diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 33ab1270..2a926041 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -21,8 +21,8 @@
 <manifest
     package="org.isoron.uhabits"
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:versionCode="27"
-    android:versionName="1.7.0">
+    android:versionCode="28"
+    android:versionName="1.7.1">
 
     <uses-permission android:name="android.permission.VIBRATE"/>
 
diff --git a/app/src/main/java/org/isoron/uhabits/HabitsApplication.java b/app/src/main/java/org/isoron/uhabits/HabitsApplication.java
index bad1c4ee..8e2e1e8a 100644
--- a/app/src/main/java/org/isoron/uhabits/HabitsApplication.java
+++ b/app/src/main/java/org/isoron/uhabits/HabitsApplication.java
@@ -21,10 +21,10 @@ package org.isoron.uhabits;
 
 import android.app.*;
 import android.content.*;
-import android.support.annotation.*;
 
 import com.activeandroid.*;
 
+import org.isoron.uhabits.models.sqlite.*;
 import org.isoron.uhabits.notifications.*;
 import org.isoron.uhabits.preferences.*;
 import org.isoron.uhabits.tasks.*;
@@ -88,7 +88,16 @@ public class HabitsApplication extends Application
             if (db.exists()) db.delete();
         }
 
-        DatabaseUtils.initializeActiveAndroid(context);
+        try
+        {
+            DatabaseUtils.initializeActiveAndroid(context);
+        }
+        catch (InvalidDatabaseVersionException e)
+        {
+            File db = DatabaseUtils.getDatabaseFile(context);
+            db.renameTo(new File(db.getAbsolutePath() + ".invalid"));
+            DatabaseUtils.initializeActiveAndroid(context);
+        }
 
         widgetUpdater = component.getWidgetUpdater();
         widgetUpdater.startListening();
diff --git a/app/src/main/java/org/isoron/uhabits/activities/common/views/BundleSavedState.java b/app/src/main/java/org/isoron/uhabits/activities/common/views/BundleSavedState.java
index 9f61d88f..fe33993d 100644
--- a/app/src/main/java/org/isoron/uhabits/activities/common/views/BundleSavedState.java
+++ b/app/src/main/java/org/isoron/uhabits/activities/common/views/BundleSavedState.java
@@ -20,9 +20,8 @@
 package org.isoron.uhabits.activities.common.views;
 
 import android.os.*;
-import android.view.*;
 
-public class BundleSavedState extends View.BaseSavedState
+public class BundleSavedState extends android.support.v4.view.AbsSavedState
 {
     public static final Parcelable.Creator<BundleSavedState> CREATOR =
         new Parcelable.Creator<BundleSavedState>()
@@ -51,7 +50,7 @@ public class BundleSavedState extends View.BaseSavedState
     public BundleSavedState(Parcel source)
     {
         super(source);
-        this.bundle = source.readBundle();
+        this.bundle = source.readBundle(getClass().getClassLoader());
     }
 
     @Override
diff --git a/app/src/main/java/org/isoron/uhabits/activities/habits/list/views/HeaderView.java b/app/src/main/java/org/isoron/uhabits/activities/habits/list/views/HeaderView.java
index e4863cd5..4eb1f431 100644
--- a/app/src/main/java/org/isoron/uhabits/activities/habits/list/views/HeaderView.java
+++ b/app/src/main/java/org/isoron/uhabits/activities/habits/list/views/HeaderView.java
@@ -50,8 +50,6 @@ public class HeaderView extends ScrollableChart
 
     private RectF rect;
 
-    private int maxDataOffset;
-
     public HeaderView(Context context, AttributeSet attrs)
     {
         super(context, attrs);
@@ -76,7 +74,6 @@ public class HeaderView extends ScrollableChart
 
         Resources res = context.getResources();
         setScrollerBucketSize((int) res.getDimension(R.dimen.checkmarkWidth));
-        setDirection(shouldReverseCheckmarks() ? 1 : -1);
 
         StyledResources sr = new StyledResources(context);
         paint = new TextPaint();
@@ -99,7 +96,7 @@ public class HeaderView extends ScrollableChart
     @Override
     public void onCheckmarkOrderChanged()
     {
-        setDirection(shouldReverseCheckmarks() ? 1 : -1);
+        updateDirection();
         postInvalidate();
     }
 
@@ -112,11 +109,20 @@ public class HeaderView extends ScrollableChart
     @Override
     protected void onAttachedToWindow()
     {
+        updateDirection();
         super.onAttachedToWindow();
         if (prefs != null) prefs.addListener(this);
         if (midnightTimer != null) midnightTimer.addListener(this);
     }
 
