diff --git a/audio/aidl/default/acousticEchoCanceler/AcousticEchoCancelerSw.h b/audio/aidl/default/acousticEchoCanceler/AcousticEchoCancelerSw.h
index 809812a..5f1bc46 100644
--- a/audio/aidl/default/acousticEchoCanceler/AcousticEchoCancelerSw.h
+++ b/audio/aidl/default/acousticEchoCanceler/AcousticEchoCancelerSw.h
@@ -37,7 +37,7 @@
     int getEchoDelay() const { return mEchoDelayUs; }
 
   private:
-    int mEchoDelayUs;
+    int mEchoDelayUs = 0;
 };
 
 class AcousticEchoCancelerSw final : public EffectImpl {
diff --git a/audio/aidl/default/automaticGainControl/AutomaticGainControlSw.h b/audio/aidl/default/automaticGainControl/AutomaticGainControlSw.h
index e23fec0..2724835 100644
--- a/audio/aidl/default/automaticGainControl/AutomaticGainControlSw.h
+++ b/audio/aidl/default/automaticGainControl/AutomaticGainControlSw.h
@@ -41,9 +41,10 @@
     int getSaturationMargin();
 
   private:
-    int mDigitalGain;
-    AutomaticGainControl::LevelEstimator mLevelEstimator;
-    int mSaturationMargin;
+    int mDigitalGain = 0;
+    AutomaticGainControl::LevelEstimator mLevelEstimator =
+            AutomaticGainControl::LevelEstimator::RMS;
+    int mSaturationMargin = 0;
 };
 
 class AutomaticGainControlSw final : public EffectImpl {
diff --git a/audio/aidl/default/bassboost/BassBoostSw.h b/audio/aidl/default/bassboost/BassBoostSw.h
index 411b9c9..91086e9 100644
--- a/audio/aidl/default/bassboost/BassBoostSw.h
+++ b/audio/aidl/default/bassboost/BassBoostSw.h
@@ -46,7 +46,7 @@
     int getBbStrengthPm() const { return mStrength; }
 
   private:
-    int mStrength;
+    int mStrength = 0;
 };
 
 class BassBoostSw final : public EffectImpl {
diff --git a/audio/aidl/default/noiseSuppression/NoiseSuppressionSw.h b/audio/aidl/default/noiseSuppression/NoiseSuppressionSw.h
index 0c03038..f39d8e5 100644
--- a/audio/aidl/default/noiseSuppression/NoiseSuppressionSw.h
+++ b/audio/aidl/default/noiseSuppression/NoiseSuppressionSw.h
@@ -37,7 +37,7 @@
     NoiseSuppression::Level getLevel();
 
   private:
-    NoiseSuppression::Level mLevel;
+    NoiseSuppression::Level mLevel = NoiseSuppression::Level::LOW;
 };
 
 class NoiseSuppressionSw final : public EffectImpl {
diff --git a/audio/aidl/default/virtualizer/VirtualizerSw.h b/audio/aidl/default/virtualizer/VirtualizerSw.h
index 05974a8..b4482da 100644
--- a/audio/aidl/default/virtualizer/VirtualizerSw.h
+++ b/audio/aidl/default/virtualizer/VirtualizerSw.h
@@ -45,7 +45,7 @@
     int getVrStrength() const { return mStrength; }
 
   private:
-    int mStrength;
+    int mStrength = 0;
 };
 
