diff --git a/Android.mk b/Android.mk
index 6e8365f..110117b 100644
--- a/Android.mk
+++ b/Android.mk
@@ -36,8 +36,7 @@
 LOCAL_PROTOC_OPTIMIZE_TYPE := nano
 LOCAL_PROTOC_FLAGS := --proto_path=$(LOCAL_PATH)/protos/
 
-# STOPSHIP(kennyguy): change to 21 once the L SDK is baked.
-LOCAL_SDK_VERSION := current
+LOCAL_SDK_VERSION := 21
 
 LOCAL_PACKAGE_NAME := Launcher3
 #LOCAL_CERTIFICATE := shared
diff --git a/WallpaperPicker/res/drawable-xxhdpi/ic_actionbar_accept.png b/WallpaperPicker/res/drawable-xxhdpi/ic_actionbar_accept.png
new file mode 100755
index 0000000..d9ad51c
--- /dev/null
+++ b/WallpaperPicker/res/drawable-xxhdpi/ic_actionbar_accept.png
Binary files differ
diff --git a/res/values-am/strings.xml b/res/values-am/strings.xml
index 25931db..d77744c 100644
--- a/res/values-am/strings.xml
+++ b/res/values-am/strings.xml
@@ -96,7 +96,7 @@
     <string name="migration_cling_copy_apps" msgid="946331230090919440">"አዶዎችን ይቅዱ"</string>
     <string name="migration_cling_use_default" msgid="2626475813981258626">"እንደ አዲስ ይጀምሩ"</string>
     <string name="workspace_cling_title" msgid="5626202359865825661">"ቦታዎን ያደራጁ"</string>
-    <string name="workspace_cling_move_item" msgid="528201129978005352">"ልጣፍ ፣ ምግብሮችን እና ቅንብሮችን ለማቀናበር ጀርባውን ይንኩ እና ይያዙት።"</string>
+    <string name="workspace_cling_move_item" msgid="528201129978005352">"የግድግዳ ወረቀት፣ ምግብሮችን እና ቅንብሮችን ለማቀናበር ጀርባውን ይንኩ እና ይያዙት።"</string>
     <string name="workspace_cling_longpress_title" msgid="9173998993909018310">"የግድግዳ ወረቀቶች፣ ንዑስ ፕሮግራሞች እና ቅንብሮች"</string>
     <string name="workspace_cling_longpress_description" msgid="4119994475505235248">"ለማበጀት ጀርባውን ነክተው ይያዙት"</string>
     <string name="workspace_cling_longpress_dismiss" msgid="368660286867640874">"ገባኝ"</string>
diff --git a/res/values-hi/strings.xml b/res/values-hi/strings.xml
index 0ae90d4..9058b78 100644
--- a/res/values-hi/strings.xml
+++ b/res/values-hi/strings.xml
@@ -27,7 +27,7 @@
     <string name="safemode_shortcut_error" msgid="9160126848219158407">"डाउनलोड किए गए ऐप्स सुरक्षित मोड में अक्षम है"</string>
     <string name="widgets_tab_label" msgid="2921133187116603919">"विजेट"</string>
     <string name="widget_adder" msgid="3201040140710381657">"विजेट"</string>
-    <string name="toggle_weight_watcher" msgid="5645299835184636119">"मेमोरी दिखाएं"</string>
+    <string name="toggle_weight_watcher" msgid="5645299835184636119">"स्मृति दिखाएं"</string>
     <string name="long_press_widget_to_add" msgid="7699152356777458215">"विजेट को चुनने के लिए स्‍पर्श करके रखें."</string>
     <string name="market" msgid="2619650989819296998">"खरीदारी करें"</string>
     <string name="widget_dims_format" msgid="2370757736025621599">"%1$d × %2$d"</string>
@@ -36,7 +36,7 @@
     <string name="rename_folder_label" msgid="3727762225964550653">"फ़ोल्‍डर का नाम"</string>
     <string name="rename_folder_title" msgid="3771389277707820891">"फ़ोल्‍डर का नाम बदलें"</string>
     <string name="rename_action" msgid="5559600076028658757">"ठीक"</string>
-    <string name="cancel_action" msgid="7009134900002915310">"रहने दें"</string>
+    <string name="cancel_action" msgid="7009134900002915310">"रद्द करें"</string>
     <string name="menu_item_add_item" msgid="1264911265836810421">"होम स्‍क्रीन में जोड़ें"</string>
     <string name="group_applications" msgid="3797214114206693605">"ऐप्लिकेशन"</string>
     <string name="group_shortcuts" msgid="6012256992764410535">"शॉर्टकट"</string>
diff --git a/res/values-uk/strings.xml b/res/values-uk/strings.xml
index e5b5cd8..52f3761 100644
--- a/res/values-uk/strings.xml
+++ b/res/values-uk/strings.xml
@@ -23,7 +23,7 @@
     <string name="home" msgid="7658288663002113681">"Головний екран"</string>
     <string name="uid_name" msgid="7820867637514617527">"Базові програми Android"</string>
     <string name="folder_name" msgid="7371454440695724752"></string>
-    <string name="activity_not_found" msgid="8071924732094499514">"Додаток видалено."</string>
+    <string name="activity_not_found" msgid="8071924732094499514">"Програму не встановлено."</string>
     <string name="safemode_shortcut_error" msgid="9160126848219158407">"Завантажений додаток вимкнено в безпечному режимі"</string>