+    private void updateDirection()
+    {
+        int direction = -1;
+        if (shouldReverseCheckmarks()) direction *= -1;
+        if (InterfaceUtils.isLayoutRtl(this)) direction *= -1;
+        setDirection(direction);
+    }
+
     @Override
     protected void onDetachedFromWindow()
     {
@@ -145,6 +151,7 @@ public class HeaderView extends ScrollableChart
         float width = res.getDimension(R.dimen.checkmarkWidth);
         float height = res.getDimension(R.dimen.checkmarkHeight);
         boolean reverse = shouldReverseCheckmarks();
+        boolean isRtl = InterfaceUtils.isLayoutRtl(this);
 
         day.add(GregorianCalendar.DAY_OF_MONTH, -getDataOffset());
         float em = paint.measureText("m");
@@ -153,9 +160,13 @@ public class HeaderView extends ScrollableChart
         {
             rect.set(0, 0, width, height);
             rect.offset(canvas.getWidth(), 0);
+
             if(reverse) rect.offset(- (i + 1) * width, 0);
             else rect.offset((i - buttonCount) * width, 0);
 
+            if (isRtl) rect.set(canvas.getWidth() - rect.right, rect.top,
+                canvas.getWidth() - rect.left, rect.bottom);
+
             String text = DateUtils.formatHeaderDate(day).toUpperCase();
             String[] lines = text.split("\n");
 
diff --git a/app/src/main/java/org/isoron/uhabits/io/LoopDBImporter.java b/app/src/main/java/org/isoron/uhabits/io/LoopDBImporter.java
index a3ebcf88..bfcf5886 100644
--- a/app/src/main/java/org/isoron/uhabits/io/LoopDBImporter.java
+++ b/app/src/main/java/org/isoron/uhabits/io/LoopDBImporter.java
@@ -19,20 +19,20 @@
 
 package org.isoron.uhabits.io;
 
-import android.content.Context;
-import android.database.Cursor;
-import android.database.sqlite.SQLiteDatabase;
-import android.support.annotation.NonNull;
+import android.content.*;
+import android.database.*;
+import android.database.sqlite.*;
+import android.support.annotation.*;
+import android.util.*;
 
-import com.activeandroid.ActiveAndroid;
+import com.activeandroid.*;
 
-import org.isoron.uhabits.AppContext;
+import org.isoron.uhabits.*;
 import org.isoron.uhabits.models.*;
 import org.isoron.uhabits.utils.DatabaseUtils;
-import org.isoron.uhabits.utils.FileUtils;
+import org.isoron.uhabits.utils.*;
 
-import java.io.File;
-import java.io.IOException;
+import java.io.*;
 
 import javax.inject.*;
 
@@ -45,7 +45,8 @@ public class LoopDBImporter extends AbstractImporter
     private Context context;
 
     @Inject
-    public LoopDBImporter(@NonNull @AppContext Context context, @NonNull HabitList habits)
+    public LoopDBImporter(@NonNull @AppContext Context context,
+                          @NonNull HabitList habits)
     {
         super(habits);
         this.context = context;
@@ -59,15 +60,29 @@ public class LoopDBImporter extends AbstractImporter
         SQLiteDatabase db = SQLiteDatabase.openDatabase(file.getPath(), null,
             SQLiteDatabase.OPEN_READONLY);
 
+        boolean canHandle = true;
+
         Cursor c = db.rawQuery(
             "select count(*) from SQLITE_MASTER where name=? or name=?",
-            new String[]{"Checkmarks", "Repetitions"});
+            new String[]{ "Checkmarks", "Repetitions" });
 
-        boolean result = (c.moveToFirst() && c.getInt(0) == 2);
+        if (!c.moveToFirst() || c.getInt(0) != 2)
+        {
+            Log.w("LoopDBImporter", "Cannot handle file: tables not found");
+            canHandle = false;
+        }
+
+        if (db.getVersion() > BuildConfig.databaseVersion)
+        {
+            Log.w("LoopDBImporter", String.format(
+                "Cannot handle file: incompatible version: %d > %d",
+                db.getVersion(), BuildConfig.databaseVersion));
+            canHandle = false;
+        }
 
         c.close();
         db.close();
-        return result;
+        return canHandle;
     }
 
