diff --git a/res/values/strings.xml b/res/values/strings.xml
index 4a9a7c7..555cbd1 100644
--- a/res/values/strings.xml
+++ b/res/values/strings.xml
@@ -3814,6 +3814,12 @@
     <!-- Bluetooth Tethering settings.  Message for untethering from a bluetooth device [CHAR LIMIT=50]-->
     <string name="bluetooth_untether_blank"><xliff:g id="device_name">%1$s</xliff:g> will be untethered.</string>
 
+    <!-- Ethernet Tethering settings-->
+    <!-- Label for ethernet tether checkbox [CHAR LIMIT=25]-->
+    <string name="ethernet_tether_checkbox_text">Ethernet tethering</string>
+    <!-- Ethernet Tethering subtext [CHAR LIMIT=70]-->
+    <string name="ethernet_tethering_subtext" product="default">Share phone\u2019s internet connection via USB Ethernet</string>
+
     <!-- Tethering footer info [CHAR LIMIT=NONE]-->
     <string name="tethering_footer_info">Use hotspot and tethering to provide internet to other devices through your mobile data connection. Apps can also create a hotspot to share content with nearby devices.</string>
     <!-- Tethering footer info for the device which supports Wi-Fi and Wi-Fi tethering enabled at the same time [CHAR LIMIT=NONE]-->
@@ -7261,7 +7267,7 @@
     <string name="contact_discovery_opt_in_dialog_title">Enable contact discovery?</string>
     <!-- Text displayed in the dialog shown when the user tries to enable Contact Discovery.
          [CHAR LIMIT=NONE]-->
-    <string name="contact_discovery_opt_in_dialog_message">Enabling this feature will allow your carrier access to phone numbers in your contacts in order to discover which calling features they support.</string>
+    <string name="contact_discovery_opt_in_dialog_message">All of the phone numbers in your contacts will be periodically sent to your carrier in order to discover which calling features are supported.</string>
     <!-- Preferred network type title.  [CHAR LIMIT=50] -->
     <string name="preferred_network_type_title">Preferred network type</string>
     <!-- Preferred network type summary.  [CHAR LIMIT=100] -->
@@ -8183,6 +8189,24 @@
     <!-- Button to cancel out of the dialog shown when the user has disabled bubbles at the feature level but tries to enable it for an app. [CHAR LIMIT=60] -->
     <string name="bubbles_feature_disabled_button_cancel">Cancel</string>
 
+    <!-- Bubble feature settings: Description for toggle when bubbles are turned on in notification settings [CHAR LIMIT=100] -->
+    <string name="notifications_bubble_setting_on_summary">On / Conversations can appear as floating icons</string>
+    <!-- Bubble feature settings: Title of the toggle to turn bubbles on and off [CHAR LIMIT=100] -->
+    <string name="notifications_bubble_setting_title">Allow apps to show bubbles</string>
+    <!-- Bubble feature settings: Description shown with the toggle to turn bubbles on and off [CHAR LIMIT=NONE]-->
+    <string name="notifications_bubble_setting_description">Some conversations will appear as floating icons on top of other apps</string>
+
+    <!-- Bubble app settings: option allowing all conversations from an app to bubble if the app sends bubbles [CHAR LIMIT=60]-->
+    <string name="bubble_app_setting_all">All conversations can bubble</string>
+    <!-- Bubble app settings: option allowing only user selected conversations from an app to bubble if the app sends bubbles [CHAR LIMIT=60] -->
+    <string name="bubble_app_setting_selected">Selected conversations can bubble</string>
+    <!-- Bubble app settings: option allowing no bubbles from the app [CHAR LIMIT=60] -->
+    <string name="bubble_app_setting_none">Nothing can bubble</string>
+    <!-- Bubble app settings: Title above a list of conversations that have been selected to bubble [CHAR LIMIT=60]-->
+    <string name="bubble_app_setting_selected_conversation_title">Conversations</string>
+    <!-- Bubble app settings: Title above a list of conversations that have been excluded from bubbling [CHAR LIMIT=60] -->
+    <string name="bubble_app_setting_excluded_conversation_title">Excluded</string>
+
     <!-- Configure notifications: title for swipe direction [CHAR LIMIT=60] -->
     <string name="swipe_direction_title">Swipe actions</string>
 
@@ -8548,58 +8572,98 @@
     <!-- Apps > App Details > Picture-in-picture > Description. [CHAR LIMIT=NONE] -->
     <string name="picture_in_picture_app_detail_summary">Allow this app to create a picture-in-picture window while the app is open or after you leave it (for example, to continue watching a video).  This window displays on top of other apps you\'re using.</string>
 
-    <!-- Special access > Title for managing the settings where users opt-in to connect a work app
-    to its personal equivalent, allowing cross-profile communication. [CHAR LIMIT=50] -->
-    <string name="interact_across_profiles_title" translatable="false">Connected personal and work apps</string>
+    <!-- Settings label. This setting shows a user's connected work and personal apps.
+    When a user connects select work and personal apps, they can access work and personal data together. [CHAR LIMIT=50] -->
+    <string name="interact_across_profiles_title">Connected work &amp; personal apps</string>
 
-    <!-- Special access > Connected personal and work apps > Text to display when the list is empty. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_empty_text" translatable="false">No connected apps</string>
+    <!-- Settings subtext. This text is shown when a user doesn't have any connected apps. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_empty_text">No connected apps</string>
 
-    <!-- Special access > Connected personal and work apps > Additional keywords to search for. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_keywords" translatable="false">cross profile connected app apps work and personal</string>
+    <!-- Search keywords. If a user is searching for the "Connected work & personal apps" feature in Settings,
+    these keywords will surface that feature. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_keywords">cross profile connected app apps work and personal</string>
 
