diff --git a/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
index 1c3141e..b9c7b30 100644
--- a/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.0/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -22,7 +22,7 @@
 #include <VtsCoreUtil.h>
 #include <android/hardware/wifi/1.0/IWifi.h>
 #include <android/hardware/wifi/supplicant/1.0/ISupplicantStaIface.h>
-#include <android/hardware/wifi/supplicant/1.1/ISupplicantStaIface.h>
+#include <android/hardware/wifi/supplicant/1.4/ISupplicantStaIface.h>
 
 #include "supplicant_hidl_call_util.h"
 #include "supplicant_hidl_test_utils.h"
@@ -74,7 +74,7 @@
         sta_iface_ = getSupplicantStaIface(supplicant_);
         ASSERT_NE(sta_iface_.get(), nullptr);
 
-        v1_1 = ::android::hardware::wifi::supplicant::V1_1::
+        v1_4 = ::android::hardware::wifi::supplicant::V1_4::
             ISupplicantStaIface::castFrom(sta_iface_);
 
         memcpy(mac_addr_.data(), kTestMacAddr, mac_addr_.size());
@@ -82,7 +82,7 @@
 
    protected:
     bool isP2pOn_ = false;
-    sp<::android::hardware::wifi::supplicant::V1_1::ISupplicantStaIface> v1_1 =
+    sp<::android::hardware::wifi::supplicant::V1_4::ISupplicantStaIface> v1_4 =
         nullptr;
     // ISupplicantStaIface object used for all tests in this fixture.
     sp<ISupplicantStaIface> sta_iface_;
@@ -181,8 +181,9 @@
  * RegisterCallback
  */
 TEST_P(SupplicantStaIfaceHidlTest, RegisterCallback) {
+    // This API is deprecated from v1.4 HAL.
     SupplicantStatusCode expectedCode =
-        (nullptr != v1_1) ? SupplicantStatusCode::FAILURE_UNKNOWN
+        (nullptr != v1_4) ? SupplicantStatusCode::FAILURE_UNKNOWN
                           : SupplicantStatusCode::SUCCESS;
     sta_iface_->registerCallback(new IfaceCallback(),
                                  [&](const SupplicantStatus& status) {
diff --git a/wifi/supplicant/1.1/vts/functional/Android.bp b/wifi/supplicant/1.1/vts/functional/Android.bp
index ee80628..d9ae3e0 100644
--- a/wifi/supplicant/1.1/vts/functional/Android.bp
+++ b/wifi/supplicant/1.1/vts/functional/Android.bp
@@ -48,6 +48,8 @@
         "android.hardware.wifi.supplicant@1.0",
         "android.hardware.wifi.supplicant@1.1",
         "android.hardware.wifi.supplicant@1.2",
+        "android.hardware.wifi.supplicant@1.3",
+        "android.hardware.wifi.supplicant@1.4",
         "android.hardware.wifi@1.0",
         "android.hardware.wifi@1.1",
         "libgmock",
diff --git a/wifi/supplicant/1.1/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.1/vts/functional/supplicant_sta_iface_hidl_test.cpp
index 418def2..7e6e3e4 100644
--- a/wifi/supplicant/1.1/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.1/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -20,7 +20,7 @@
 #include <android/hardware/wifi/1.0/IWifi.h>
 #include <android/hardware/wifi/1.1/IWifi.h>
 #include <android/hardware/wifi/supplicant/1.1/ISupplicantStaIface.h>
-#include <android/hardware/wifi/supplicant/1.2/ISupplicantStaIface.h>
+#include <android/hardware/wifi/supplicant/1.4/ISupplicantStaIface.h>
 #include <gtest/gtest.h>
 #include <hidl/GtestPrinter.h>
 #include <hidl/ServiceManagement.h>
@@ -47,14 +47,14 @@
         sta_iface_ = getSupplicantStaIface_1_1(supplicant_);
         ASSERT_NE(sta_iface_.get(), nullptr);
 
