diff --git a/api/system-current.txt b/api/system-current.txt
index 0b8b8e45062b8..79aca0b534f66 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -5860,6 +5860,7 @@ package android.provider {
     method @RequiresPermission(android.Manifest.permission.WRITE_DEVICE_CONFIG) public static boolean setProperty(@NonNull String, @NonNull String, @Nullable String, boolean);
     field public static final String NAMESPACE_ACTIVITY_MANAGER = "activity_manager";
     field public static final String NAMESPACE_ACTIVITY_MANAGER_NATIVE_BOOT = "activity_manager_native_boot";
+    field public static final String NAMESPACE_APP_COMPAT = "app_compat";
     field public static final String NAMESPACE_ATTENTION_MANAGER_SERVICE = "attention_manager_service";
     field public static final String NAMESPACE_AUTOFILL = "autofill";
     field public static final String NAMESPACE_CONNECTIVITY = "connectivity";
diff --git a/core/java/android/provider/DeviceConfig.java b/core/java/android/provider/DeviceConfig.java
index 6d32f8cbe9ca2..b1c85e177d55f 100644
--- a/core/java/android/provider/DeviceConfig.java
+++ b/core/java/android/provider/DeviceConfig.java
@@ -77,6 +77,15 @@ public final class DeviceConfig {
     public static final String NAMESPACE_ACTIVITY_MANAGER_NATIVE_BOOT =
             "activity_manager_native_boot";
 
+    /**
+     * Namespace for all app compat related features.  These features will be applied
+     * immediately upon change.
+     *
+     * @hide
+     */
+    @SystemApi
+    public static final String NAMESPACE_APP_COMPAT = "app_compat";
+
     /**
      * Namespace for AttentionManagerService related features.
      *