     <string name="widgets_tab_label" msgid="2921133187116603919">"Віджети"</string>
     <string name="widget_adder" msgid="3201040140710381657">"Віджети"</string>
@@ -38,7 +38,7 @@
     <string name="rename_action" msgid="5559600076028658757">"OК"</string>
     <string name="cancel_action" msgid="7009134900002915310">"Скасувати"</string>
     <string name="menu_item_add_item" msgid="1264911265836810421">"Додати на головний екран"</string>
-    <string name="group_applications" msgid="3797214114206693605">"Додатки"</string>
+    <string name="group_applications" msgid="3797214114206693605">"Програми"</string>
     <string name="group_shortcuts" msgid="6012256992764410535">"Ярлики"</string>
     <string name="group_widgets" msgid="1569030723286851002">"Віджети"</string>
     <string name="completely_out_of_space" msgid="6106288382070760318">"На головних екранах більше немає місця."</string>
@@ -50,7 +50,7 @@
     <string name="shortcut_duplicate" msgid="9167217446062498127">"Ярлик \"<xliff:g id="NAME">%s</xliff:g>\" уже існує."</string>
     <string name="title_select_shortcut" msgid="6680642571148153868">"Вибрати ярлик"</string>
     <string name="title_select_application" msgid="3280812711670683644">"Вибрати програму"</string>
-    <string name="all_apps_button_label" msgid="9110807029020582876">"Додатки"</string>
+    <string name="all_apps_button_label" msgid="9110807029020582876">"Програми"</string>
     <string name="all_apps_home_button_label" msgid="252062713717058851">"Головний екран"</string>
     <string name="delete_zone_label_workspace" msgid="4009607676751398685">"Вилучити"</string>
     <string name="delete_zone_label_all_apps" msgid="8083826390278958980">"Видалити"</string>
@@ -59,7 +59,7 @@
     <string name="info_target_label" msgid="8053346143994679532">"Про програму"</string>
     <string name="accessibility_search_button" msgid="1628520399424565142">"Пошук"</string>
     <string name="accessibility_voice_search_button" msgid="4637324840434406584">"Голосовий пошук"</string>
-    <string name="accessibility_all_apps_button" msgid="2603132375383800483">"Додатки"</string>
+    <string name="accessibility_all_apps_button" msgid="2603132375383800483">"Програми"</string>
     <string name="accessibility_delete_button" msgid="6466114477993744621">"Вилучити"</string>
     <string name="delete_zone_label_all_apps_system_app" msgid="449755632749610895">"Видалити оновлення"</string>
     <string name="cab_menu_delete_app" msgid="7435191475867183689">"Видалити програму"</string>
diff --git a/res/values-zh-rHK/strings.xml b/res/values-zh-rHK/strings.xml
index 457d5be..e1c2063 100644
--- a/res/values-zh-rHK/strings.xml
+++ b/res/values-zh-rHK/strings.xml
@@ -69,9 +69,9 @@
     <string name="cab_folder_selection_text" msgid="7999992513806132118">"已選取 1 個資料夾"</string>
     <string name="cab_shortcut_selection_text" msgid="2103811025667946450">"已選取 1 個捷徑"</string>
     <string name="permlab_install_shortcut" msgid="5632423390354674437">"安裝捷徑"</string>
-    <string name="permdesc_install_shortcut" msgid="923466509822011139">"允許應用程式無需使用者許可也可新增捷徑。"</string>
+    <string name="permdesc_install_shortcut" msgid="923466509822011139">"允許應用程式無需用戶許可也可新增捷徑。"</string>
     <string name="permlab_uninstall_shortcut" msgid="864595034498083837">"解除安裝捷徑"</string>
-    <string name="permdesc_uninstall_shortcut" msgid="5134129545001836849">"允許應用程式無需使用者許可也可移除捷徑。"</string>
+    <string name="permdesc_uninstall_shortcut" msgid="5134129545001836849">"允許應用程式無需用戶許可也可移除捷徑。"</string>
     <string name="permlab_read_settings" msgid="1941457408239617576">"讀取主畫面的設定和捷徑"</string>
     <string name="permdesc_read_settings" msgid="5833423719057558387">"允許應用程式讀取主畫面中的設定和捷徑。"</string>
     <string name="permlab_write_settings" msgid="3574213698004620587">"寫入主畫面的設定和捷徑"</string>
diff --git a/src/com/android/launcher3/Launcher.java b/src/com/android/launcher3/Launcher.java
index 37a7f5c..42ec4fb 100644
--- a/src/com/android/launcher3/Launcher.java
+++ b/src/com/android/launcher3/Launcher.java
@@ -689,19 +689,20 @@
         }
     }
 