-    <!-- Apps > App Details > Advanced section string title. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_app_detail_title" translatable="false">Connected personal and work apps</string>
+    <!-- Settings header. This setting shows a user's connected work and personal apps.
+    When a user connects select work and personal apps, they can access work and personal data together. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_app_detail_title">Connected work &amp; personal apps</string>
 
-    <!-- Apps > App Details > Connected personal and work apps > Switch title. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_switch_enabled" translatable="false">Connected</string>
+    <!-- Toggle label. This text is shown when a user's work and personal apps are connected. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_switch_enabled">Connected</string>
 
-    <!-- Apps > App Details > Connected personal and work apps > Switch title. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_switch_disabled" translatable="false">Connect these apps</string>
+    <!-- Toggle label. This text is shown when a user can connect specific work and personal apps.
+    The apps they can connect are shown above this toggle. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_switch_disabled">Connect these apps</string>
 
-    <!-- Apps > App Details > Connected personal and work apps > Description. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_summary_1" translatable="false">Connected apps share permissions and can access each other\u2019s data.</string>
+    <!-- Settings text. This text lets a user know that if they connect work and personal apps,
+    they will share permissions and can access each other's data. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_summary_1">Connected apps share permissions and can access each other\u2019s data.</string>
 
-    <!-- Apps > App Details > Connected personal and work apps > Description. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_summary_2" translatable="false">Only connect apps that you trust with your personal data. Work apps may expose your data to your IT admin.</string>
+    <!-- Settings text. This text lets a user know that they should only connect work and personal apps
+    if they trust the work app with their personal data. The work app could potentially show that data
+    to the user's IT admin. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_summary_2">Only connect apps that you trust with your personal data. Work apps may expose your data to your IT admin.</string>
 
-    <!-- Apps > App Details > Connected personal and work apps > Consent dialog title. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_consent_dialog_title" translatable="false">Trust work %1$s with your personal data?</string>
+    <!-- Dialog title. This dialog is shown when a user tries to connect a work app to a personal
+    app (e.g. their work Calendar to their personal Calendar), and it's confirming that they should
+    connect the apps only if they trust the work app with their personal data. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_consent_dialog_title">Trust work <xliff:g id="name" example="Calendar">%1$s</xliff:g> with your personal data?</string>
 
-    <!-- Apps > App Details > Connected personal and work apps > Consent dialog description. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_consent_dialog_summary" translatable="false">%1$s may expose your personal data to your IT admin.</string>
+    <!-- Dialog text. This dialog is shown when a user tries to connect a work app to a personal
+    app (e.g. their work Calendar to their personal Calendar), and it's confirming that they should
+    connect the apps only if they trust the work app with their personal data.
+    The placeholder is the app name. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_consent_dialog_summary"><xliff:g id="name" example="Calendar">%1$s</xliff:g> may expose your personal data to your IT admin.</string>
 
-    <!-- Apps > App Details > Connected personal and work apps > Consent dialog App data title. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_consent_dialog_app_data_title" translatable="false">App data</string>
+    <!-- Title of a section in a dialog. This section shows the app data that will be
+    accessible when work and personal apps are connected. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_consent_dialog_app_data_title">App data</string>
 
-    <!-- Apps > App Details > Connected personal and work apps > Consent dialog App data description. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_consent_dialog_app_data_summary" translatable="false">It can access data in your personal %1$s app.</string>
+    <!-- Dialog text. This text lets the user know that their work app (e.g. Calendar) will be
+    able to access data in their personal app. The placeholder is the app name. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_consent_dialog_app_data_summary">This app can access data in your personal <xliff:g id="name" example="Calendar">%1$s</xliff:g> app.</string>
 
-    <!-- Apps > App Details > Connected personal and work apps > Consent dialog Permissions title. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_consent_dialog_permissions_title" translatable="false">Permissions</string>
+    <!-- Title of a section in a dialog. This section shows the permissions that will be accessible
+    when work and personal apps are connected. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_consent_dialog_permissions_title">Permissions</string>
 
-    <!-- Apps > App Details > Connected personal and work apps > Consent dialog Permissions description. [CHAR LIMIT=NONE] -->
-    <string name="interact_across_profiles_consent_dialog_permissions_summary" translatable="false">It can use your personal %1$s app\u2019s permissions, like access to location, storage, or contacts.</string>
+    <!-- Dialog text. This text lets the user know that their work app (e.g. Calendar) will be able
+    to use permissions in their personal app. The placeholder is the app name. [CHAR LIMIT=NONE] -->
+    <string name="interact_across_profiles_consent_dialog_permissions_summary">This app can use your personal <xliff:g id="name" example="Calendar">%1$s</xliff:g> app\u2019s permissions, like access to location, storage, or contacts.</string>
 
-    <!-- Summary of preference to manage connected personal and work apps, informing the user that currently no apps are connected -->
-    <string name="interact_across_profiles_number_of_connected_apps_none" translatable="false">No apps connected</string>
+    <!-- Summary of preference to manage connected work and personal apps, informing the user that
+    currently no apps are connected [CHAR LIMIT=NONE]-->
+    <string name="interact_across_profiles_number_of_connected_apps_none">No apps connected</string>
 
-    <!-- Summary of preference to manage connected personal and work apps, informing the user how many apps are connected -->
-    <plurals name="interact_across_profiles_number_of_connected_apps" translatable="false">
+    <!-- Summary of preference to manage connected work and personal apps, informing the user how many apps are connected -->
+    <plurals name="interact_across_profiles_number_of_connected_apps">
         <item quantity="one"><xliff:g id="count">%d</xliff:g> app connected</item>
         <item quantity="other"><xliff:g id="count">%d</xliff:g> apps connected</item>
     </plurals>
 
