diff --git a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
index e6cd3b4..1392896 100644
--- a/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
+++ b/camera/provider/2.4/vts/functional/VtsHalCameraProviderV2_4TargetTest.cpp
@@ -101,7 +101,6 @@
 using ResultMetadataQueue = MessageQueue<uint8_t, kSynchronizedReadWrite>;
 using ::android::hidl::manager::V1_0::IServiceManager;
 
-const char *kProviderFQName = "android.hardware.camera.provider@2.4::ICameraProvider";
 const uint32_t kMaxPreviewWidth = 1920;
 const uint32_t kMaxPreviewHeight = 1080;
 const uint32_t kMaxVideoWidth = 4096;
@@ -243,9 +242,7 @@
 
     virtual void HidlTearDown() override { ALOGI("TearDown CameraHidlEnvironment"); }
 
-    virtual void registerTestServices() override {
-        registerTestService("android.hardware.camera.provider", "2.4", "ICameraProvider");
-    }
+    virtual void registerTestServices() override { registerTestService<ICameraProvider>(); }
 
    private:
     CameraHidlEnvironment() {}
@@ -496,7 +493,7 @@
 class CameraHidlTest : public ::testing::VtsHalHidlTargetTestBase {
 public:
  virtual void SetUp() override {
-     string service_name = CameraHidlEnvironment::Instance()->getServiceName(kProviderFQName);
+     string service_name = CameraHidlEnvironment::Instance()->getServiceName<ICameraProvider>();
      ALOGI("get service with name: %s", service_name.c_str());
      mProvider = ::testing::VtsHalHidlTargetTestBase::getService<ICameraProvider>(service_name);
      ASSERT_NE(mProvider, nullptr);
diff --git a/cas/native/1.0/IDescrambler.hal b/cas/native/1.0/IDescrambler.hal
index 459e5e3..4822111 100644
--- a/cas/native/1.0/IDescrambler.hal
+++ b/cas/native/1.0/IDescrambler.hal
@@ -16,6 +16,7 @@
 package android.hardware.cas.native@1.0;
 
 import android.hardware.cas@1.0::IDescramblerBase;
+import android.hardware.cas@1.0::Status;
 
 /**
  * IDescrambler is the native plugin API for descrambling operations.
diff --git a/cas/native/1.0/types.hal b/cas/native/1.0/types.hal
index a576d03..d75338b 100644
--- a/cas/native/1.0/types.hal
+++ b/cas/native/1.0/types.hal
@@ -16,8 +16,6 @@
 
 package android.hardware.cas.native@1.0;
 
-import android.hardware.cas@1.0::types;
-
 /**
  * Enumerates the keys used to scramble the content.
  */
diff --git a/current.txt b/current.txt
index 1eb290b..c0dd0fa 100644
--- a/current.txt
+++ b/current.txt
@@ -187,7 +187,7 @@
 d8f0877ae1d321c1d884c7631dfe36cab0ec8a4b2863d4b687f85d3549a63bcc android.hardware.wifi.supplicant@1.0::ISupplicantStaNetworkCallback
 fe3c3c2f572b72f15f8594c538b0577bd5c28722c31879cfe6231330cddb6747 android.hardware.wifi.supplicant@1.0::types
 
-# ABI preserving changes to HALs released in Android O
+# ABI preserving changes to HALs during Android O MR1 (Initial Set)
 
 05e0edf31db5b3ae19047d87059545cc2f836023edf8f9d969319e15e3485158 android.hardware.automotive.vehicle@2.0::types
 150a338ce11fcec70757c9675d83cf6a5d7b40d0c812741b91671fecce59eac9 android.hardware.broadcastradio@1.0::types
@@ -226,8 +226,8 @@
 c26473e2e4a00af43e28a0ddf9002e5062a7d0940429e5efb6e5513a8abcb75c android.hardware.wifi@1.1::IWifi
 b056e1defab4071584214584057d0bc73a613081bf1152590549649d4582c13c android.hardware.wifi@1.1::IWifiChip
 
