diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index f2a93f2..6aa5fc5 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -24,6 +24,14 @@
         </interface>
     </hal>
     <hal format="hidl" optional="true">
+        <name>android.hardware.automotive.audiocontrol</name>
+        <version>1.0</version>
+        <interface>
+            <name>IAudioControl</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="hidl" optional="true">
         <name>android.hardware.automotive.evs</name>
         <version>1.0</version>
         <interface>
@@ -104,6 +112,14 @@
         </interface>
     </hal>
     <hal format="hidl" optional="true">
+        <name>android.hardware.confirmationui</name>
+        <version>1.0</version>
+        <interface>
+            <name>IConfirmationUI</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="hidl" optional="true">
         <name>android.hardware.contexthub</name>
         <version>1.0</version>
         <interface>
diff --git a/current.txt b/current.txt
index f94be83..096b655 100644
--- a/current.txt
+++ b/current.txt
@@ -318,10 +318,10 @@
 7877ff8e4c1e48b825e6e5e66d050288e5656ed535c61cc7830a92ed4a9e1990 android.hardware.drm@1.1::IDrmFactory
 fef2f0ebde7704548fb203df46673ceb342272fc4fa9d0af25a980d2584a36e7 android.hardware.drm@1.1::IDrmPlugin
 5047a346ecce239404b9020959f60dd467318e9c17b290a6386bc3894df62c3c android.hardware.drm@1.1::types
-be794f5df97f134d6dcabb866b250d1305100e7ae07fb253b7841df890b931bb android.hardware.gnss@1.1::IGnss
+a830336ac8627d6432cfafb1b884343ad9f885dee0a5323e380e6d3c519156b8 android.hardware.gnss@1.1::IGnss
 8ad55bc35bb3a83e65c018bdfde7ae5ebc749ff2bf6b79412ded0bc6c89b97d8 android.hardware.gnss@1.1::IGnssCallback
 3c5183d7506010be57e0f748e3640fc2ded1ba955784b6256ba427f4c399591c android.hardware.gnss@1.1::IGnssConfiguration
-b054af24fbb70d54cde1fb5cba126809e7c4e863e8f9115dc492321dfbcbc993 android.hardware.gnss@1.1::IGnssMeasurement
+1a07d1383e847c3deb696ec7a2c9e33b9683772945660448a010b18063da67a4 android.hardware.gnss@1.1::IGnssMeasurement
 83e7a10ff3702147bd7ffa04567b20d407a3b16bbb7705644af44d919afe9103 android.hardware.gnss@1.1::IGnssMeasurementCallback
 0b96e0254e2168cfecb30c1ed5fb42681652cc00faa68c6e07568fafe64d1d50 android.hardware.graphics.common@1.1::types
 d9b40a5b09962a5a0780b10fe33a4e607e69e2e088fc83de88a584115b7cb1c0 android.hardware.graphics.composer@2.2::IComposer
diff --git a/gnss/1.1/IGnss.hal b/gnss/1.1/IGnss.hal
index 096f251..672f742 100644
--- a/gnss/1.1/IGnss.hal
+++ b/gnss/1.1/IGnss.hal
@@ -46,15 +46,17 @@
      * @param minIntervalMs Represents the time between fixes in milliseconds.
      * @param preferredAccuracyMeters Represents the requested fix accuracy in meters.
      * @param preferredTimeMs Represents the requested time to first fix in milliseconds.
-     * @param lowPowerMode When true, HAL must make strong tradeoffs to substantially restrict power
-     *     use. Specifically, in the case of a several second long minIntervalMs, the GNSS chipset
-     *     must not, on average, run power hungry operations like RF and signal searches for more
-     *     than one second per interval, and must make exactly one call to gnssSvStatusCb(), and
-     *     either zero or one call to GnssLocationCb() at each interval. When false, HAL must
-     *     operate in the nominal mode (similar to V1.0 where this flag wasn't present) and is
-     *     expected to make power and performance tradoffs such as duty-cycling when signal
-     *     conditions are good and more active searches to reacquire GNSS signals when no signals
-     *     are present.
+     * @param lowPowerMode When true, and IGnss.hal is the only client to the GNSS hardware, the
+     *     GNSS hardware must make strong tradeoffs to substantially restrict power use.
+     *     Specifically, in the case of a several second long minIntervalMs, the GNSS hardware must
+     *     not, on average, run power hungry operations like RF and signal searches for more than
+     *     one second per interval, and must make exactly one call to gnssSvStatusCb(), and either
+     *     zero or one call to GnssLocationCb() at each interval. When false, HAL must operate in
+     *     the nominal mode (similar to V1.0 where this flag wasn't present) and is expected to make
+     *     power and performance tradoffs such as duty-cycling when signal conditions are good and
+     *     more active searches to reacquire GNSS signals when no signals are present.
+     *     When there are additional clients using the GNSS hardware other than IGnss.hal, the GNSS
+     *     hardware may operate in a higher power mode, on behalf of those clients.
      *
      * @return success Returns true if successful.
      */
diff --git a/gnss/1.1/IGnssMeasurement.hal b/gnss/1.1/IGnssMeasurement.hal
index cd83ae3..6ed8e53 100644
--- a/gnss/1.1/IGnssMeasurement.hal
+++ b/gnss/1.1/IGnssMeasurement.hal
@@ -33,10 +33,11 @@
      * @param callback Handle to GnssMeasurement callback interface.
      * @param enableFullTracking If true, GNSS chipset must switch off duty cycling. In such mode
      *     no clock discontinuities are expected and, when supported, carrier phase should be
-     *     continuous in good signal conditions. All constellations and frequency bands that the
-     *     chipset supports must be reported in this mode. The GNSS chipset is allowed to consume
-     *     more power in this mode. If false, API must behave as in HAL V1_0, optimizing power via
-     *     duty cycling, constellations and frequency limits, etc.
+     *     continuous in good signal conditions. All non-blacklisted, healthy constellations,
+     *     satellites and frequency bands that the chipset supports must be reported in this mode.
+     *     The GNSS chipset is allowed to consume more power in this mode. If false, API must behave
+     *     as in HAL V1_0, optimizing power via duty cycling, constellations and frequency limits,
+     *     etc.
      *
      * @return initRet Returns SUCCESS if successful. Returns ERROR_ALREADY_INIT if a callback has
      *     already been registered without a corresponding call to 'close'. Returns ERROR_GENERIC