diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index a5b7e995293a4..6bf394dc347b5 100755
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -441,23 +441,30 @@ public class Build {
         public static final int CUR_DEVELOPMENT = 10000;
 
         /**
-         * October 2008: The original, first, version of Android.  Yay!
+         * The original, first, version of Android.  Yay!
+         *
+         * <p>Released publicly as Android 1.0 in September 2008.
          */
         public static final int BASE = 1;
 
         /**
-         * February 2009: First Android update, officially called 1.1.
+         * First Android update.
+         *
+         * <p>Released publicly as Android 1.1 in February 2009.
          */
         public static final int BASE_1_1 = 2;
 
         /**
-         * May 2009: Android 1.5.
+         * C.
+         *
+         * <p>Released publicly as Android 1.5 in April 2009.
          */
         public static final int CUPCAKE = 3;
 
         /**
-         * September 2009: Android 1.6.
+         * D.
          *
+         * <p>Released publicly as Android 1.6 in September 2009.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior:</p>
          * <ul>
@@ -481,8 +488,9 @@ public class Build {
         public static final int DONUT = 4;
 
         /**
-         * November 2009: Android 2.0
+         * E.
          *
+         * <p>Released publicly as Android 2.0 in October 2009.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior:</p>
          * <ul>
@@ -501,23 +509,30 @@ public class Build {
         public static final int ECLAIR = 5;
 
         /**
-         * December 2009: Android 2.0.1
+         * E incremental update.
+         *
+         * <p>Released publicly as Android 2.0.1 in December 2009.
          */
         public static final int ECLAIR_0_1 = 6;
 
         /**
-         * January 2010: Android 2.1
+         * E MR1.
+         *
+         * <p>Released publicly as Android 2.1 in January 2010.
          */
         public static final int ECLAIR_MR1 = 7;
 
         /**
-         * June 2010: Android 2.2
+         * F.
+         *
+         * <p>Released publicly as Android 2.2 in May 2010.
          */
         public static final int FROYO = 8;
 
         /**
-         * November 2010: Android 2.3
+         * G.
          *
+         * <p>Released publicly as Android 2.3 in December 2010.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior:</p>
          * <ul>
@@ -528,13 +543,16 @@ public class Build {
         public static final int GINGERBREAD = 9;
 
         /**
-         * February 2011: Android 2.3.3.
+         * G MR1.
+         *
+         * <p>Released publicly as Android 2.3.3 in February 2011.
          */
         public static final int GINGERBREAD_MR1 = 10;
 
         /**
-         * February 2011: Android 3.0.
+         * H.
          *
+         * <p>Released publicly as Android 3.0 in February 2011.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior:</p>
          * <ul>
@@ -573,13 +591,16 @@ public class Build {
         public static final int HONEYCOMB = 11;
 
         /**
-         * May 2011: Android 3.1.
+         * H MR1.
+         *
+         * <p>Released publicly as Android 3.1 in May 2011.
          */
         public static final int HONEYCOMB_MR1 = 12;
 
         /**
-         * June 2011: Android 3.2.
+         * H MR2.
          *
+         * <p>Released publicly as Android 3.2 in July 2011.
          * <p>Update to Honeycomb MR1 to support 7 inch tablets, improve
          * screen compatibility mode, etc.</p>
          *
@@ -626,8 +647,9 @@ public class Build {
         public static final int HONEYCOMB_MR2 = 13;
 
         /**
-         * October 2011: Android 4.0.
+         * I.
          *
+         * <p>Released publicly as Android 4.0 in October 2011.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior:</p>
          * <ul>
@@ -672,13 +694,16 @@ public class Build {
         public static final int ICE_CREAM_SANDWICH = 14;
 
         /**
-         * December 2011: Android 4.0.3.
+         * I MR1.
+         *
+         * <p>Released publicly as Android 4.03 in December 2011.
          */
         public static final int ICE_CREAM_SANDWICH_MR1 = 15;
 
         /**
-         * June 2012: Android 4.1.
+         * J.
          *
+         * <p>Released publicly as Android 4.1 in July 2012.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior:</p>
          * <ul>
@@ -720,8 +745,9 @@ public class Build {
         public static final int JELLY_BEAN = 16;
 
         /**
-         * November 2012: Android 4.2, Moar jelly beans!
+         * J MR1.
          *
+         * <p>Released publicly as Android 4.2 in November 2012.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior:</p>
          * <ul>
@@ -740,13 +766,16 @@ public class Build {
         public static final int JELLY_BEAN_MR1 = 17;
 
