diff --git a/src/devices/tech/security/selinux/implement.jd b/src/devices/tech/security/selinux/implement.jd
index 2a42746..655a6bc 100644
--- a/src/devices/tech/security/selinux/implement.jd
+++ b/src/devices/tech/security/selinux/implement.jd
@@ -199,11 +199,12 @@
 an initial bootstrap policy, remove this parameter so that your device is
 enforcing or it will fail CTS.
   <li>Boot up the system in permissive and see what denials are encountered on boot:<br/>
+On Ubuntu 14.04 or newer:
+<br/>
+<code>adb shell su -c dmesg | grep denied | audit2allow -p out/target/product/<em>board</em>/root/sepolicy</code>
+<br/>
 On Ubuntu 12.04:
 <code>adb shell su -c dmesg | grep denied | audit2allow</code>
-<br/>
-On Ubuntu 14.04 or newer:
-<code>adb shell su -c dmesg | grep denied | audit2allow -p out/target/product/<em>board</em>/root/sepolicy</code>
   <li>Evaluate the output. See <a href="validate.html">Validation</a> for instructions and tools.
   <li>Identify devices, and other new files that need labeling.
   <li>Use existing or new labels for your objects.
diff --git a/src/source/building.jd b/src/source/building.jd
index e6f5849..a0c3985 100644
--- a/src/source/building.jd
+++ b/src/source/building.jd
@@ -17,7 +17,7 @@
     limitations under the License.
 -->
 <p>The Android build is routinely tested in-house on recent versions of
-Ubuntu LTS (12.04), but most distributions should have the required
+Ubuntu LTS (14.04), but most distributions should have the required
 build tools available. We welcome reports of successes or failures on other
 distributions.</p>
 
diff --git a/src/source/initializing.jd b/src/source/initializing.jd
index 30f91da..99d875a 100644
--- a/src/source/initializing.jd
+++ b/src/source/initializing.jd
@@ -41,7 +41,7 @@
 <h2 id="setting-up-a-linux-build-environment">Setting up a Linux build environment</h2>
 <p>These instructions apply to all branches, including master.</p>
 <p>The Android build is routinely tested in house on recent versions of
-Ubuntu LTS (12.04), but most distributions should have the required
+Ubuntu LTS (14.04), but most distributions should have the required
 build tools available. Reports of successes or failures on other
 distributions are welcome.</p>
 <p>For Gingerbread (2.3.x) and newer versions, including the master
@@ -77,9 +77,12 @@
 <p><strong>Note</strong>: The <code>lunch</code> command in the build step will ensure that the Sun JDK is
 used instead of any previously installed JDK.</p>
 
+<h3 id="installing-required-packages-ubuntu-1404">Installing required packages (Ubuntu 14.04)</h3>
+<p>You will need a 64-bit version of Ubuntu. Ubuntu 14.04 is recommended.</p>
+<pre><code>$ sudo apt-get install bison g++-multilib git gperf libxml2-utils</code></pre>
+
 <h3 id="installing-required-packages-ubuntu-1204">Installing required packages (Ubuntu 12.04)</h3>
-<p>You will need a 64-bit version of Ubuntu.  Ubuntu 12.04 is recommended.
-Building using an older version of Ubuntu is not supported on master or recent releases.</p>
+<p>You may use Ubuntu 12.04 to build older versions of Android. Version 12.04 is not supported on master or recent releases.</p>
 <pre><code>$ sudo apt-get install git gnupg flex bison gperf build-essential \
   zip curl libc6-dev libncurses5-dev:i386 x11proto-core-dev \
   libx11-dev:i386 libreadline6-dev:i386 libgl1-mesa-glx:i386 \
@@ -88,11 +91,6 @@
 $ sudo ln -s /usr/lib/i386-linux-gnu/mesa/libGL.so.1 /usr/lib/i386-linux-gnu/libGL.so
 </code></pre>
 
-<h3 id="installing-required-packages-ubuntu-1404">Installing required packages (Ubuntu 14.04)</h3>
-<p>Building on Ubuntu 14.04 is experimental at the moment but will eventually become the recommended
-environment.</p>
-<pre><code>$ sudo apt-get install bison g++-multilib git gperf libxml2-utils</code></pre>
-
 <h3 id="installing-required-packages-ubuntu-1004-1110">Installing required packages (Ubuntu 10.04 -- 11.10)</h3>
 <p>Building on Ubuntu 10.04-11.10 is no longer supported, but may be useful for building older
 releases of AOSP.</p>