diff --git a/automotive/evs/aidl/Android.bp b/automotive/evs/aidl/Android.bp
index dfb15c6..5b2f82f 100644
--- a/automotive/evs/aidl/Android.bp
+++ b/automotive/evs/aidl/Android.bp
@@ -44,6 +44,9 @@
         ndk: {
             min_sdk_version: "29",
         },
+        rust: {
+            enabled: true,
+        },
     },
     versions_with_info: [
         {
diff --git a/automotive/evs/aidl/rust_impl/Android.bp b/automotive/evs/aidl/rust_impl/Android.bp
new file mode 100644
index 0000000..ac8b90f
--- /dev/null
+++ b/automotive/evs/aidl/rust_impl/Android.bp
@@ -0,0 +1,30 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+rust_binary {
+    name: "android.hardware.automotive.evs-aidl-rust-service",
+    relative_install_path: "hw",
+    vendor: true,
+    srcs: ["src/*.rs"],
+    crate_root: "src/main.rs",
+    vintf_fragments: ["manifest_evs-rust-service.xml"],
+    init_rc: ["evs-rust-service.rc"],
+    rustlibs: [
+        "android.hardware.automotive.evs-V2-rust",
+        "libbinder_rs",
+        "liblog_rust",
+    ],
+}
diff --git a/automotive/evs/aidl/rust_impl/README.md b/automotive/evs/aidl/rust_impl/README.md
new file mode 100644
index 0000000..bf00aed
--- /dev/null
+++ b/automotive/evs/aidl/rust_impl/README.md
@@ -0,0 +1,21 @@
+# Rust Skeleton EVS HAL implementation.
+
+WARNING: This is not a reference EVS HAL implementation and therefore does not
+provide any actual functionality.
+
+This folder contains a skeleton EVS HAL implementation in Rust to demonstrate
+how vendors could implement their EVS HAL in Rust. To compile and run this
+implementation, please include below package to the device build script:
+
+* `android.hardware.automotive.evs-aidl-rust-service`
+
+Please note that this service will attempt to register the service as
+`IEvsEnumerator/rust/0` and therefore is also required to be declared in the
+service context by adding below line to a proper `service_contexts` file:
+
+> android.hardware.automotive.evs.IEvsEnumerator/rust/0 u:object_r:hal_evs_service:s0
+
+This implementation intentionally returns `binder::StatusCode::UNKNOWN_ERROR`
+for any API call except deprecated API for ultrasonics; the process will be
+panicked on these methods instead. Hence, this implementation does not comply
+with VTS tests and vendors must replace each method with actual implementation.
diff --git a/automotive/evs/aidl/rust_impl/evs-rust-service.rc b/automotive/evs/aidl/rust_impl/evs-rust-service.rc
new file mode 100644
index 0000000..3741b21
--- /dev/null
+++ b/automotive/evs/aidl/rust_impl/evs-rust-service.rc
@@ -0,0 +1,8 @@
+service vendor.evs-hal-rust-default /vendor/bin/hw/android.hardware.automotive.evs-aidl-rust-service
+    class early_hal
+    priority -20
+    user graphics
+    group automotive_evs camera
+    onrestart restart cardisplayproxyd
+    onrestart restart evsmanagerd
+    disabled
diff --git a/automotive/evs/aidl/rust_impl/manifest_evs-rust-service.xml b/automotive/evs/aidl/rust_impl/manifest_evs-rust-service.xml
new file mode 100644
index 0000000..813cbb2
--- /dev/null
+++ b/automotive/evs/aidl/rust_impl/manifest_evs-rust-service.xml
@@ -0,0 +1,7 @@
+<manifest version="2.0" type="device">
+    <hal format="aidl">
+        <name>android.hardware.automotive.evs</name>
+        <version>2</version>
+        <fqname>IEvsEnumerator/rust/0</fqname>
+    </hal>
+</manifest>
diff --git a/automotive/evs/aidl/rust_impl/src/default_evs_hal.rs b/automotive/evs/aidl/rust_impl/src/default_evs_hal.rs
new file mode 100644
index 0000000..72b2d53
--- /dev/null
+++ b/automotive/evs/aidl/rust_impl/src/default_evs_hal.rs
@@ -0,0 +1,113 @@
+//
+// Copyright (C) 2024 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+use android_hardware_automotive_evs::aidl::android::hardware::automotive::evs::{
+    CameraDesc::CameraDesc, DisplayState::DisplayState, IEvsCamera::IEvsCamera,
+    IEvsDisplay::IEvsDisplay, IEvsEnumerator::IEvsEnumerator,
+    IEvsEnumeratorStatusCallback::IEvsEnumeratorStatusCallback,
+    IEvsUltrasonicsArray::IEvsUltrasonicsArray, Stream::Stream,
+    UltrasonicsArrayDesc::UltrasonicsArrayDesc,
+};
+
+pub struct DefaultEvsHal {}
+
+impl binder::Interface for DefaultEvsHal {}
+
+impl IEvsEnumerator for DefaultEvsHal {
+    fn closeCamera(
+        &self,
+        _: &binder::Strong<(dyn IEvsCamera + 'static)>,
+    ) -> std::result::Result<(), binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+
+    fn closeDisplay(
+        &self,
+        _: &binder::Strong<(dyn IEvsDisplay + 'static)>,
+    ) -> std::result::Result<(), binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+
