diff --git a/gradle.properties b/gradle.properties
index 7a51375..7f4c609 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -10,4 +10,4 @@
 PROTOBUF_DEPENDENCY=com.google.protobuf.nano:protobuf-javanano:3.0.0-alpha-7
 
 BUILD_TOOLS_VERSION=28.0.3
-COMPILE_SDK=android-R
+COMPILE_SDK=android-S
diff --git a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
index be57dec..c3f5c00 100644
--- a/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
+++ b/quickstep/src/com/android/launcher3/model/QuickstepModelDelegate.java
@@ -15,11 +15,15 @@
  */
 package com.android.launcher3.model;
 
+import static android.text.format.DateUtils.DAY_IN_MILLIS;
+import static android.text.format.DateUtils.formatElapsedTime;
+
 import static com.android.launcher3.InvariantDeviceProfile.CHANGE_FLAG_GRID;
 import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_HOTSEAT_PREDICTION;
 import static com.android.launcher3.LauncherSettings.Favorites.CONTAINER_PREDICTION;
 import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_APPLICATION;
 import static com.android.launcher3.LauncherSettings.Favorites.ITEM_TYPE_DEEP_SHORTCUT;
+import static com.android.launcher3.Utilities.getDevicePrefs;
 import static com.android.launcher3.hybridhotseat.HotseatPredictionModel.convertDataModelToAppTargetBundle;
 
 import android.app.prediction.AppPredictionContext;
@@ -29,10 +33,12 @@
 import android.app.prediction.AppTargetEvent;
 import android.content.Context;
 import android.content.Intent;
+import android.content.SharedPreferences;
 import android.content.pm.LauncherActivityInfo;
 import android.content.pm.LauncherApps;
 import android.content.pm.ShortcutInfo;
 import android.os.UserHandle;
+import android.util.Log;
 
 import androidx.annotation.Nullable;
 import androidx.annotation.WorkerThread;
@@ -40,12 +46,16 @@
 import com.android.launcher3.InvariantDeviceProfile;
 import com.android.launcher3.InvariantDeviceProfile.OnIDPChangeListener;
 import com.android.launcher3.LauncherAppState;
+import com.android.launcher3.logging.InstanceId;
+import com.android.launcher3.logging.InstanceIdSequence;
 import com.android.launcher3.model.BgDataModel.FixedContainerItems;
 import com.android.launcher3.model.data.AppInfo;
+import com.android.launcher3.model.data.FolderInfo;
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.shortcuts.ShortcutKey;
 import com.android.launcher3.util.Executors;
+import com.android.launcher3.util.IntSparseArrayMap;
 import com.android.launcher3.util.PersistedItemArray;
 import com.android.quickstep.logging.StatsLogCompatManager;
 
@@ -61,6 +71,10 @@
 public class QuickstepModelDelegate extends ModelDelegate implements OnIDPChangeListener {
 
     public static final String LAST_PREDICTION_ENABLED_STATE = "last_prediction_enabled_state";
+    private static final String LAST_SNAPSHOT_TIME_MILLIS = "LAST_SNAPSHOT_TIME_MILLIS";
+
+    private static final boolean IS_DEBUG = false;
+    private static final String TAG = "QuickstepModelDelegate";
 
     private final PredictorState mAllAppsState =
             new PredictorState(CONTAINER_PREDICTION, "all_apps_predictions");
@@ -81,6 +95,7 @@
     }
 
     @Override
+    @WorkerThread
     public void loadItems(UserManagerState ums, Map<ShortcutKey, ShortcutInfo> pinnedShortcuts) {
         // TODO: Implement caching and preloading
         super.loadItems(ums, pinnedShortcuts);
@@ -106,6 +121,38 @@
     }
 