-    /**
-     * Copied from View -- the View version of the method isn't called
-     * anywhere else in our process and only exists for API level 17+,
-     * so it's ok to keep our own version with no API requirement.
-     */
     public static int generateViewId() {
-        for (;;) {
-            final int result = sNextGeneratedId.get();
-            // aapt-generated IDs have the high byte nonzero; clamp to the range under that.
-            int newValue = result + 1;
-            if (newValue > 0x00FFFFFF) newValue = 1; // Roll over to 1, not 0.
-            if (sNextGeneratedId.compareAndSet(result, newValue)) {
-                return result;
+        if (Build.VERSION.SDK_INT >= 17) {
+            return View.generateViewId();
+        } else {
+            // View.generateViewId() is not available. The following fallback logic is a copy
+            // of its implementation.
+            for (;;) {
+                final int result = sNextGeneratedId.get();
+                // aapt-generated IDs have the high byte nonzero; clamp to the range under that.
+                int newValue = result + 1;
+                if (newValue > 0x00FFFFFF) newValue = 1; // Roll over to 1, not 0.
+                if (sNextGeneratedId.compareAndSet(result, newValue)) {
+                    return result;
+                }
             }
         }
     }
@@ -1134,7 +1135,9 @@
     @Override
     public Object onRetainNonConfigurationInstance() {
         // Flag the loader to stop early before switching
-        mModel.stopLoader();
+        if (mModel.isCurrentCallbacks(this)) {
+            mModel.stopLoader();
+        }
         if (mAppsCustomizeContent != null) {
             mAppsCustomizeContent.surrender();
         }
@@ -1997,8 +2000,13 @@
 