+    <!-- Banner title. This banner lets a user know that they need to install an app in their
+    work profile in order to connect it to the corresponding personal app.
+    The placeholder would be the app name (e.g. Calendar). [CHAR LIMIT=50]-->
+    <string name="interact_across_profiles_install_work_app_title">Install <xliff:g id="name" example="Calendar">%1$s</xliff:g> in your work profile</string>
+
+    <!-- Banner text. This banner lets a user know that they need to install an app in their
+    work profile in order to connect it to the corresponding personal app.
+    The placeholder would be the app name (e.g. Calendar). [CHAR LIMIT=NONE]-->
+    <string name="interact_across_profiles_install_work_app_summary">To connect these apps, install the <xliff:g id="name" example="Calendar">%1$s</xliff:g> app in your work profile</string>
+
+    <!-- Banner title. This banner lets a user know that they need to install an app in their
+    personal profile in order to connect it to the corresponding work app.
+    The placeholder would be the app name (e.g. Calendar). [CHAR LIMIT=50]-->
+    <string name="interact_across_profiles_install_personal_app_title">Install <xliff:g id="name" example="Calendar">%1$s</xliff:g> in your personal profile</string>
+
+    <!-- Banner text. This banner lets a user know that they need to install an app in their
+    personal profile in order to connect it to the corresponding work app.
+    The placeholder would be the app name (e.g. Calendar). [CHAR LIMIT=NONE]-->
+    <string name="interact_across_profiles_install_personal_app_summary">To connect these apps, install the <xliff:g id="name" example="Calendar">%1$s</xliff:g> app in your personal profile</string>
+
+    <!-- Button text. This button takes a user to the app store so they can download and
+    install the app they need. [CHAR LIMIT=50]-->
+    <string name="interact_across_profiles_install_app_action">Get the app</string>
+
     <!-- Sound & notification > Advanced section: Title for managing Do Not Disturb access option. [CHAR LIMIT=40] -->
     <string name="manage_zen_access_title">Do Not Disturb access</string>
 
@@ -10487,6 +10551,11 @@
     <!-- [CHAR LIMIT=60] Name of dev option to enable extra quick settings tiles -->
     <string name="quick_settings_developer_tiles">Quick settings developer tiles</string>
 
+    <!-- [CHAR LIMIT=50] Setting title to disable the adb authorization timeout feature. -->
+    <string name="adb_authorization_timeout_title">Disable adb authorization timeout</string>
+    <!-- [CHAR LIMIT=NONE] Setting summary explaining the disablement of the automatic adb authorization timeout. -->
+    <string name="adb_authorization_timeout_summary">Disable automatic revocation of adb authorizations for systems that have not reconnected within the default (7 days) or user-configured (minimum 1 day) amount of time.</string>
+
     <!-- [CHAR LIMIT=25] Title of developer tile to toggle winscope trace -->
     <string name="winscope_trace_quick_settings_title">Winscope Trace</string>
 
@@ -11808,4 +11877,9 @@
 
     <!-- Button label to stop casting on media device. [CHAR LIMIT=40 -->
     <string name="media_output_panel_stop_casting_button">Stop casting</string>
+
+    <!-- Title for the 5G limited VoLTE dialog. [CHAR LIMIT=50] -->
+    <string name="volte_5G_limited_title">Turn off VoLTE?</string>
+    <!-- Content description for the 5G limited VoLTE dialog. [CHAR LIMIT=NONE] -->
+    <string name="volte_5G_limited_text">This also turns off your 5G connection.\nDuring a voice call, you can\u2019t use the internet and some apps may not work.</string>
 </resources>
diff --git a/res/xml/development_settings.xml b/res/xml/development_settings.xml
index b4d0bba..48a0850 100644
--- a/res/xml/development_settings.xml
+++ b/res/xml/development_settings.xml
@@ -149,6 +149,11 @@
             settings:keywords="@string/keywords_adb_wireless" />
 
         <SwitchPreference
+            android:key="adb_authorization_timeout"
+            android:title="@string/adb_authorization_timeout_title"
+            android:summary="@string/adb_authorization_timeout_summary" />
+
+        <SwitchPreference
             android:key="enable_terminal"
             android:title="@string/enable_terminal_title"
             android:summary="@string/enable_terminal_summary" />
diff --git a/res/xml/tether_prefs.xml b/res/xml/tether_prefs.xml
index abc49cc..9367a9b 100644
--- a/res/xml/tether_prefs.xml
+++ b/res/xml/tether_prefs.xml
@@ -38,6 +38,12 @@
         android:summary="@string/bluetooth_tethering_subtext"
         settings:keywords="@string/keywords_hotspot_tethering" />
 