     @Override
+    @WorkerThread
+    public void modelLoadComplete() {
+        super.modelLoadComplete();
+
+        // Log snapshot of the model
+        SharedPreferences prefs = getDevicePrefs(mApp.getContext());
+        long lastSnapshotTimeMillis = prefs.getLong(LAST_SNAPSHOT_TIME_MILLIS, 0);
+        // Log snapshot only if previous snapshot was older than a day
+        long now = System.currentTimeMillis();
+        if (now - lastSnapshotTimeMillis < DAY_IN_MILLIS) {
+            if (IS_DEBUG) {
+                String elapsedTime = formatElapsedTime((now - lastSnapshotTimeMillis) / 1000);
+                Log.d(TAG, String.format(
+                        "Skipped snapshot logging since previous snapshot was %s old.",
+                        elapsedTime));
+            }
+        } else {
+            IntSparseArrayMap<ItemInfo> itemsIdMap;
+            synchronized (mDataModel) {
+                itemsIdMap = mDataModel.itemsIdMap.clone();
+            }
+            InstanceId instanceId = new InstanceIdSequence().newInstanceId();
+            for (ItemInfo info : itemsIdMap) {
+                FolderInfo parent = info.container > 0
+                        ? (FolderInfo) itemsIdMap.get(info.container) : null;
+                StatsLogCompatManager.writeSnapshot(info.buildProto(parent), instanceId);
+            }
+            prefs.edit().putLong(LAST_SNAPSHOT_TIME_MILLIS, now).apply();
+        }
+    }
+
+    @Override
     public void validateData() {
         super.validateData();
         if (mAllAppsState.predictor != null) {
diff --git a/quickstep/src/com/android/quickstep/QuickstepProcessInitializer.java b/quickstep/src/com/android/quickstep/QuickstepProcessInitializer.java
index 32268a4..80308a5 100644
--- a/quickstep/src/com/android/quickstep/QuickstepProcessInitializer.java
+++ b/quickstep/src/com/android/quickstep/QuickstepProcessInitializer.java
@@ -15,19 +15,25 @@
  */
 package com.android.quickstep;
 
+import android.annotation.TargetApi;
 import android.content.Context;
 import android.content.pm.PackageManager;
+import android.os.Build;
 import android.os.UserManager;
 import android.util.Log;
 
 import com.android.launcher3.BuildConfig;
 import com.android.launcher3.MainProcessInitializer;
+import com.android.launcher3.util.Executors;
+import com.android.quickstep.logging.SettingsChangeLogger;
 import com.android.systemui.shared.system.ThreadedRendererCompat;
 
 @SuppressWarnings("unused")
+@TargetApi(Build.VERSION_CODES.R)
 public class QuickstepProcessInitializer extends MainProcessInitializer {
 
     private static final String TAG = "QuickstepProcessInitializer";
+    private static final int SETUP_DELAY_MILLIS = 5000;
 