         // Stop callbacks from LauncherModel
         LauncherAppState app = (LauncherAppState.getInstance());
-        mModel.stopLoader();
-        app.setLauncher(null);
+
+        // It's possible to receive onDestroy after a new Launcher activity has
+        // been created. In this case, don't interfere with the new Launcher.
+        if (mModel.isCurrentCallbacks(this)) {
+            mModel.stopLoader();
+            app.setLauncher(null);
+        }
 
         try {
             mAppWidgetHost.stopListening();
@@ -4602,6 +4610,7 @@
             mIntentsOnWorkspaceFromUpgradePath = mWorkspace.getUniqueComponents(true, null);
         }
         PackageInstallerCompat.getInstance(this).onFinishBind();
+        mModel.recheckRestoredItems(this);
     }
 
     private void sendLoadingCompleteBroadcastIfNecessary() {
@@ -4711,6 +4720,24 @@
     }
 
     /**
+     * Packages were restored
+     */
+    public void bindAppsRestored(final ArrayList<AppInfo> apps) {
+        Runnable r = new Runnable() {
+            public void run() {
+                bindAppsRestored(apps);
+            }
+        };
+        if (waitUntilResume(r)) {
+            return;
+        }
+
+        if (mWorkspace != null) {
+            mWorkspace.updateShortcutsAndWidgets(apps);
+        }
+    }
+
+    /**
      * Update the state of a package, typically related to install state.
      *
      * Implementation of the method from LauncherModel.Callbacks.
diff --git a/src/com/android/launcher3/LauncherBackupAgentHelper.java b/src/com/android/launcher3/LauncherBackupAgentHelper.java
index 7dd8cde..c20c693 100644
--- a/src/com/android/launcher3/LauncherBackupAgentHelper.java
+++ b/src/com/android/launcher3/LauncherBackupAgentHelper.java
@@ -17,13 +17,16 @@
 package com.android.launcher3;
 
 import android.app.backup.BackupAgentHelper;
+import android.app.backup.BackupDataInput;
 import android.app.backup.BackupManager;
-import android.app.backup.SharedPreferencesBackupHelper;
 import android.content.Context;
-import android.content.SharedPreferences;
+import android.database.Cursor;
+import android.os.ParcelFileDescriptor;
 import android.provider.Settings;
 import android.util.Log;
 
+import java.io.IOException;
+
 public class LauncherBackupAgentHelper extends BackupAgentHelper {
 
     private static final String TAG = "LauncherBackupAgentHelper";
@@ -54,7 +57,7 @@
         // modifies the file outside the normal codepaths, so it looks like another
         // process.  This forces a reload of the file, in case this process persists.
         String spKey = LauncherAppState.getSharedPreferencesKey();
-        SharedPreferences sp = getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS);
+        getSharedPreferences(spKey, Context.MODE_MULTI_PROCESS);
         super.onDestroy();
     }
 
@@ -71,4 +74,21 @@
         addHelper(LauncherBackupHelper.LAUNCHER_PREFIX,
                 new LauncherBackupHelper(this, restoreEnabled));
     }
+
+    @Override
+    public void onRestore(BackupDataInput data, int appVersionCode, ParcelFileDescriptor newState)
+            throws IOException {
+        super.onRestore(data, appVersionCode, newState);
+
+        // If no favorite was migrated, clear the data and start fresh.
+        final Cursor c = getContentResolver().query(
+                LauncherSettings.Favorites.CONTENT_URI_NO_NOTIFICATION, null, null, null, null);
+        boolean hasData = c.moveToNext();
+        c.close();
+
+        if (!hasData) {
+            if (VERBOSE) Log.v(TAG, "Nothing was restored, clearing DB");
+            LauncherAppState.getLauncherProvider().createEmptyDB();
+        }
+    }
 }
diff --git a/src/com/android/launcher3/LauncherBackupHelper.java b/src/com/android/launcher3/LauncherBackupHelper.java
index 911a41d..201f3e9 100644
--- a/src/com/android/launcher3/LauncherBackupHelper.java
+++ b/src/com/android/launcher3/LauncherBackupHelper.java
@@ -148,11 +148,12 @@
 
     private HashMap<ComponentName, AppWidgetProviderInfo> mWidgetMap;
 