+    <SwitchPreference
+        android:key="enable_ethernet_tethering"
+        android:title="@string/ethernet_tether_checkbox_text"
+        android:summary="@string/ethernet_tethering_subtext"
+        settings:keywords="@string/keywords_hotspot_tethering" />
+
     <Preference
         android:key="disabled_on_data_saver"
         android:summary="@string/tether_settings_disabled_on_data_saver"
diff --git a/src/com/android/settings/TetherSettings.java b/src/com/android/settings/TetherSettings.java
index cce2010..c61e573 100644
--- a/src/com/android/settings/TetherSettings.java
+++ b/src/com/android/settings/TetherSettings.java
@@ -18,6 +18,7 @@
 
 import static android.net.ConnectivityManager.TETHERING_BLUETOOTH;
 import static android.net.ConnectivityManager.TETHERING_USB;
+import static android.net.TetheringManager.TETHERING_ETHERNET;
 
 import android.app.Activity;
 import android.app.settings.SettingsEnums;
@@ -31,12 +32,16 @@
 import android.content.pm.PackageManager;
 import android.hardware.usb.UsbManager;
 import android.net.ConnectivityManager;
+import android.net.EthernetManager;
+import android.net.TetheringManager;
 import android.net.wifi.WifiManager;
 import android.os.Bundle;
 import android.os.Environment;
 import android.os.Handler;
+import android.os.HandlerExecutor;
 import android.os.UserManager;
 import android.provider.SearchIndexableResource;
+import android.text.TextUtils;
 import android.util.FeatureFlagUtils;
 
 import androidx.annotation.VisibleForTesting;
@@ -71,6 +76,7 @@
     static final String KEY_USB_TETHER_SETTINGS = "usb_tether_settings";
     @VisibleForTesting
     static final String KEY_ENABLE_BLUETOOTH_TETHERING = "enable_bluetooth_tethering";
+    private static final String KEY_ENABLE_ETHERNET_TETHERING = "enable_ethernet_tethering";
     private static final String KEY_DATA_SAVER_FOOTER = "disabled_on_data_saver";
     @VisibleForTesting
     static final String KEY_TETHER_PREFS_FOOTER = "tether_prefs_footer";
@@ -81,15 +87,22 @@
 
     private SwitchPreference mBluetoothTether;
 
+    private SwitchPreference mEthernetTether;
+
     private BroadcastReceiver mTetherChangeReceiver;
 
     private String[] mUsbRegexs;
     private String[] mBluetoothRegexs;
+    private String mEthernetRegex;
     private AtomicReference<BluetoothPan> mBluetoothPan = new AtomicReference<>();
 
     private Handler mHandler = new Handler();
     private OnStartTetheringCallback mStartTetheringCallback;
     private ConnectivityManager mCm;
+    private EthernetManager mEm;
+    private TetheringManager mTm;
+    private TetheringEventCallback mTetheringEventCallback;
+    private EthernetListener mEthernetListener;
 
     private WifiTetherPreferenceController mWifiTetherPreferenceController;
 
@@ -144,17 +157,23 @@
 
         mUsbTether = (SwitchPreference) findPreference(KEY_USB_TETHER_SETTINGS);
         mBluetoothTether = (SwitchPreference) findPreference(KEY_ENABLE_BLUETOOTH_TETHERING);
+        mEthernetTether = (SwitchPreference) findPreference(KEY_ENABLE_ETHERNET_TETHERING);
         setFooterPreferenceTitle();
 
         mDataSaverBackend.addListener(this);
 
         mCm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
+        mEm = (EthernetManager) getSystemService(Context.ETHERNET_SERVICE);
+        mTm = (TetheringManager) getSystemService(Context.TETHERING_SERVICE);
 
         mUsbRegexs = mCm.getTetherableUsbRegexs();
         mBluetoothRegexs = mCm.getTetherableBluetoothRegexs();
+        mEthernetRegex = getContext().getResources().getString(
+                com.android.internal.R.string.config_ethernet_iface_regex);
 
         final boolean usbAvailable = mUsbRegexs.length != 0;
         final boolean bluetoothAvailable = mBluetoothRegexs.length != 0;
+        final boolean ethernetAvailable = !TextUtils.isEmpty(mEthernetRegex);
 
         if (!usbAvailable || Utils.isMonkeyRunning()) {
             getPreferenceScreen().removePreference(mUsbTether);
@@ -172,6 +191,7 @@
                 mBluetoothTether.setChecked(false);
             }
         }
+        if (!ethernetAvailable) getPreferenceScreen().removePreference(mEthernetTether);
         // Set initial state based on Data Saver mode.
         onDataSaverChanged(mDataSaverBackend.isDataSaverEnabled());
     }
@@ -194,6 +214,7 @@
         mDataSaverEnabled = isDataSaving;
         mUsbTether.setEnabled(!mDataSaverEnabled);
         mBluetoothTether.setEnabled(!mDataSaverEnabled);
+        mEthernetTether.setEnabled(!mDataSaverEnabled);
         mDataSaverFooter.setVisible(mDataSaverEnabled);
     }
 
@@ -221,6 +242,7 @@
         @Override
         public void onReceive(Context content, Intent intent) {
             String action = intent.getAction();
+            // TODO: stop using ACTION_TETHER_STATE_CHANGED and use mTetheringEventCallback instead.
             if (action.equals(ConnectivityManager.ACTION_TETHER_STATE_CHANGED)) {
                 // TODO - this should understand the interface types
                 ArrayList<String> available = intent.getStringArrayListExtra(
@@ -279,6 +301,8 @@
         final Activity activity = getActivity();
 
         mStartTetheringCallback = new OnStartTetheringCallback(this);
+        mTetheringEventCallback = new TetheringEventCallback();
+        mTm.registerTetheringEventCallback(new HandlerExecutor(mHandler), mTetheringEventCallback);
 
         mMassStorageActive = Environment.MEDIA_SHARED.equals(Environment.getExternalStorageState());
         mTetherChangeReceiver = new TetherChangeReceiver();
@@ -301,6 +325,9 @@
 
         if (intent != null) mTetherChangeReceiver.onReceive(activity, intent);
 
+        mEthernetListener = new EthernetListener();
+        mEm.addListener(mEthernetListener);
+
         updateState();
     }
 
