diff --git a/framework-t/api/system-current.txt b/framework-t/api/system-current.txt
index 64762b4..ea465aa 100644
--- a/framework-t/api/system-current.txt
+++ b/framework-t/api/system-current.txt
@@ -388,3 +388,16 @@
 
 }
 
+package android.net.thread {
+
+  public class ThreadNetworkController {
+    method public int getThreadVersion();
+    field public static final int THREAD_VERSION_1_3 = 4; // 0x4
+  }
+
+  public class ThreadNetworkManager {
+    method @NonNull public java.util.List<android.net.thread.ThreadNetworkController> getAllThreadNetworkControllers();
+  }
+
+}
+