-    private ArrayList<Key> mKeys;
+    private final ArrayList<Key> mKeys;
 
     public LauncherBackupHelper(Context context, boolean restoreEnabled) {
         mContext = context;
         mRestoreEnabled = restoreEnabled;
+        mKeys = new ArrayList<Key>();
     }
 
     private void dataChanged() {
@@ -218,9 +219,6 @@
     @Override
     public void restoreEntity(BackupDataInputStream data) {
         if (VERBOSE) Log.v(TAG, "restoreEntity");
-        if (mKeys == null) {
-            mKeys = new ArrayList<Key>();
-        }
         byte[] buffer = new byte[512];
             String backupKey = data.getKey();
             int dataSize = data.size();
diff --git a/src/com/android/launcher3/LauncherModel.java b/src/com/android/launcher3/LauncherModel.java
index dd94891..c64506d 100644
--- a/src/com/android/launcher3/LauncherModel.java
+++ b/src/com/android/launcher3/LauncherModel.java
@@ -198,6 +198,7 @@
                                   ArrayList<ItemInfo> addAnimated,
                                   ArrayList<AppInfo> addedApps);
         public void bindAppsUpdated(ArrayList<AppInfo> apps);
+        public void bindAppsRestored(ArrayList<AppInfo> apps);
         public void updatePackageState(ArrayList<PackageInstallInfo> installInfo);
         public void updatePackageBadge(String packageName);
         public void bindComponentsRemoved(ArrayList<String> packageNames,
@@ -1385,6 +1386,10 @@
         return isLaunching;
     }
 
+    public boolean isCurrentCallbacks(Callbacks callbacks) {
+        return (mCallbacks != null && mCallbacks.get() == callbacks);
+    }
+
     public void startLoader(boolean isLaunching, int synchronousBindPage) {
         startLoader(isLaunching, synchronousBindPage, LOADER_FLAG_NONE);
     }
@@ -2945,6 +2950,64 @@
         }
     }
 
+    /**
+     * Workaround to re-check unrestored items, in-case they were installed but the Package-ADD
+     * runnable was missed by the launcher.
+     */
+    public void recheckRestoredItems(final Context context) {
+        Runnable r = new Runnable() {
+
+            @Override
+            public void run() {
+                LauncherAppsCompat launcherApps = LauncherAppsCompat.getInstance(context);
+                HashSet<String> installedPackages = new HashSet<String>();
+                UserHandleCompat user = UserHandleCompat.myUserHandle();
+                synchronized(sBgLock) {
+                    for (ItemInfo info : sBgItemsIdMap.values()) {
+                        if (info instanceof ShortcutInfo) {
+                            ShortcutInfo si = (ShortcutInfo) info;
+                            if (si.isPromise() && si.getTargetComponent() != null
+                                    && launcherApps.isPackageEnabledForProfile(
+                                            si.getTargetComponent().getPackageName(), user)) {
+                                installedPackages.add(si.getTargetComponent().getPackageName());
+                            }
+                        } else if (info instanceof LauncherAppWidgetInfo) {
+                            LauncherAppWidgetInfo widget = (LauncherAppWidgetInfo) info;
+                            if (widget.hasRestoreFlag(LauncherAppWidgetInfo.FLAG_PROVIDER_NOT_READY)
+                                    && launcherApps.isPackageEnabledForProfile(
+                                            widget.providerName.getPackageName(), user)) {
+                                installedPackages.add(widget.providerName.getPackageName());
+                            }
+                        }
+                    }
+                }
+
+                if (!installedPackages.isEmpty()) {
+                    final ArrayList<AppInfo> restoredApps = new ArrayList<AppInfo>();
+                    for (String pkg : installedPackages) {
+                        for (LauncherActivityInfoCompat info : launcherApps.getActivityList(pkg, user)) {
+                            restoredApps.add(new AppInfo(context, info, user, mIconCache, null));
+                        }
+                    }
+
+                    final Callbacks callbacks = mCallbacks != null ? mCallbacks.get() : null;
+                    if (!restoredApps.isEmpty()) {
+                        mHandler.post(new Runnable() {
+                            public void run() {
+                                Callbacks cb = mCallbacks != null ? mCallbacks.get() : null;
+                                if (callbacks == cb && cb != null) {
+                                    callbacks.bindAppsRestored(restoredApps);
+                                }
+                            }
+                        });
+                    }
+
+                }
+            }
+        };
+        sWorker.post(r);
+    }
+
     private class PackageUpdatedTask implements Runnable {
         int mOp;
         String[] mPackages;
diff --git a/src/com/android/launcher3/LauncherProvider.java b/src/com/android/launcher3/LauncherProvider.java
index 30086ad..6cc1688 100644
--- a/src/com/android/launcher3/LauncherProvider.java
+++ b/src/com/android/launcher3/LauncherProvider.java
@@ -308,6 +308,13 @@
     }
 