@@ -312,8 +339,12 @@
             return;
         }
         getActivity().unregisterReceiver(mTetherChangeReceiver);
+        mTm.unregisterTetheringEventCallback(mTetheringEventCallback);
+        mEm.removeListener(mEthernetListener);
         mTetherChangeReceiver = null;
         mStartTetheringCallback = null;
+        mTetheringEventCallback = null;
+        mEthernetListener = null;
     }
 
     private void updateState() {
@@ -327,6 +358,7 @@
             String[] errored) {
         updateUsbState(available, tethered, errored);
         updateBluetoothState();
+        updateEthernetState(available, tethered);
     }
 
     private void updateUsbState(String[] available, String[] tethered,
@@ -390,6 +422,31 @@
         }
     }
 
+    private void updateEthernetState(String[] available, String[] tethered) {
+
+        boolean isAvailable = false;
+        boolean isTethered = false;
+
+        for (String s : available) {
+            if (s.matches(mEthernetRegex)) isAvailable = true;
+        }
+
+        for (String s : tethered) {
+            if (s.matches(mEthernetRegex)) isTethered = true;
+        }
+
+        if (isTethered) {
+            mEthernetTether.setEnabled(!mDataSaverEnabled);
+            mEthernetTether.setChecked(true);
+        } else if (isAvailable || mEm.isAvailable()) {
+            mEthernetTether.setEnabled(!mDataSaverEnabled);
+            mEthernetTether.setChecked(false);
+        } else {
+            mEthernetTether.setEnabled(false);
+            mEthernetTether.setChecked(false);
+        }
+    }
+
     public static boolean isProvisioningNeededButUnavailable(Context context) {
         return (TetherUtil.isProvisioningNeeded(context)
                 && !isIntentAvailable(context));
@@ -438,6 +495,12 @@
             } else {
                 mCm.stopTethering(TETHERING_BLUETOOTH);
             }
+        } else if (preference == mEthernetTether) {
+            if (mEthernetTether.isChecked()) {
+                startTethering(TETHERING_ETHERNET);
+            } else {
+                mCm.stopTethering(TETHERING_ETHERNET);
+            }
         }
 
         return super.onPreferenceTreeClick(preference);
@@ -495,6 +558,13 @@
                     if (!bluetoothAvailable) {
                         keys.add(KEY_ENABLE_BLUETOOTH_TETHERING);
                     }
+
+                    final boolean ethernetAvailable = !TextUtils.isEmpty(
+                            context.getResources().getString(
+                                    com.android.internal.R.string.config_ethernet_iface_regex));
+                    if (!ethernetAvailable) {
+                        keys.add(KEY_ENABLE_ETHERNET_TETHERING);
+                    }
                     return keys;
                 }
     };
@@ -524,4 +594,17 @@
             }
         }
     }
+
+    private final class TetheringEventCallback implements TetheringManager.TetheringEventCallback {
+        @Override
+        public void onTetheredInterfacesChanged(List<String> interfaces) {
+            updateState();
+        }
+    }
+
+    private final class EthernetListener implements EthernetManager.Listener {
+        public void onAvailabilityChanged(String iface, boolean isAvailable) {
+            mHandler.post(TetherSettings.this::updateState);
+        }
+    }
 }
diff --git a/src/com/android/settings/development/AdbAuthorizationTimeoutPreferenceController.java b/src/com/android/settings/development/AdbAuthorizationTimeoutPreferenceController.java
new file mode 100644
index 0000000..79aa8e6
--- /dev/null
+++ b/src/com/android/settings/development/AdbAuthorizationTimeoutPreferenceController.java
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+package com.android.settings.development;
+
+import android.content.Context;
+import android.provider.Settings;
+
+import androidx.preference.Preference;
+import androidx.preference.SwitchPreference;
+
+import com.android.settingslib.development.DeveloperOptionsPreferenceController;
+
+/**
+ * Preference controller for the developer option to disable the automatic revocation of adb
+ * authorizations.
+ */
+public class AdbAuthorizationTimeoutPreferenceController extends
+        DeveloperOptionsPreferenceController implements Preference.OnPreferenceChangeListener {
+    private static final String ADB_AUTHORIZATION_TIMEOUT_KEY = "adb_authorization_timeout";
+
+    private final Context mContext;
+
+    public AdbAuthorizationTimeoutPreferenceController(Context context) {
+        super(context);
+        mContext = context;
+    }
+
+    @Override
+    public String getPreferenceKey() {
+        return ADB_AUTHORIZATION_TIMEOUT_KEY;
+    }
+
+    @Override
+    public void updateState(Preference preference) {
+        final long authTimeout = Settings.Global.getLong(mContext.getContentResolver(),
+                Settings.Global.ADB_ALLOWED_CONNECTION_TIME,
+                Settings.Global.DEFAULT_ADB_ALLOWED_CONNECTION_TIME);
+        // An authTimeout of 0 indicates this preference is enabled and adb authorizations will not
+        // be automatically revoked.
+        ((SwitchPreference) mPreference).setChecked(authTimeout == 0);
+    }
+
+    @Override
+    public boolean onPreferenceChange(Preference preference, Object newValue) {
+        writeSetting((boolean) newValue);
+        return true;
+    }
+
+    @Override
+    public void onDeveloperOptionsSwitchDisabled() {
+        super.onDeveloperOptionsSwitchDisabled();
+        writeSetting(false);
+        ((SwitchPreference) mPreference).setChecked(false);
+    }
+
+    private void writeSetting(boolean isEnabled) {
+        long authTimeout = 0;
+        if (!isEnabled) {
+            authTimeout = Settings.Global.DEFAULT_ADB_ALLOWED_CONNECTION_TIME;
+        }
+        Settings.Global.putLong(mContext.getContentResolver(),
+                Settings.Global.ADB_ALLOWED_CONNECTION_TIME,
+                authTimeout);
+    }
+}
diff --git a/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java b/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
index 8c79f2a..c349de9 100644
--- a/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
+++ b/src/com/android/settings/development/DevelopmentSettingsDashboardFragment.java
@@ -444,6 +444,7 @@
         controllers.add(new AdbPreferenceController(context, fragment));
         controllers.add(new ClearAdbKeysPreferenceController(context, fragment));
         controllers.add(new WirelessDebuggingPreferenceController(context, lifecycle));
+        controllers.add(new AdbAuthorizationTimeoutPreferenceController(context));
         controllers.add(new LocalTerminalPreferenceController(context));
         controllers.add(new BugReportInPowerPreferenceController(context));
         controllers.add(new AutomaticSystemServerHeapDumpPreferenceController(context));
diff --git a/src/com/android/settings/development/compat/PlatformCompatDashboard.java b/src/com/android/settings/development/compat/PlatformCompatDashboard.java
index 7b79da7..2f2c750 100644
--- a/src/com/android/settings/development/compat/PlatformCompatDashboard.java
+++ b/src/com/android/settings/development/compat/PlatformCompatDashboard.java
@@ -100,7 +100,7 @@
     public void onActivityCreated(Bundle savedInstanceState) {
         super.onActivityCreated(savedInstanceState);
         try {
-            mChanges = getPlatformCompat().listAllChanges();
+            mChanges = getPlatformCompat().listUIChanges();
         } catch (RemoteException e) {
             throw new RuntimeException("Could not list changes!", e);
         }
diff --git a/src/com/android/settings/homepage/contextualcards/slices/NotificationChannelSlice.java b/src/com/android/settings/homepage/contextualcards/slices/NotificationChannelSlice.java
index 5ac407d..2716e4c 100644
--- a/src/com/android/settings/homepage/contextualcards/slices/NotificationChannelSlice.java
+++ b/src/com/android/settings/homepage/contextualcards/slices/NotificationChannelSlice.java
@@ -467,7 +467,7 @@
                 return true;
             }
 
