diff --git a/src/compatibility/overview.md b/src/compatibility/overview.md
index 627334c..d691cfc 100644
--- a/src/compatibility/overview.md
+++ b/src/compatibility/overview.md
@@ -102,7 +102,7 @@
 If you want to build a device compatible with a given Android version,
 start by checking out the source code for that version, and then read the
 corresponding CDD and stay within its guidelines. For additional details,
-simply examine [the latest CDD](4.1/android-4.1-cdd.pdf).
+simply examine [the latest CDD](4.2/android-4.2-cdd.pdf).
 
 # Compatibility Test Suite (CTS) #
 
diff --git a/src/compatibility/sidebar.md b/src/compatibility/sidebar.md
index 9df9f50..1745dc7 100644
--- a/src/compatibility/sidebar.md
+++ b/src/compatibility/sidebar.md
@@ -1,6 +1,6 @@
 # Getting Started #
 - [Compatibility Overview](/compatibility/overview.html)
-- [Current CDD](/compatibility/4.1/android-4.1-cdd.pdf)
+- [Current CDD](/compatibility/4.2/android-4.2-cdd.pdf)
 - [CTS Introduction](/compatibility/cts-intro.html)
 - [CTS Development](/compatibility/cts-development.html)