     /**
+     * Clears all the data for a fresh start.
+     */
+    synchronized public void createEmptyDB() {
+        mOpenHelper.createEmptyDB(mOpenHelper.getWritableDatabase());
+    }
+
+    /**
      * Loads the default workspace based on the following priority scheme:
      *   1) From a package provided by play store
      *   2) From a partner configuration APK, already in the system image
@@ -908,7 +915,14 @@
             // This shouldn't happen -- throw our hands up in the air and start over.
             Log.w(TAG, "Database version downgrade from: " + oldVersion + " to " + newVersion +
                     ". Wiping databse.");
+            createEmptyDB(db);
+        }
 
+
+        /**
+         * Clears all the data for a fresh start.
+         */
+        public void createEmptyDB(SQLiteDatabase db) {
             db.execSQL("DROP TABLE IF EXISTS " + TABLE_FAVORITES);
             db.execSQL("DROP TABLE IF EXISTS " + TABLE_WORKSPACE_SCREENS);
             onCreate(db);
@@ -1276,14 +1290,16 @@
                     try {
                         int appWidgetId = mAppWidgetHost.allocateAppWidgetId();
                         values.put(LauncherSettings.Favorites.APPWIDGET_ID, appWidgetId);
-                        if (appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId,cn)) {
-                            return true;
+                        if (!appWidgetManager.bindAppWidgetIdIfAllowed(appWidgetId,cn)) {
+                            return false;
                         }
                     } catch (RuntimeException e) {
                         Log.e(TAG, "Failed to initialize external widget", e);
+                        return false;
                     }
+                } else {
+                    return false;
                 }
-                return false;
             }
 
             // Add screen id if not present
@@ -1539,24 +1555,11 @@
         }
 
         /**
-         * Parse folder starting at current {@link XmlPullParser} location.
+         * Parse folder items starting at {@link XmlPullParser} location. Allow recursive
+         * includes of items.
          */
-        private boolean loadFolder(SQLiteDatabase db, ContentValues values, Resources res,
-                XmlResourceParser parser) throws IOException, XmlPullParserException {
-            final String title;
-            final int titleResId = getAttributeResourceValue(parser, ATTR_TITLE, 0);
-            if (titleResId != 0) {
-                title = res.getString(titleResId);
-            } else {
-                title = mContext.getResources().getString(R.string.folder_name);
-            }
-
-            values.put(LauncherSettings.Favorites.TITLE, title);
-            long folderId = addFolder(db, values);
-            boolean added = folderId >= 0;
-
-            ArrayList<Long> folderItems = new ArrayList<Long>();
-
+        private void addToFolder(SQLiteDatabase db, Resources res, XmlResourceParser parser,
+                ArrayList<Long> folderItems, long folderId) throws IOException, XmlPullParserException {
             int type;
             int folderDepth = parser.getDepth();
             while ((type = parser.next()) != XmlPullParser.END_TAG ||
@@ -1586,10 +1589,33 @@
                     if (id >= 0) {
                         folderItems.add(id);
                     }
+                } else if (TAG_INCLUDE.equals(tag) && folderId >= 0) {
+                    addToFolder(db, res, parser, folderItems, folderId);
                 } else {
                     throw new RuntimeException("Folders can contain only shortcuts");
                 }
             }
+        }
+
+        /**
+         * Parse folder starting at current {@link XmlPullParser} location.
+         */
+        private boolean loadFolder(SQLiteDatabase db, ContentValues values, Resources res,
+                XmlResourceParser parser) throws IOException, XmlPullParserException {
+            final String title;
+            final int titleResId = getAttributeResourceValue(parser, ATTR_TITLE, 0);
+            if (titleResId != 0) {
+                title = res.getString(titleResId);
+            } else {
+                title = mContext.getResources().getString(R.string.folder_name);
+            }
+
+            values.put(LauncherSettings.Favorites.TITLE, title);
+            long folderId = addFolder(db, values);
+            boolean added = folderId >= 0;
+
+            ArrayList<Long> folderItems = new ArrayList<Long>();
+            addToFolder(db, res, parser, folderItems, folderId);
 