-            return channel.isBlockableSystem()
+            return channel.isBlockable()
                     || channel.getImportance() == IMPORTANCE_NONE;
         }
 
diff --git a/src/com/android/settings/network/telephony/ContactDiscoveryPreferenceController.java b/src/com/android/settings/network/telephony/ContactDiscoveryPreferenceController.java
index f3fdcc9..21d49d9 100644
--- a/src/com/android/settings/network/telephony/ContactDiscoveryPreferenceController.java
+++ b/src/com/android/settings/network/telephony/ContactDiscoveryPreferenceController.java
@@ -42,7 +42,7 @@
         implements LifecycleObserver {
     private static final String TAG = "ContactDiscoveryPref";
     private static final Uri UCE_URI = Uri.withAppendedPath(Telephony.SimInfo.CONTENT_URI,
-            Telephony.SimInfo.IMS_RCS_UCE_ENABLED);
+            Telephony.SimInfo.COLUMN_IMS_RCS_UCE_ENABLED);
 
     private ImsManager mImsManager;
     private CarrierConfigManager mCarrierConfigManager;
diff --git a/src/com/android/settings/notification/app/NotificationPreferenceController.java b/src/com/android/settings/notification/app/NotificationPreferenceController.java
index be1ce1b..ecba95b 100644
--- a/src/com/android/settings/notification/app/NotificationPreferenceController.java
+++ b/src/com/android/settings/notification/app/NotificationPreferenceController.java
@@ -134,7 +134,7 @@
                 return channel.getImportance() == IMPORTANCE_NONE;
             }
 
-            return channel.isBlockableSystem() || !mAppRow.systemApp
+            return channel.isBlockable() || !mAppRow.systemApp
                     || channel.getImportance() == IMPORTANCE_NONE;
         }
         return false;
diff --git a/src/com/android/settings/wifi/UseOpenWifiPreferenceController.java b/src/com/android/settings/wifi/UseOpenWifiPreferenceController.java
index 27cf1e2..44114e5 100644
--- a/src/com/android/settings/wifi/UseOpenWifiPreferenceController.java
+++ b/src/com/android/settings/wifi/UseOpenWifiPreferenceController.java
@@ -100,6 +100,10 @@
 
     @Override
     public int getAvailabilityStatus() {
+        // It is possible that mEnableUseWifiComponentName is no longer enabled by
+        // USE_OPEN_WIFI_PACKAGE. So update this component to reflect correct availability.
+        updateEnableUseWifiComponentName();
+        checkForFeatureSupportedScorers();
         return mDoFeatureSupportedScorersExist ? AVAILABLE : CONDITIONALLY_UNAVAILABLE;
     }
 