+    fn closeUltrasonicsArray(
+        &self,
+        _: &binder::Strong<(dyn IEvsUltrasonicsArray + 'static)>,
+    ) -> std::result::Result<(), binder::Status> {
+        unimplemented!()
+    }
+
+    fn getCameraList(&self) -> std::result::Result<std::vec::Vec<CameraDesc>, binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+
+    fn getDisplayIdList(&self) -> std::result::Result<std::vec::Vec<u8>, binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+
+    fn getDisplayState(&self) -> std::result::Result<DisplayState, binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+
+    fn getStreamList(
+        &self,
+        _: &CameraDesc,
+    ) -> std::result::Result<std::vec::Vec<Stream>, binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+
+    fn getUltrasonicsArrayList(
+        &self,
+    ) -> std::result::Result<std::vec::Vec<UltrasonicsArrayDesc>, binder::Status> {
+        unimplemented!()
+    }
+
+    fn isHardware(&self) -> std::result::Result<bool, binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+
+    fn openCamera(
+        &self,
+        _: &str,
+        _: &Stream,
+    ) -> std::result::Result<binder::Strong<(dyn IEvsCamera + 'static)>, binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+
+    fn openDisplay(
+        &self,
+        _: i32,
+    ) -> std::result::Result<binder::Strong<(dyn IEvsDisplay + 'static)>, binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+
+    fn openUltrasonicsArray(
+        &self,
+        _: &str,
+    ) -> std::result::Result<binder::Strong<(dyn IEvsUltrasonicsArray + 'static)>, binder::Status>
+    {
+        unimplemented!()
+    }
+
+    fn registerStatusCallback(
+        &self,
+        _: &binder::Strong<(dyn IEvsEnumeratorStatusCallback + 'static)>,
+    ) -> std::result::Result<(), binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+
+    fn getDisplayStateById(&self, _: i32) -> std::result::Result<DisplayState, binder::Status> {
+        Err(binder::StatusCode::UNKNOWN_ERROR.into())
+    }
+}
diff --git a/automotive/evs/aidl/rust_impl/src/main.rs b/automotive/evs/aidl/rust_impl/src/main.rs
new file mode 100644
index 0000000..df312c0
--- /dev/null
+++ b/automotive/evs/aidl/rust_impl/src/main.rs
@@ -0,0 +1,42 @@
+//
+// Copyright (C) 2024 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+mod default_evs_hal;
+
+use crate::default_evs_hal::DefaultEvsHal;
+
+use android_hardware_automotive_evs::aidl::android::hardware::automotive::evs::IEvsEnumerator::BnEvsEnumerator;
+
+use log::info;
+
+fn main() {
+    binder::ProcessState::start_thread_pool();
+
+    let service = DefaultEvsHal {};
+
+    // Register HAL implementation as rust/0 instance.
+    let service_name = "android.hardware.automotive.evs.IEvsEnumerator/rust/0";
+    let service_binder = BnEvsEnumerator::new_binder(service, binder::BinderFeatures::default());
+
+    binder::add_service(service_name, service_binder.as_binder())
+        .expect(format!("Failed to register {}.", service_name).as_str());
+    info!("EVS Hardware Enumerator is ready");
+
+    binder::ProcessState::join_thread_pool();
+
+    // In normal operation, we don't expect the thread pool to exit.
+    info!("EVS Hardware Enumerator is shutting down");
+}
diff --git a/gnss/aidl/android/hardware/gnss/IGnss.aidl b/gnss/aidl/android/hardware/gnss/IGnss.aidl
index 8a22d6e..aaafe7f 100644
--- a/gnss/aidl/android/hardware/gnss/IGnss.aidl
+++ b/gnss/aidl/android/hardware/gnss/IGnss.aidl
@@ -217,10 +217,6 @@
      * Starts a location output stream using the IGnssCallback gnssLocationCb(), following the
      * settings from the most recent call to setPositionMode().
      *
-     * When a location output stream is in progress, calling setPositionMode() does not change the
-     * settings of the current location output stream. stop() and start() must be called to make the
-     * new settings effective.
-     *
      * This output must operate independently of any GNSS location batching operations,
      * see the IGnssBatching for details.
      */
@@ -310,10 +306,6 @@
     /**
      * Sets the GnssPositionMode parameter, its associated recurrence value, the time between fixes,
      * requested fix accuracy, time to first fix.
-     *
-     * If a location output stream is in progress, calling this method does not affect the settings
-     * of current location output stream. stop() and start() must be called to make the new settings
-     * effective.
      */
     void setPositionMode(in PositionModeOptions options);
 