         /**
-         * July 2013: Android 4.3, the revenge of the beans.
+         * J MR2.
+         *
+         * <p>Released publicly as Android 4.3 in July 2013.
          */
         public static final int JELLY_BEAN_MR2 = 18;
 
         /**
-         * October 2013: Android 4.4, KitKat, another tasty treat.
+         * K.
          *
+         * <p>Released publicly as Android 4.4 in October 2013.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior. For more information about this release, see the
          * <a href="/about/versions/kitkat/">Android KitKat overview</a>.</p>
@@ -778,8 +807,9 @@ public class Build {
         public static final int KITKAT = 19;
 
         /**
-         * June 2014: Android 4.4W. KitKat for watches, snacks on the run.
+         * K for watches.
          *
+         * <p>Released publicly as Android 4.4W in June 2014.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior:</p>
          * <ul>
@@ -796,8 +826,9 @@ public class Build {
         public static final int L = 21;
 
         /**
-         * November 2014: Lollipop.  A flat one with beautiful shadows.  But still tasty.
+         * L.
          *
+         * <p>Released publicly as Android 5.0 in November 2014.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior.  For more information about this release, see the
          * <a href="/about/versions/lollipop/">Android Lollipop overview</a>.</p>
@@ -828,15 +859,18 @@ public class Build {
         public static final int LOLLIPOP = 21;
 
         /**
-         * March 2015: Lollipop with an extra sugar coating on the outside!
-         * For more information about this release, see the
+         * L MR1.
+         *
+         * <p>Released publicly as Android 5.1 in March 2015.
+         * <p>For more information about this release, see the
          * <a href="/about/versions/android-5.1">Android 5.1 APIs</a>.
          */
         public static final int LOLLIPOP_MR1 = 22;
 
         /**
-         * M is for Marshmallow!
+         * M.
          *
+         * <p>Released publicly as Android 6.0 in October 2015.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior. For more information about this release, see the
          * <a href="/about/versions/marshmallow/">Android 6.0 Marshmallow overview</a>.</p>
@@ -867,8 +901,9 @@ public class Build {
         public static final int M = 23;
 
         /**
-         * N is for Nougat.
+         * N.
          *
+         * <p>Released publicly as Android 7.0 in August 2016.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior. For more information about this release, see
          * the <a href="/about/versions/nougat/">Android Nougat overview</a>.</p>
@@ -921,7 +956,10 @@ public class Build {
         public static final int N = 24;
 
         /**
-         * N MR1: Nougat++. For more information about this release, see
+         * N MR1.
+         *
+         * <p>Released publicly as Android 7.1 in October 2016.
+         * <p>For more information about this release, see
          * <a href="/about/versions/nougat/android-7.1">Android 7.1 for
          * Developers</a>.
          */
@@ -930,6 +968,7 @@ public class Build {
         /**
          * O.
          *
+         * <p>Released publicly as Android 8.0 in August 2017.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior. For more information about this release, see
          * the <a href="/about/versions/oreo/">Android Oreo overview</a>.</p>
@@ -1020,6 +1059,7 @@ public class Build {
         /**
          * O MR1.
          *
+         * <p>Released publicly as Android 8.1 in December 2017.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior. For more information about this release, see
          * <a href="/about/versions/oreo/android-8.1">Android 8.1 features and
@@ -1037,6 +1077,7 @@ public class Build {
         /**
          * P.
          *
+         * <p>Released publicly as Android 9 in August 2018.
          * <p>Applications targeting this or a later release will get these
          * new changes in behavior. For more information about this release, see the
          * <a href="/about/versions/pie/">Android 9 Pie overview</a>.</p>
@@ -1054,6 +1095,7 @@ public class Build {
         /**
          * Q.
          *
+         * <p>Released publicly as Android 10 in September 2019.
          * <p>Applications targeting this or a later release will get these new changes in behavior.
          * For more information about this release, see the
          * <a href="/about/versions/10">Android 10 overview</a>.</p>
@@ -1069,6 +1111,7 @@ public class Build {
         /**
          * R.
          *
+         * <p>Released publicly as Android 11 in September 2020.
          * <p>Applications targeting this or a later release will get these new changes in behavior.
          * For more information about this release, see the
          * <a href="/about/versions/11">Android 11 overview</a>.</p>