diff --git a/tests/robotests/src/com/android/settings/development/AdbAuthorizationTimeoutPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/development/AdbAuthorizationTimeoutPreferenceControllerTest.java
new file mode 100644
index 0000000..bc3544d
--- /dev/null
+++ b/tests/robotests/src/com/android/settings/development/AdbAuthorizationTimeoutPreferenceControllerTest.java
@@ -0,0 +1,134 @@
+/*
+ * Copyright (C) 2020 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.
+ */
+
+package com.android.settings.development;
+
+import static junit.framework.Assert.assertEquals;
+
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.ContentResolver;
+import android.content.Context;
+import android.provider.Settings;
+
+import androidx.preference.PreferenceScreen;
+import androidx.preference.SwitchPreference;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.mockito.Mock;
+import org.mockito.MockitoAnnotations;
+import org.robolectric.RobolectricTestRunner;
+import org.robolectric.RuntimeEnvironment;
+
+@RunWith(RobolectricTestRunner.class)
+public class AdbAuthorizationTimeoutPreferenceControllerTest {
+    @Mock
+    private PreferenceScreen mPreferenceScreen;
+    @Mock
+    private DevelopmentSettingsDashboardFragment mFragment;
+
+    private Context mContext;
+    private ContentResolver mContentResolver;
+    private SwitchPreference mPreference;
+    private AdbAuthorizationTimeoutPreferenceController mPreferenceController;
+    private long mInitialAuthTimeout;
+
+    @Before
+    public void setUp() throws Exception {
+        MockitoAnnotations.initMocks(this);
+        mContext = RuntimeEnvironment.application;
+        mContentResolver = mContext.getContentResolver();
+
+        mPreferenceController = new AdbAuthorizationTimeoutPreferenceController(mContext);
+        mPreference = spy(new SwitchPreference(mContext));
+        when(mPreferenceScreen.findPreference(mPreferenceController.getPreferenceKey())).thenReturn(
+                mPreference);
+        mPreferenceController.displayPreference(mPreferenceScreen);
+
+        mInitialAuthTimeout = Settings.Global.getLong(mContext.getContentResolver(),
+                Settings.Global.ADB_ALLOWED_CONNECTION_TIME,
+                Settings.Global.DEFAULT_ADB_ALLOWED_CONNECTION_TIME);
+    }
+
+    @After
+    public void tearDown() throws Exception {
+        Settings.Global.putLong(mContext.getContentResolver(),
+                Settings.Global.ADB_ALLOWED_CONNECTION_TIME, mInitialAuthTimeout);
+    }
+
+    @Test
+    public void onPreferenceChange_enableSetting_timeoutSetToZero() throws Exception {
+        // This developer option disables the automatic adb authorization revocation by setting
+        // the timeout value to 0 when enabled.
+        mPreferenceController.onPreferenceChange(mPreference, true);
+        long authTimeout = Settings.Global.getLong(mContentResolver,
+                Settings.Global.ADB_ALLOWED_CONNECTION_TIME);
+
+        assertEquals(0, authTimeout);
+    }
+
+    @Test
+    public void onPreferenceChange_enableAndDisableSetting_timeoutSetToDefault()
+            throws Exception {
+        // A non-default setting value is not saved when this developer option is enabled and the
+        // setting value is set to 0. If the user subsequently disables the option the setting
+        // value is restored to the default value.
+        Settings.Global.putLong(mContentResolver, Settings.Global.ADB_ALLOWED_CONNECTION_TIME, 1);
+
+        mPreferenceController.onPreferenceChange(mPreference, true);
+        mPreferenceController.onPreferenceChange(mPreference, false);
+        long authTimeout = Settings.Global.getLong(mContentResolver,
+                Settings.Global.ADB_ALLOWED_CONNECTION_TIME);
+
+        assertEquals(Settings.Global.DEFAULT_ADB_ALLOWED_CONNECTION_TIME, authTimeout);
+    }
+
+    @Test
+    public void updateState_timeoutSetToZero_preferenceDisplayedEnabled() throws Exception {
+        Settings.Global.putLong(mContentResolver, Settings.Global.ADB_ALLOWED_CONNECTION_TIME, 0);
+
+        mPreferenceController.updateState(mPreference);
+
+        verify(mPreference).setChecked(true);
+    }
+
+    @Test
+    public void updateState_timeoutSetToDefault_preferenceDisplayedDisabled() throws Exception {
+        Settings.Global.putLong(mContentResolver, Settings.Global.ADB_ALLOWED_CONNECTION_TIME,
+                Settings.Global.DEFAULT_ADB_ALLOWED_CONNECTION_TIME);
+
+        mPreferenceController.updateState(mPreference);
+
+        verify(mPreference).setChecked(false);
+    }
+
+    @Test
+    public void onDeveloperOptionsSwitchDisabled_preferenceAndTimeoutDisabled() throws Exception {
+        mPreferenceController.onDeveloperOptionsSwitchDisabled();
+
+        long authTimeout = Settings.Global.getLong(mContentResolver,
+                Settings.Global.ADB_ALLOWED_CONNECTION_TIME);
+
+        assertEquals(Settings.Global.DEFAULT_ADB_ALLOWED_CONNECTION_TIME, authTimeout);
+        verify(mPreference).setChecked(false);
+    }
+}
+
diff --git a/tests/robotests/src/com/android/settings/development/compat/PlatformCompatDashboardTest.java b/tests/robotests/src/com/android/settings/development/compat/PlatformCompatDashboardTest.java
index 1e59167..e59bd0b 100644
--- a/tests/robotests/src/com/android/settings/development/compat/PlatformCompatDashboardTest.java
+++ b/tests/robotests/src/com/android/settings/development/compat/PlatformCompatDashboardTest.java
@@ -93,7 +93,7 @@
         mChanges[2] = new CompatibilityChangeInfo(3L, "Enabled_After_SDK_1_1", 1, false, false, "");
         mChanges[3] = new CompatibilityChangeInfo(4L, "Enabled_After_SDK_1_2", 1, false, false, "");
         mChanges[4] = new CompatibilityChangeInfo(5L, "Enabled_After_SDK_2", 2, false, false, "");
-        when(mPlatformCompat.listAllChanges()).thenReturn(mChanges);
+        when(mPlatformCompat.listUIChanges()).thenReturn(mChanges);
         when(mPlatformCompat.getOverrideValidator()).thenReturn(mOverrideValidator);
         // By default, allow any change
         when(mOverrideValidator.getOverrideAllowedState(anyLong(),anyString()))
diff --git a/tests/robotests/src/com/android/settings/network/telephony/ContactDiscoveryPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/network/telephony/ContactDiscoveryPreferenceControllerTest.java
index 45a4563..0370bfa 100644
--- a/tests/robotests/src/com/android/settings/network/telephony/ContactDiscoveryPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/network/telephony/ContactDiscoveryPreferenceControllerTest.java
@@ -64,7 +64,7 @@
 