diff --git a/nfc/aidl/vts/functional/Android.bp b/nfc/aidl/vts/functional/Android.bp
index d0b684b..d2508ce 100644
--- a/nfc/aidl/vts/functional/Android.bp
+++ b/nfc/aidl/vts/functional/Android.bp
@@ -49,6 +49,7 @@
 cc_test {
     name: "VtsNfcBehaviorChangesTest",
     defaults: [
+        "aconfig_lib_cc_shared_link.defaults",
         "VtsHalTargetTestDefaults",
         "use_libaidlvintf_gtest_helper_static",
     ],
@@ -65,6 +66,7 @@
         "system/nfc/utils/include",
     ],
     shared_libs: [
+        "liblog",
         "libbinder",
         "libbinder_ndk",
         "libnativehelper",
diff --git a/radio/aidl/vts/Android.bp b/radio/aidl/vts/Android.bp
index e83a7c1..9521068 100644
--- a/radio/aidl/vts/Android.bp
+++ b/radio/aidl/vts/Android.bp
@@ -25,6 +25,7 @@
 cc_test {
     name: "VtsHalRadioTargetTest",
     defaults: [
+        "aconfig_lib_cc_shared_link.defaults",
         "VtsHalTargetTestDefaults",
         "use_libaidlvintf_gtest_helper_static",
     ],
diff --git a/vibrator/bench/benchmark.cpp b/vibrator/bench/benchmark.cpp
index deaa6f2..8e8d78f 100644
--- a/vibrator/bench/benchmark.cpp
+++ b/vibrator/bench/benchmark.cpp
@@ -381,6 +381,16 @@
         return false;
     }
 
