Merge "Fix issue #23116383: Include security patch level in Settings" into mnc-dev
diff --git a/api/current.txt b/api/current.txt
index cb63aaa..d7fdb2d 100644
--- a/api/current.txt
+++ b/api/current.txt
@@ -22674,12 +22674,14 @@
 
   public static class Build.VERSION {
     ctor public Build.VERSION();
+    field public static final java.lang.String BASE_OS;
     field public static final java.lang.String CODENAME;
     field public static final java.lang.String INCREMENTAL;
     field public static final int PREVIEW_SDK_INT;
     field public static final java.lang.String RELEASE;
     field public static final deprecated java.lang.String SDK;
     field public static final int SDK_INT;
+    field public static final java.lang.String SECURITY_PATCH;
   }
 
   public static class Build.VERSION_CODES {
diff --git a/api/system-current.txt b/api/system-current.txt
index a9bc944..3c88e59 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -24618,12 +24618,14 @@
 
   public static class Build.VERSION {
     ctor public Build.VERSION();
+    field public static final java.lang.String BASE_OS;
     field public static final java.lang.String CODENAME;
     field public static final java.lang.String INCREMENTAL;
     field public static final int PREVIEW_SDK_INT;
     field public static final java.lang.String RELEASE;
     field public static final deprecated java.lang.String SDK;
     field public static final int SDK_INT;
+    field public static final java.lang.String SECURITY_PATCH;
   }
 
   public static class Build.VERSION_CODES {
diff --git a/core/java/android/os/Build.java b/core/java/android/os/Build.java
index a0162f7..2374899 100644
--- a/core/java/android/os/Build.java
+++ b/core/java/android/os/Build.java
@@ -157,6 +157,17 @@
         public static final String RELEASE = getString("ro.build.version.release");
 
         /**
+         * The base OS build the product is based on.
+         */
+        public static final String BASE_OS = SystemProperties.get("ro.build.version.base_os", "");
+
+        /**
+         * The user-visible security patch level.
+         */
+        public static final String SECURITY_PATCH = SystemProperties.get(
+                "ro.build.version.security_patch", "");
+
+        /**
          * The user-visible SDK version of the framework in its raw String
          * representation; use {@link #SDK_INT} instead.
          *