     public QuickstepProcessInitializer(Context context) { }
 
@@ -51,5 +57,9 @@
         // Elevate GPU priority for Quickstep and Remote animations.
         ThreadedRendererCompat.setContextPriority(
                 ThreadedRendererCompat.EGL_CONTEXT_PRIORITY_HIGH_IMG);
+
+        // Initialize settings logger after a default timeout
+        Executors.MAIN_EXECUTOR.getHandler()
+                .postDelayed(() -> new SettingsChangeLogger(context), SETUP_DELAY_MILLIS);
     }
 }
diff --git a/quickstep/src/com/android/quickstep/logging/SettingsChangeLogger.java b/quickstep/src/com/android/quickstep/logging/SettingsChangeLogger.java
new file mode 100644
index 0000000..0bb0bbc
--- /dev/null
+++ b/quickstep/src/com/android/quickstep/logging/SettingsChangeLogger.java
@@ -0,0 +1,155 @@
+/*
+ * 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.quickstep.logging;
+
+import static com.android.launcher3.Utilities.getDevicePrefs;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_HOME_SCREEN_SUGGESTIONS_DISABLED;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_HOME_SCREEN_SUGGESTIONS_ENABLED;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_NOTIFICATION_DOT_DISABLED;
+import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_NOTIFICATION_DOT_ENABLED;
+import static com.android.launcher3.model.QuickstepModelDelegate.LAST_PREDICTION_ENABLED_STATE;
+import static com.android.launcher3.util.SecureSettingsObserver.newNotificationSettingsObserver;
+
+import android.content.Context;
+import android.content.SharedPreferences;
+import android.content.SharedPreferences.OnSharedPreferenceChangeListener;
+import android.content.res.TypedArray;
+import android.util.ArrayMap;
+import android.util.Log;
+import android.util.Xml;
+
+import com.android.launcher3.AutoInstallsLayout;
+import com.android.launcher3.R;
+import com.android.launcher3.Utilities;
+import com.android.launcher3.logging.InstanceIdSequence;
+import com.android.launcher3.logging.StatsLogManager;
+import com.android.launcher3.logging.StatsLogManager.StatsLogger;
+import com.android.launcher3.util.SecureSettingsObserver;
+import com.android.quickstep.SysUINavigationMode;
+import com.android.quickstep.SysUINavigationMode.Mode;
+import com.android.quickstep.SysUINavigationMode.NavigationModeChangeListener;
+
+import org.xmlpull.v1.XmlPullParser;
+import org.xmlpull.v1.XmlPullParserException;
+
+import java.io.IOException;
+
+/**
+ * Utility class to log launcher settings changes
+ */
+public class SettingsChangeLogger implements
+        NavigationModeChangeListener, OnSharedPreferenceChangeListener {
+
+    private static final String TAG = "SettingsChangeLogger";
+    private static final String ROOT_TAG = "androidx.preference.PreferenceScreen";
+    private static final String BOOLEAN_PREF = "SwitchPreference";
+
+    private final Context mContext;
+    private final ArrayMap<String, LoggablePref> mLoggablePrefs;
+
+    private Mode mNavMode;
+    private boolean mNotificationDotsEnabled;
+
+    public SettingsChangeLogger(Context context) {
+        mContext = context;
+        mLoggablePrefs = loadPrefKeys(context);
+        mNavMode = SysUINavigationMode.INSTANCE.get(context).addModeChangeListener(this);
+
+        Utilities.getPrefs(context).registerOnSharedPreferenceChangeListener(this);
+        getDevicePrefs(context).registerOnSharedPreferenceChangeListener(this);
+
+        SecureSettingsObserver dotsObserver =
+                newNotificationSettingsObserver(context, this::onNotificationDotsChanged);