+    void waitForComplete(std::future<void>& callbackFuture) {
+        // Wait until the HAL has finished processing previous vibration before starting a new one,
+        // so the HAL state is consistent on each run and metrics are less noisy. Some of the newest
+        // HAL implementations are waiting on previous vibration cleanup and might be significantly
+        // slower, so make sure we measure vibrations on a clean slate.
+        if (callbackFuture.valid()) {
+            callbackFuture.wait_for(VIBRATION_CALLBACK_TIMEOUT);
+        }
+    }
+
     static void SlowBenchConfig(Benchmark* b) { b->Iterations(VIBRATION_ITERATIONS); }
 };
 
@@ -402,13 +412,7 @@
         return android::binder::Status::ok();
     }
 
-    void waitForComplete() {
-        // Wait until the HAL has finished processing previous vibration before starting a new one,
-        // so the HAL state is consistent on each run and metrics are less noisy. Some of the newest
-        // HAL implementations are waiting on previous vibration cleanup and might be significantly
-        // slower, so make sure we measure vibrations on a clean slate.
-        mPromise.get_future().wait_for(VIBRATION_CALLBACK_TIMEOUT);
-    }
+    std::future<void> getFuture() { return mPromise.get_future(); }
 
   private:
     std::promise<void> mPromise;
@@ -419,6 +423,8 @@
 
     for (auto _ : state) {
         auto cb = hasCapabilities(Aidl::IVibrator::CAP_ON_CALLBACK) ? new HalCallback() : nullptr;
+        // Grab the future before callback promise is destroyed by the HAL.
+        auto cbFuture = cb ? cb->getFuture() : std::future<void>();
 
         // Test
         if (shouldSkipWithError(state, mVibrator->on(ms, cb))) {
@@ -430,9 +436,7 @@
         if (shouldSkipWithError(state, mVibrator->off())) {
             return;
         }
-        if (cb) {
-            cb->waitForComplete();
-        }
+        waitForComplete(cbFuture);
         state.ResumeTiming();
     }
 });
@@ -442,6 +446,8 @@
 
     for (auto _ : state) {
         auto cb = hasCapabilities(Aidl::IVibrator::CAP_ON_CALLBACK) ? new HalCallback() : nullptr;
+        // Grab the future before callback promise is destroyed by the HAL.
+        auto cbFuture = cb ? cb->getFuture() : std::future<void>();
 
         // Setup
         state.PauseTiming();
@@ -457,9 +463,7 @@
 
         // Cleanup
         state.PauseTiming();
-        if (cb) {
-            cb->waitForComplete();
-        }
+        waitForComplete(cbFuture);
         state.ResumeTiming();
     }
 });
@@ -687,6 +691,8 @@
     for (auto _ : state) {
         auto cb = hasCapabilities(Aidl::IVibrator::CAP_PERFORM_CALLBACK) ? new HalCallback()
                                                                          : nullptr;
+        // Grab the future before callback promise is destroyed by the HAL.
+        auto cbFuture = cb ? cb->getFuture() : std::future<void>();
 
         // Test
         if (shouldSkipWithError(state, mVibrator->perform(effect, strength, cb, &lengthMs))) {
@@ -698,9 +704,7 @@
         if (shouldSkipWithError(state, mVibrator->off())) {
             return;
         }
-        if (cb) {
-            cb->waitForComplete();
-        }
+        waitForComplete(cbFuture);
         state.ResumeTiming();
     }
 });
@@ -800,6 +804,8 @@
 
     for (auto _ : state) {
         auto cb = new HalCallback();
+        // Grab the future before callback promise is moved and destroyed by the HAL.
+        auto cbFuture = cb->getFuture();
 
         // Test
         if (shouldSkipWithError(state, mVibrator->compose(effects, cb))) {
@@ -811,7 +817,7 @@
         if (shouldSkipWithError(state, mVibrator->off())) {
             return;
         }
-        cb->waitForComplete();
+        waitForComplete(cbFuture);
         state.ResumeTiming();
     }
 });