     private static final int TEST_SUB_ID = 2;
     private static final Uri UCE_URI = Uri.withAppendedPath(Telephony.SimInfo.CONTENT_URI,
-            Telephony.SimInfo.IMS_RCS_UCE_ENABLED);
+            Telephony.SimInfo.COLUMN_IMS_RCS_UCE_ENABLED);
 
     @Mock private ImsManager mImsManager;
     @Mock private ImsRcsManager mImsRcsManager;
diff --git a/tests/robotests/src/com/android/settings/notification/app/BlockPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/notification/app/BlockPreferenceControllerTest.java
index b83ab77..d203c47 100644
--- a/tests/robotests/src/com/android/settings/notification/app/BlockPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/notification/app/BlockPreferenceControllerTest.java
@@ -200,7 +200,7 @@
         NotificationBackend.AppRow appRow = new NotificationBackend.AppRow();
         appRow.systemApp = true;
         NotificationChannel channel = new NotificationChannel("", "", IMPORTANCE_DEFAULT);
-        channel.setBlockableSystem(true);
+        channel.setBlockable(true);
         mController.onResume(appRow, channel, null, null, null, null);
         mController.updateState(mPreference);
         assertTrue(mSwitch.isEnabled());
diff --git a/tests/robotests/src/com/android/settings/notification/app/NotificationPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/notification/app/NotificationPreferenceControllerTest.java
index 170a5e0..259f40e 100644
--- a/tests/robotests/src/com/android/settings/notification/app/NotificationPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/notification/app/NotificationPreferenceControllerTest.java
@@ -236,7 +236,7 @@
         NotificationBackend.AppRow appRow = new NotificationBackend.AppRow();
         appRow.systemApp = false;
         NotificationChannel channel = mock(NotificationChannel.class);
-        when(channel.isBlockableSystem()).thenReturn(false);
+        when(channel.isBlockable()).thenReturn(false);
 
         mController.onResume(appRow, channel, null, null, null, null);
         assertTrue(mController.isChannelBlockable());
@@ -247,7 +247,7 @@
         NotificationBackend.AppRow appRow = new NotificationBackend.AppRow();
         appRow.systemApp = true;
         NotificationChannel channel = mock(NotificationChannel.class);
-        when(channel.isBlockableSystem()).thenReturn(false);
+        when(channel.isBlockable()).thenReturn(false);
         when(channel.getImportance()).thenReturn(IMPORTANCE_HIGH);
 
         mController.onResume(appRow, channel, null, null, null, null);
@@ -259,7 +259,7 @@
         NotificationBackend.AppRow appRow = new NotificationBackend.AppRow();
         appRow.systemApp = true;
         NotificationChannel channel = mock(NotificationChannel.class);
-        when(channel.isBlockableSystem()).thenReturn(true);
+        when(channel.isBlockable()).thenReturn(true);
 
         mController.onResume(appRow, channel, null, null, null, null);
         assertTrue(mController.isChannelBlockable());
@@ -270,7 +270,7 @@
         NotificationBackend.AppRow appRow = new NotificationBackend.AppRow();
         appRow.systemApp = true;
         NotificationChannel channel = mock(NotificationChannel.class);
-        when(channel.isBlockableSystem()).thenReturn(false);
+        when(channel.isBlockable()).thenReturn(false);
         when(channel.getImportance()).thenReturn(IMPORTANCE_NONE);
 
         mController.onResume(appRow, channel, null, null, null, null);
diff --git a/tests/robotests/src/com/android/settings/wifi/UseOpenWifiPreferenceControllerTest.java b/tests/robotests/src/com/android/settings/wifi/UseOpenWifiPreferenceControllerTest.java
index beaa1a6..ca636a4 100644
--- a/tests/robotests/src/com/android/settings/wifi/UseOpenWifiPreferenceControllerTest.java
+++ b/tests/robotests/src/com/android/settings/wifi/UseOpenWifiPreferenceControllerTest.java
@@ -39,7 +39,6 @@
 import android.provider.Settings;
 
 import androidx.fragment.app.Fragment;
-import androidx.preference.Preference;
 import androidx.preference.SwitchPreference;
 
 import com.android.settings.R;
@@ -144,6 +143,19 @@
     }
 
     @Test
+    public void isAvailable_disableUseOpenWifiComponentBetweenCalls_returnsTrueThenReturnsFalse() {
+        setupScorers(Lists.newArrayList(sAppData));
+        createController();
+
+        assertThat(mController.isAvailable()).isTrue();
+
+        // Update NetworkScorerAppData so that it no longer has openWifiActivity.
+        setupScorers(Lists.newArrayList(sAppDataNoActivity));
+
+        assertThat(mController.isAvailable()).isFalse();
+    }
+
+    @Test
     public void setChecked_withTrue_enableShouldStartEnableActivity() {
         setupScorers(Lists.newArrayList(sAppData, sAppDataNoActivity));
         createController();