 class VirtualizerSw final : public EffectImpl {
diff --git a/audio/aidl/default/visualizer/VisualizerSw.h b/audio/aidl/default/visualizer/VisualizerSw.h
index edaf123..3c9e6d2 100644
--- a/audio/aidl/default/visualizer/VisualizerSw.h
+++ b/audio/aidl/default/visualizer/VisualizerSw.h
@@ -80,7 +80,7 @@
     int mCaptureSize = kMaxCaptureSize;
     Visualizer::ScalingMode mScalingMode = Visualizer::ScalingMode::NORMALIZED;
     Visualizer::MeasurementMode mMeasurementMode = Visualizer::MeasurementMode::NONE;
-    int mLatency;
+    int mLatency = 0;
     const Visualizer::GetOnlyParameters::Measurement mMeasurement = {0, 0};
     std::vector<uint8_t> mCaptureSampleBuffer;
 };
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicle.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicle.aidl
index 47fc54b..c896d14 100644
--- a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicle.aidl
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/IVehicle.aidl
@@ -190,6 +190,14 @@
      * what the sampleRate specified in {@code options}, the timestamp for
      * the timestamp is updated 10 times/s.
      *
+     * If a property is unavailable for reading because it depends on some power
+     * state which is off, property change event may not be generated until the
+     * property becomes available. For ON_CHANGE property, if the property
+     * changes from NOT_AVAILABLE to OKAY for reading some or all area(s), for
+     * each area that becomes available for reading, one property change event
+     * must be generated. The event must contain the current value for the area
+     * and must have {@code AVAILABLE} status.
+     *
      * @param callback The subscription callbacks.
      *    {@link IVehicleCallback#onPropertyEvent} would be called when a new
      *    property event arrives.
diff --git a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/StatusCode.aidl b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/StatusCode.aidl
index 23019ca..35080db 100644
--- a/automotive/vehicle/aidl/android/hardware/automotive/vehicle/StatusCode.aidl
+++ b/automotive/vehicle/aidl/android/hardware/automotive/vehicle/StatusCode.aidl
@@ -24,7 +24,11 @@
 enum StatusCode {
     OK = 0,
     /**
-     * Try again.
+     * Caller should try again.
+     *
+     * This code must be returned when an ephemeral error happens and a retry
+     * will likely succeed. E.g., when the device is currently booting up
+     * and the property is not ready yet.
      */
     TRY_AGAIN = 1,
     /**
@@ -32,9 +36,22 @@
      */
     INVALID_ARG = 2,
     /**
+     * The property is currently unavailable and will be unavailable unless
+     * some other state changes.
+     *
      * This code must be returned when device that associated with the vehicle
      * property is not available. For example, when client tries to set HVAC
      * temperature when the whole HVAC unit is turned OFF.
+     *
+     * The difference between this and TRY_AGAIN is that if NOT_AVAILABLE is
+     * returned for a property, it will remain NOT_AVAILABLE unless some other
+     * state changes. This means a retry will likely still return NOT_AVAILABLE.
+     * However, for TRY_AGAIN error, a retry will likely return OK.
+     *
+     * When subscribing to a property that is currently unavailable for getting.
+     * VHAL must return OK even if getting/setting must return NOT_AVAILABLE.
+     * VHAL must not generate property change event when the property is not
+     * available for getting.
      */
     NOT_AVAILABLE = 3,
     /**
diff --git a/biometrics/fingerprint/aidl/default/fingerprint-example.rc b/biometrics/fingerprint/aidl/default/fingerprint-example.rc
index 80985e8..10db00d 100644
--- a/biometrics/fingerprint/aidl/default/fingerprint-example.rc
+++ b/biometrics/fingerprint/aidl/default/fingerprint-example.rc
@@ -2,7 +2,8 @@
     class hal
     user nobody
     group nobody
-    interface aidl android.hardware.biometrics.fingerprint.IFingerprint/virtual
-    oneshot
     disabled
-
+on property:ro.vendor.fingerprint_virtual_hal_start=true
+    enable vendor.fingerprint-example
+on property:persist.vendor.fingerprint.virtual.type=*
+    enable vendor.fingerprint-example
diff --git a/biometrics/fingerprint/aidl/default/main.cpp b/biometrics/fingerprint/aidl/default/main.cpp
index 11bce15..0e672b1 100644
--- a/biometrics/fingerprint/aidl/default/main.cpp
+++ b/biometrics/fingerprint/aidl/default/main.cpp
@@ -28,8 +28,7 @@
     std::shared_ptr<Fingerprint> hal = ndk::SharedRefBase::make<Fingerprint>();
 
     const std::string instance = std::string(Fingerprint::descriptor) + "/virtual";
-    binder_status_t status =
-            AServiceManager_registerLazyService(hal->asBinder().get(), instance.c_str());
+    binder_status_t status = AServiceManager_addService(hal->asBinder().get(), instance.c_str());
     CHECK_EQ(status, STATUS_OK);
 
     ABinderProcess_joinThreadPool();
diff --git a/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterStatus.aidl b/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterStatus.aidl
index 36b40ea..1dc593a 100644
--- a/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterStatus.aidl
+++ b/tv/tuner/aidl/aidl_api/android.hardware.tv.tuner/current/android/hardware/tv/tuner/DemuxFilterStatus.aidl
@@ -39,4 +39,5 @@
   LOW_WATER = 2,
   HIGH_WATER = 4,
   OVERFLOW = 8,
+  NO_DATA = 16,
 }
diff --git a/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterStatus.aidl b/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterStatus.aidl
index e6f3b63..45a473e 100644
--- a/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterStatus.aidl
+++ b/tv/tuner/aidl/android/hardware/tv/tuner/DemuxFilterStatus.aidl
@@ -46,4 +46,9 @@
      * discarded.
      */
     OVERFLOW = 1 << 3,
+
+    /**
+     * Indicating there is no data coming to the filter.
+     */
+    NO_DATA = 1 << 4,
 }
diff --git a/tv/tuner/aidl/default/Filter.cpp b/tv/tuner/aidl/default/Filter.cpp
index ade265c..59e301d 100644
--- a/tv/tuner/aidl/default/Filter.cpp
+++ b/tv/tuner/aidl/default/Filter.cpp
@@ -691,6 +691,8 @@
         return DemuxFilterStatus::OVERFLOW;
     } else if (availableToRead > highThreshold) {
         return DemuxFilterStatus::HIGH_WATER;
+    } else if (availableToRead == 0) {
+        return DemuxFilterStatus::NO_DATA;
     } else if (availableToRead < lowThreshold) {
         return DemuxFilterStatus::LOW_WATER;
     }