+        mNotificationDotsEnabled = dotsObserver.getValue();
+        dispatchUserEvent();
+
+    }
+
+    private static ArrayMap<String, LoggablePref> loadPrefKeys(Context context) {
+        XmlPullParser parser = context.getResources().getXml(R.xml.launcher_preferences);
+        ArrayMap<String, LoggablePref> result = new ArrayMap<>();
+
+        try {
+            AutoInstallsLayout.beginDocument(parser, ROOT_TAG);
+            final int depth = parser.getDepth();
+            int type;
+            while (((type = parser.next()) != XmlPullParser.END_TAG
+                    || parser.getDepth() > depth) && type != XmlPullParser.END_DOCUMENT) {
+                if (type != XmlPullParser.START_TAG) {
+                    continue;
+                }
+                if (BOOLEAN_PREF.equals(parser.getName())) {
+                    TypedArray a = context.obtainStyledAttributes(
+                            Xml.asAttributeSet(parser), R.styleable.LoggablePref);
+                    String key = a.getString(R.styleable.LoggablePref_android_key);
+                    LoggablePref pref = new LoggablePref();
+                    pref.defaultValue =
+                            a.getBoolean(R.styleable.LoggablePref_android_defaultValue, true);
+                    pref.eventIdOn = a.getInt(R.styleable.LoggablePref_logIdOn, 0);
+                    pref.eventIdOff = a.getInt(R.styleable.LoggablePref_logIdOff, 0);
+                    if (pref.eventIdOff > 0 && pref.eventIdOn > 0) {
+                        result.put(key, pref);
+                    }
+                }
+            }
+        } catch (XmlPullParserException | IOException e) {
+            Log.e(TAG, "Error parsing preference xml", e);
+        }
+        return result;
+    }
+
+    private void onNotificationDotsChanged(boolean isDotsEnabled) {
+        mNotificationDotsEnabled = isDotsEnabled;
+        dispatchUserEvent();
+    }
+
+    @Override
+    public void onNavigationModeChanged(Mode newMode) {
+        mNavMode = newMode;
+        dispatchUserEvent();
+    }
+
+    @Override
+    public void onSharedPreferenceChanged(SharedPreferences prefs, String key) {
+        if (LAST_PREDICTION_ENABLED_STATE.equals(key) || mLoggablePrefs.containsKey(key)) {
+            dispatchUserEvent();
+        }
+    }
+
+    private void dispatchUserEvent() {
+        StatsLogger logger = StatsLogManager.newInstance(mContext).logger()
+                .withInstanceId(new InstanceIdSequence().newInstanceId());
+
+        logger.log(mNotificationDotsEnabled
+                ? LAUNCHER_NOTIFICATION_DOT_ENABLED
+                : LAUNCHER_NOTIFICATION_DOT_DISABLED);
+        logger.log(mNavMode.launcherEvent);
+        logger.log(getDevicePrefs(mContext).getBoolean(LAST_PREDICTION_ENABLED_STATE, true)
+                ? LAUNCHER_HOME_SCREEN_SUGGESTIONS_ENABLED
+                : LAUNCHER_HOME_SCREEN_SUGGESTIONS_DISABLED);
+
+        SharedPreferences prefs = Utilities.getPrefs(mContext);
+        mLoggablePrefs.forEach((key, lp) -> logger.log(() ->
+                prefs.getBoolean(key, lp.defaultValue) ? lp.eventIdOn : lp.eventIdOff));
+    }
+
+    private static class LoggablePref {
+        public boolean defaultValue;
+        public int eventIdOn;
+        public int eventIdOff;
+    }
+}
diff --git a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
index 059d158..d949126 100644
--- a/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
+++ b/quickstep/src/com/android/quickstep/logging/StatsLogCompatManager.java
@@ -16,10 +16,6 @@
 