-        v1_2 = ::android::hardware::wifi::supplicant::V1_2::
+        v1_4 = ::android::hardware::wifi::supplicant::V1_4::
             ISupplicantStaIface::castFrom(sta_iface_);
     }
 
    protected:
     // ISupplicantStaIface object used for all tests in this fixture.
     sp<ISupplicantStaIface> sta_iface_;
-    sp<::android::hardware::wifi::supplicant::V1_2::ISupplicantStaIface> v1_2 =
+    sp<::android::hardware::wifi::supplicant::V1_4::ISupplicantStaIface> v1_4 =
         nullptr;
 };
 
@@ -139,8 +139,9 @@
  * RegisterCallback_1_1
  */
 TEST_P(SupplicantStaIfaceHidlTest, RegisterCallback_1_1) {
+    // This API is deprecated from v1.4 HAL.
     SupplicantStatusCode expectedCode =
-        (nullptr != v1_2) ? SupplicantStatusCode::FAILURE_UNKNOWN
+        (nullptr != v1_4) ? SupplicantStatusCode::FAILURE_UNKNOWN
                           : SupplicantStatusCode::SUCCESS;
     sta_iface_->registerCallback_1_1(new IfaceCallback(),
                                      [&](const SupplicantStatus& status) {
diff --git a/wifi/supplicant/1.2/vts/functional/Android.bp b/wifi/supplicant/1.2/vts/functional/Android.bp
index c23585a..2592a2b 100644
--- a/wifi/supplicant/1.2/vts/functional/Android.bp
+++ b/wifi/supplicant/1.2/vts/functional/Android.bp
@@ -51,6 +51,7 @@
         "android.hardware.wifi.supplicant@1.1",
         "android.hardware.wifi.supplicant@1.2",
         "android.hardware.wifi.supplicant@1.3",
+        "android.hardware.wifi.supplicant@1.4",
         "android.hardware.wifi@1.0",
         "android.hardware.wifi@1.1",
         "libgmock",
diff --git a/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp b/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp
index 7799390..7f81206 100644
--- a/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp
+++ b/wifi/supplicant/1.2/vts/functional/supplicant_sta_iface_hidl_test.cpp
@@ -25,6 +25,7 @@
 #include <android/hardware/wifi/supplicant/1.2/types.h>
 #include <android/hardware/wifi/supplicant/1.3/ISupplicantStaIface.h>
 #include <android/hardware/wifi/supplicant/1.3/types.h>
+#include <android/hardware/wifi/supplicant/1.4/ISupplicantStaIface.h>
 #include <hidl/GtestPrinter.h>
 #include <hidl/HidlSupport.h>
 #include <hidl/ServiceManagement.h>
@@ -63,6 +64,8 @@
 
         v1_3 = ::android::hardware::wifi::supplicant::V1_3::
             ISupplicantStaIface::castFrom(sta_iface_);
+        v1_4 = ::android::hardware::wifi::supplicant::V1_4::
+            ISupplicantStaIface::castFrom(sta_iface_);
     }
 
     enum DppCallbackType {
@@ -106,6 +109,7 @@
     // ISupplicantStaIface object used for all tests in this fixture.
     sp<ISupplicantStaIface> sta_iface_;
     sp<::android::hardware::wifi::supplicant::V1_3::ISupplicantStaIface> v1_3;
+    sp<::android::hardware::wifi::supplicant::V1_4::ISupplicantStaIface> v1_4;
 
     bool isDppSupported() {
         uint32_t keyMgmtMask = 0;
@@ -266,8 +270,9 @@
  * RegisterCallback_1_2
  */
 TEST_P(SupplicantStaIfaceHidlTest, RegisterCallback_1_2) {
+    // This API is deprecated from v1.4 HAL.
     SupplicantStatusCode expectedCode =
-        (nullptr != v1_3) ? SupplicantStatusCode::FAILURE_UNKNOWN
+        (nullptr != v1_4) ? SupplicantStatusCode::FAILURE_UNKNOWN
                           : SupplicantStatusCode::SUCCESS;
     sta_iface_->registerCallback_1_2(new IfaceCallback(),
                                      [&](const SupplicantStatus& status) {