-# ABI preserving changes to HALs released in Android O MR1 (Initial Set)
-# None
+# ABI preserving changes to HALs during Android O MR1 (Final Set)
+05aa3de6130a9788fdb6f4d3cc57c3ea90f067e77a5e09d6a772ec7f6bca33d2 android.hardware.radio@1.1::IRadioResponse
 
 # HALs released in Android O MR1 (Final Set)
 044cb039378b8a0e36f40ff1e6ce04dc0d339da02095f968d5062a051e99d108 android.hardware.broadcastradio@1.1::types
@@ -242,10 +242,7 @@
 b80e1456b81f80032d0de7cb45652ac15af11e7474d520d757481ecaad796dff android.hardware.cas@1.0::ICasListener
 a432d6d9200248dc2126827bcd6cdea31dd65eff39b939f64585d27d915a5857 android.hardware.cas@1.0::IDescramblerBase
 86ba9c03978b79a742e990420bc5ced0673d25a939f82572996bef92621e2014 android.hardware.cas@1.0::IMediaCasService
-8ad23abc3f380c7f1d0f944a93a997417d7536b6a522dc88b2699ff5ef5db4ec android.hardware.cas.native@1.0::types
-71106c24093507954ce2aec243c8377e3ac54ebb9803c611e51620addf2af9a2 android.hardware.cas.native@1.0::IDescrambler
+503da837d1a67cbdb7c08a033e927e5430ae1b159d98bf72c6336b4dcc5e76f5 android.hardware.cas.native@1.0::types
+619600109232ed64b827c8a11beed8070b1827ae464547d7aa146cf0473b4bca android.hardware.cas.native@1.0::IDescrambler
 f4945e397b5dea41bb64518dfde59be71245d8a125fd1e0acffeb57ac7b08fed android.hardware.thermal@1.1::IThermal
 c8bc853546dd55584611def2a9fa1d99f657e3366c976d2f60fe6b8aa6d2cb87 android.hardware.thermal@1.1::IThermalCallback
-
-# ABI preserving changes to HALs released in Android O MR1 (Final Set)
-# None
diff --git a/gnss/1.0/default/GnssMeasurement.cpp b/gnss/1.0/default/GnssMeasurement.cpp
index 6c9b838..d81f829 100644
--- a/gnss/1.0/default/GnssMeasurement.cpp
+++ b/gnss/1.0/default/GnssMeasurement.cpp
@@ -182,7 +182,6 @@
 
     auto clockVal = gpsData->clock;
     static uint32_t discontinuity_count_to_handle_old_clock_type = 0;
-    auto flags = clockVal.flags;
 
     gnssData.clock.leapSecond = clockVal.leap_second;
     /*
@@ -205,7 +204,7 @@
             break;
         case GPS_CLOCK_TYPE_GPS_TIME:
             // GPS time, need to convert.
-            flags |= GPS_CLOCK_HAS_FULL_BIAS;
+            clockVal.flags |= GPS_CLOCK_HAS_FULL_BIAS;
             clockVal.full_bias_ns = clockVal.time_ns;
             clockVal.time_ns = 0;
             gnssData.clock.hwClockDiscontinuityCount =
diff --git a/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp b/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
index 0f03546..18955da 100644
--- a/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
+++ b/graphics/composer/2.1/vts/functional/VtsHalGraphicsComposerV2_1TargetTest.cpp
@@ -50,21 +50,40 @@
 using android::hardware::graphics::mapper::V2_0::tests::Gralloc;
 using GrallocError = android::hardware::graphics::mapper::V2_0::Error;
 