 package com.android.quickstep.logging;
 
-import static android.text.format.DateUtils.DAY_IN_MILLIS;
-import static android.text.format.DateUtils.formatElapsedTime;
-
-import static com.android.launcher3.Utilities.getDevicePrefs;
 import static com.android.launcher3.logger.LauncherAtom.ContainerInfo.ContainerCase.FOLDER;
 import static com.android.launcher3.logger.LauncherAtom.ContainerInfo.ContainerCase.SEARCH_RESULT_CONTAINER;
 import static com.android.launcher3.logging.StatsLogManager.LauncherEvent.LAUNCHER_WORKSPACE_SNAPSHOT;
@@ -28,8 +24,6 @@
 import static com.android.systemui.shared.system.SysUiStatsLog.LAUNCHER_UICHANGED__DST_STATE__HOME;
 import static com.android.systemui.shared.system.SysUiStatsLog.LAUNCHER_UICHANGED__DST_STATE__OVERVIEW;
 
-import static java.lang.System.currentTimeMillis;
-
 import android.content.Context;
 import android.util.Log;
 
@@ -44,22 +38,16 @@
 import com.android.launcher3.logger.LauncherAtom.FromState;
 import com.android.launcher3.logger.LauncherAtom.ToState;
 import com.android.launcher3.logging.InstanceId;
-import com.android.launcher3.logging.InstanceIdSequence;
 import com.android.launcher3.logging.StatsLogManager;
 import com.android.launcher3.model.AllAppsList;
 import com.android.launcher3.model.BaseModelUpdateTask;
 import com.android.launcher3.model.BgDataModel;
 import com.android.launcher3.model.data.FolderInfo;
 import com.android.launcher3.model.data.ItemInfo;
-import com.android.launcher3.model.data.LauncherAppWidgetInfo;
-import com.android.launcher3.model.data.WorkspaceItemInfo;
 import com.android.launcher3.util.Executors;
-import com.android.launcher3.util.IntSparseArrayMap;
 import com.android.launcher3.util.LogConfig;
 import com.android.systemui.shared.system.SysUiStatsLog;
 
-import java.util.ArrayList;
-import java.util.List;
 import java.util.Optional;
 import java.util.OptionalInt;
 import java.util.concurrent.CopyOnWriteArrayList;
@@ -78,7 +66,6 @@
 
     private static final String TAG = "StatsLog";
     private static final boolean IS_VERBOSE = Utilities.isPropertyEnabled(LogConfig.STATSLOG);
-    private static final String LAST_SNAPSHOT_TIME_MILLIS = "LAST_SNAPSHOT_TIME_MILLIS";
     private static final InstanceId DEFAULT_INSTANCE_ID = InstanceId.fakeInstanceId(0);
     // LauncherAtom.ItemInfo.getDefaultInstance() should be used but until launcher proto migrates
     // from nano to lite, bake constant to prevent robo test failure.
@@ -101,71 +88,10 @@
     }
 