             // We can only have folders with >= 2 items, so we need to remove the
             // folder and clean up if less than 2 items were included, or some
diff --git a/src/com/android/launcher3/Utilities.java b/src/com/android/launcher3/Utilities.java
index 80d4b22..1a7c9fc 100644
--- a/src/com/android/launcher3/Utilities.java
+++ b/src/com/android/launcher3/Utilities.java
@@ -106,7 +106,7 @@
      * Indicates if the device is running LMP or higher.
      */
     public static boolean isLmpOrAbove() {
-        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.L;
+        return Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP;
     }
 
     /**
diff --git a/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java b/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java
index c3853ab..03d43a6 100644
--- a/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java
+++ b/src/com/android/launcher3/compat/AppWidgetManagerCompatVL.java
@@ -43,7 +43,7 @@
 import java.util.ArrayList;
 import java.util.List;
 
-@TargetApi(Build.VERSION_CODES.L)
+@TargetApi(Build.VERSION_CODES.LOLLIPOP)
 class AppWidgetManagerCompatVL extends AppWidgetManagerCompat {
 
     private final UserManager mUserManager;
diff --git a/src/com/android/launcher3/compat/PackageInstallerCompatVL.java b/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
index a84bf02..16ad379 100644
--- a/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
+++ b/src/com/android/launcher3/compat/PackageInstallerCompatVL.java
@@ -81,7 +81,6 @@
 
     @Override
     public void onStop() {
-        mInstaller.unregisterSessionCallback(mCallback);
     }
 
     @Override
@@ -112,7 +111,7 @@
             // Not yet ready
             return;
         }
-        if ((mPendingReplays.size() == 0) && (newInfo == null)) {
+        if ((mPendingReplays.size() == 0) && (newInfo == null) && mPendingBadgeUpdates.isEmpty()) {
             // Nothing to update
             return;
         }
diff --git a/src/com/android/launcher3/compat/UserHandleCompat.java b/src/com/android/launcher3/compat/UserHandleCompat.java
index 4baf052..2ae6731 100644
--- a/src/com/android/launcher3/compat/UserHandleCompat.java
+++ b/src/com/android/launcher3/compat/UserHandleCompat.java
@@ -20,6 +20,8 @@
 import android.os.Build;
 import android.os.UserHandle;
 
+import com.android.launcher3.Utilities;
+
 public class UserHandleCompat {
     private UserHandle mUser;
 
@@ -86,9 +88,8 @@
      * profiles so this is a no-op.
      */
     public void addToIntent(Intent intent, String name) {
-        // TODO change this to use api version once L gets an API number.
-        if ("L".equals(Build.VERSION.CODENAME) && mUser != null) {
+        if (Utilities.isLmpOrAbove() && mUser != null) {
             intent.putExtra(name, mUser);
         }
     }
-}
\ No newline at end of file
+}