+// Test environment for graphics.composer
+class GraphicsComposerHidlEnvironment : public ::testing::VtsHalHidlTargetTestEnvBase {
+   public:
+    // get the test environment singleton
+    static GraphicsComposerHidlEnvironment* Instance() {
+        static GraphicsComposerHidlEnvironment* instance = new GraphicsComposerHidlEnvironment;
+        return instance;
+    }
+
+    virtual void registerTestServices() override { registerTestService<IComposer>(); }
+
+   private:
+    GraphicsComposerHidlEnvironment() {}
+
+    GTEST_DISALLOW_COPY_AND_ASSIGN_(GraphicsComposerHidlEnvironment);
+};
+
 class GraphicsComposerHidlTest : public ::testing::VtsHalHidlTargetTestBase {
  protected:
   void SetUp() override {
-    ASSERT_NO_FATAL_FAILURE(mComposer = std::make_unique<Composer>());
-    ASSERT_NO_FATAL_FAILURE(mComposerClient = mComposer->createClient());
+      ASSERT_NO_FATAL_FAILURE(
+          mComposer = std::make_unique<Composer>(
+              GraphicsComposerHidlEnvironment::Instance()->getServiceName<IComposer>()));
+      ASSERT_NO_FATAL_FAILURE(mComposerClient = mComposer->createClient());
 
-    mComposerCallback = new GraphicsComposerCallback;
-    mComposerClient->registerCallback(mComposerCallback);
+      mComposerCallback = new GraphicsComposerCallback;
+      mComposerClient->registerCallback(mComposerCallback);
 
-    // assume the first display is primary and is never removed
-    mPrimaryDisplay = waitForFirstDisplay();
+      // assume the first display is primary and is never removed
+      mPrimaryDisplay = waitForFirstDisplay();
 
-    // explicitly disable vsync
-    mComposerClient->setVsyncEnabled(mPrimaryDisplay, false);
-    mComposerCallback->setVsyncAllowed(false);
+      // explicitly disable vsync
+      mComposerClient->setVsyncEnabled(mPrimaryDisplay, false);
+      mComposerCallback->setVsyncAllowed(false);
   }
 
   void TearDown() override {
diff --git a/neuralnetworks/1.0/vts/functional/VtsHalNeuralnetworksV1_0TargetTest.cpp b/neuralnetworks/1.0/vts/functional/VtsHalNeuralnetworksV1_0TargetTest.cpp
index 930ddca..84e67cb 100644
--- a/neuralnetworks/1.0/vts/functional/VtsHalNeuralnetworksV1_0TargetTest.cpp
+++ b/neuralnetworks/1.0/vts/functional/VtsHalNeuralnetworksV1_0TargetTest.cpp
@@ -40,15 +40,13 @@
 }
 
 void NeuralnetworksHidlEnvironment::registerTestServices() {
-    registerTestService("android.hardware.neuralnetworks", "1.0", "IDevice");
+    registerTestService<IDevice>();
 }
 
 // The main test class for NEURALNETWORK HIDL HAL.
 void NeuralnetworksHidlTest::SetUp() {
-    std::string instance =
-        NeuralnetworksHidlEnvironment::getInstance()->getServiceName(IDevice::descriptor);
-    LOG(INFO) << "running vts test with instance: " << instance;
-    device = ::testing::VtsHalHidlTargetTestBase::getService<IDevice>(instance);
+    device = ::testing::VtsHalHidlTargetTestBase::getService<IDevice>(
+        NeuralnetworksHidlEnvironment::getInstance());
     ASSERT_NE(nullptr, device.get());
 }
 
diff --git a/radio/1.1/IRadioResponse.hal b/radio/1.1/IRadioResponse.hal
index 4e7bf43..759602b 100644
--- a/radio/1.1/IRadioResponse.hal
+++ b/radio/1.1/IRadioResponse.hal
@@ -16,6 +16,7 @@
 
 package android.hardware.radio@1.1;
 
+import @1.0::RadioResponseInfo;
 import @1.0::IRadioResponse;
 
 /**