     /**
-     * Logs impression of the current workspace with additional launcher events.
+     * Synchronously writes an itemInfo to stats log
      */
-    @Override
-    public void logSnapshot(List<EventEnum> extraEvents) {
-        LauncherAppState.getInstance(mContext).getModel().enqueueModelUpdateTask(
-                new SnapshotWorker(extraEvents));
-    }
-
-    private class SnapshotWorker extends BaseModelUpdateTask {
-        private final InstanceId mInstanceId;
-        private final List<EventEnum> mExtraEvents;
-
-        SnapshotWorker(List<EventEnum> extraEvents) {
-            mInstanceId = new InstanceIdSequence(1 << 20 /*InstanceId.INSTANCE_ID_MAX*/)
-                    .newInstanceId();
-            this.mExtraEvents = extraEvents;
-        }
-
-        @Override
-        public void execute(LauncherAppState app, BgDataModel dataModel, AllAppsList apps) {
-            long lastSnapshotTimeMillis = getDevicePrefs(mContext)
-                    .getLong(LAST_SNAPSHOT_TIME_MILLIS, 0);
-            // Log snapshot only if previous snapshot was older than a day
-            if (currentTimeMillis() - lastSnapshotTimeMillis < DAY_IN_MILLIS) {
-                if (IS_VERBOSE) {
-                    String elapsedTime = formatElapsedTime(
-                            (currentTimeMillis() - lastSnapshotTimeMillis) / 1000);
-                    Log.d(TAG, String.format(
-                            "Skipped snapshot logging since previous snapshot was %s old.",
-                            elapsedTime));
-                }
-                return;
-            }
-
-            IntSparseArrayMap<FolderInfo> folders = dataModel.folders.clone();
-            ArrayList<ItemInfo> workspaceItems = (ArrayList) dataModel.workspaceItems.clone();
-            ArrayList<LauncherAppWidgetInfo> appWidgets = (ArrayList) dataModel.appWidgets.clone();
-            for (ItemInfo info : workspaceItems) {
-                LauncherAtom.ItemInfo atomInfo = info.buildProto(null);
-                writeSnapshot(atomInfo, mInstanceId);
-            }
-            for (FolderInfo fInfo : folders) {
-                try {
-                    ArrayList<WorkspaceItemInfo> folderContents =
-                            (ArrayList) Executors.MAIN_EXECUTOR.submit(fInfo.contents::clone).get();
-                    for (ItemInfo info : folderContents) {
-                        LauncherAtom.ItemInfo atomInfo = info.buildProto(fInfo);
-                        writeSnapshot(atomInfo, mInstanceId);
-                    }
-                } catch (Exception e) {
-                }
-            }
-            for (ItemInfo info : appWidgets) {
-                LauncherAtom.ItemInfo atomInfo = info.buildProto(null);
-                writeSnapshot(atomInfo, mInstanceId);
-            }
-            mExtraEvents
-                    .forEach(eventName -> logger().withInstanceId(mInstanceId).log(eventName));
-
-            getDevicePrefs(mContext).edit()
-                    .putLong(LAST_SNAPSHOT_TIME_MILLIS, currentTimeMillis()).apply();
-        }
-    }
-
-    private void writeSnapshot(LauncherAtom.ItemInfo info, InstanceId instanceId) {
+    @WorkerThread
+    public static void writeSnapshot(LauncherAtom.ItemInfo info, InstanceId instanceId) {
         if (IS_VERBOSE) {
             Log.d(TAG, String.format("\nwriteSnapshot(%d):\n%s", instanceId.getId(), info));
         }
diff --git a/quickstep/src/com/android/quickstep/util/MotionPauseDetector.java b/quickstep/src/com/android/quickstep/util/MotionPauseDetector.java
index d0f6879..da5f59e 100644
--- a/quickstep/src/com/android/quickstep/util/MotionPauseDetector.java
+++ b/quickstep/src/com/android/quickstep/util/MotionPauseDetector.java
@@ -193,7 +193,10 @@
                 if (isFirstDetectedPause) {
                     mOnMotionPauseListener.onMotionPauseDetected();
                 }
-                mOnMotionPauseListener.onMotionPauseChanged(mIsPaused);
+                // Null check again as onMotionPauseDetected() maybe have called clear().
+                if (mOnMotionPauseListener != null) {
+                    mOnMotionPauseListener.onMotionPauseChanged(mIsPaused);
+                }
             }
         }
     }
diff --git a/res/values/attrs.xml b/res/values/attrs.xml
index 6b0f300..c3ad1eb 100644
--- a/res/values/attrs.xml
+++ b/res/values/attrs.xml
@@ -174,6 +174,14 @@
         <attr name="canThumbDetach" format="boolean" />
     </declare-styleable>
 
+    <declare-styleable name="LoggablePref">
+        <attr name="android:key" />
+        <attr name="android:defaultValue" />
+        <!-- Ground truth of this Pref integer can be found in StatsLogManager -->
+        <attr name="logIdOn" format="integer" />
+        <attr name="logIdOff" format="integer" />
+    </declare-styleable>
+
     <declare-styleable name="PreviewFragment">
         <attr name="android:name" />
         <attr name="android:id" />
diff --git a/res/xml/launcher_preferences.xml b/res/xml/launcher_preferences.xml
index 7e72208..e4bea50 100644
--- a/res/xml/launcher_preferences.xml
+++ b/res/xml/launcher_preferences.xml
@@ -15,7 +15,8 @@
 -->
 
 <androidx.preference.PreferenceScreen
-    xmlns:android="http://schemas.android.com/apk/res/android">
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:launcher="http://schemas.android.com/apk/res-auto">
 
     <com.android.launcher3.settings.NotificationDotsPreference
         android:key="pref_icon_badging"
@@ -30,19 +31,31 @@
         </intent>
     </com.android.launcher3.settings.NotificationDotsPreference>
 
+    <!--
+      LAUNCHER_ADD_NEW_APPS_TO_HOME_SCREEN_ENABLED(613)
+      LAUNCHER_ADD_NEW_APPS_TO_HOME_SCREEN_DISABLED(614)
+    -->
     <SwitchPreference
         android:key="pref_add_icon_to_home"
         android:title="@string/auto_add_shortcuts_label"
         android:summary="@string/auto_add_shortcuts_description"
         android:defaultValue="true"
-        android:persistent="true" />
+        android:persistent="true"
+        launcher:logIdOn="613"
+        launcher:logIdOff="614" />
 
+    <!--
+      LAUNCHER_HOME_SCREEN_ROTATION_ENABLED(615)
+      LAUNCHER_HOME_SCREEN_ROTATION_DISABLED(616)
+    -->
     <SwitchPreference
         android:key="pref_allowRotation"
         android:title="@string/allow_rotation_title"
         android:summary="@string/allow_rotation_desc"
         android:defaultValue="@bool/allow_rotation"
-        android:persistent="true" />
+        android:persistent="true"
+        launcher:logIdOn="615"
+        launcher:logIdOff="616" />
 
     <androidx.preference.PreferenceScreen
         android:key="pref_developer_options"
diff --git a/src/com/android/launcher3/DropTarget.java b/src/com/android/launcher3/DropTarget.java
index fd4c30c..70d8476 100644
--- a/src/com/android/launcher3/DropTarget.java
+++ b/src/com/android/launcher3/DropTarget.java
@@ -79,9 +79,7 @@
         public DraggableView originalView = null;
 
         /** Used for matching DROP event with its corresponding DRAG event on the server side. */
-        public final InstanceId logInstanceId =
-                new InstanceIdSequence(1 << 20 /*InstanceId.INSTANCE_ID_MAX*/)
-                    .newInstanceId();
+        public final InstanceId logInstanceId = new InstanceIdSequence().newInstanceId();
 
         public DragObject(Context context) {
             if (FeatureFlags.FOLDER_NAME_SUGGEST.get()) {
diff --git a/src/com/android/launcher3/logging/StatsLogManager.java b/src/com/android/launcher3/logging/StatsLogManager.java
index 2c5bf32..7e90769 100644
--- a/src/com/android/launcher3/logging/StatsLogManager.java
+++ b/src/com/android/launcher3/logging/StatsLogManager.java
@@ -29,8 +29,6 @@
 import com.android.launcher3.model.data.ItemInfo;
 import com.android.launcher3.util.ResourceBasedOverride;
 
-import java.util.List;
-
 /**
  * Handles the user event logging in R+.
  *
@@ -463,10 +461,4 @@
                 context.getApplicationContext(), R.string.stats_log_manager_class);
         return mgr;
     }
-
-    /**
-     * Logs impression of the current workspace with additional launcher events.
-     */
-    public void logSnapshot(List<EventEnum> additionalEvents) {
-    }
 }
diff --git a/src/com/android/launcher3/model/LoaderTask.java b/src/com/android/launcher3/model/LoaderTask.java
index d47fafd..b108788 100644
--- a/src/com/android/launcher3/model/LoaderTask.java
+++ b/src/com/android/launcher3/model/LoaderTask.java
@@ -289,6 +289,7 @@
             updateHandler.finish();
             logger.addSplit("finish icon update");
 
+            mModelDelegate.modelLoadComplete();
             transaction.commit();
         } catch (CancellationException e) {
             // Loader stopped, ignore
diff --git a/src/com/android/launcher3/model/ModelDelegate.java b/src/com/android/launcher3/model/ModelDelegate.java
index 3ed8809..92bea5b 100644
--- a/src/com/android/launcher3/model/ModelDelegate.java
+++ b/src/com/android/launcher3/model/ModelDelegate.java
@@ -78,6 +78,12 @@
     public void workspaceLoadComplete() { }
 
     /**
+     * Called at the end of model load task
+     */
+    @WorkerThread
+    public void modelLoadComplete() { }
+
+    /**
      * Called when the delegate is no loner needed
      */
     @WorkerThread