     @Override
diff --git a/app/src/main/java/org/isoron/uhabits/models/sqlite/InvalidDatabaseVersionException.java b/app/src/main/java/org/isoron/uhabits/models/sqlite/InvalidDatabaseVersionException.java
new file mode 100644
index 00000000..6fb417cc
--- /dev/null
+++ b/app/src/main/java/org/isoron/uhabits/models/sqlite/InvalidDatabaseVersionException.java
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2016 Álinson Santos Xavier <isoron@gmail.com>
+ *
+ * This file is part of Loop Habit Tracker.
+ *
+ * Loop Habit Tracker is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by the
+ * Free Software Foundation, either version 3 of the License, or (at your
+ * option) any later version.
+ *
+ * Loop Habit Tracker is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package org.isoron.uhabits.models.sqlite;
+
+public class InvalidDatabaseVersionException extends RuntimeException
+{
+}
diff --git a/app/src/main/java/org/isoron/uhabits/preferences/WidgetPreferences.java b/app/src/main/java/org/isoron/uhabits/preferences/WidgetPreferences.java
index f7830e2b..56566f63 100644
--- a/app/src/main/java/org/isoron/uhabits/preferences/WidgetPreferences.java
+++ b/app/src/main/java/org/isoron/uhabits/preferences/WidgetPreferences.java
@@ -23,6 +23,7 @@ import android.content.*;
 import android.preference.*;
 
 import org.isoron.uhabits.*;
+import org.isoron.uhabits.models.*;
 
 import javax.inject.*;
 
@@ -48,7 +49,7 @@ public class WidgetPreferences
     public long getHabitIdFromWidgetId(int widgetId)
     {
         Long habitId = prefs.getLong(getHabitIdKey(widgetId), -1);
-        if (habitId < 0) throw new RuntimeException("widget not found");
+        if (habitId < 0) throw new HabitNotFoundException();
 
         return habitId;
     }
diff --git a/app/src/main/java/org/isoron/uhabits/utils/DatabaseUtils.java b/app/src/main/java/org/isoron/uhabits/utils/DatabaseUtils.java
index 5e6d9e97..4db87a8d 100644
--- a/app/src/main/java/org/isoron/uhabits/utils/DatabaseUtils.java
+++ b/app/src/main/java/org/isoron/uhabits/utils/DatabaseUtils.java
@@ -25,6 +25,7 @@ import android.support.annotation.*;
 import com.activeandroid.*;
 
 import org.isoron.uhabits.*;
+import org.isoron.uhabits.models.sqlite.*;
 import org.isoron.uhabits.models.sqlite.records.*;
 
 import java.io.*;
@@ -76,7 +77,16 @@ public abstract class DatabaseUtils
                 RepetitionRecord.class, ScoreRecord.class, StreakRecord.class)
             .create();
 
-        ActiveAndroid.initialize(dbConfig);
+        try
+        {
+            ActiveAndroid.initialize(dbConfig);
+        }
+        catch (RuntimeException e)
+        {
+            if(e.getMessage().contains("downgrade"))
+                throw new InvalidDatabaseVersionException();
+            else throw e;
+        }
     }
 
     @SuppressWarnings("ResultOfMethodCallIgnored")
diff --git a/app/src/main/java/org/isoron/uhabits/utils/InterfaceUtils.java b/app/src/main/java/org/isoron/uhabits/utils/InterfaceUtils.java
index 946efc0a..645c6192 100644
--- a/app/src/main/java/org/isoron/uhabits/utils/InterfaceUtils.java
+++ b/app/src/main/java/org/isoron/uhabits/utils/InterfaceUtils.java
@@ -23,6 +23,7 @@ import android.content.*;
 import android.content.res.*;
 import android.graphics.*;
 import android.support.annotation.*;
+import android.support.v4.view.*;
 import android.util.*;
 import android.view.*;
 import android.widget.*;
@@ -67,5 +68,10 @@ public abstract class InterfaceUtils
             if (child instanceof TextView)
                 ((TextView) child).setOnEditorActionListener(listener);
         }
+
+    public static boolean isLayoutRtl(View view)
+    {
+        return ViewCompat.getLayoutDirection(view) ==
+               ViewCompat.LAYOUT_DIRECTION_RTL;
     }
 }
diff --git a/app/src/main/java/org/isoron/uhabits/widgets/BaseWidgetProvider.java b/app/src/main/java/org/isoron/uhabits/widgets/BaseWidgetProvider.java
index 6c6008d3..e0a18885 100644
--- a/app/src/main/java/org/isoron/uhabits/widgets/BaseWidgetProvider.java
+++ b/app/src/main/java/org/isoron/uhabits/widgets/BaseWidgetProvider.java
@@ -25,6 +25,8 @@ import android.os.*;
 import android.support.annotation.*;
 import android.widget.*;
 
+import com.activeandroid.util.*;
+
 import org.isoron.uhabits.*;
 import org.isoron.uhabits.models.*;
 import org.isoron.uhabits.preferences.*;
@@ -76,8 +78,15 @@ public abstract class BaseWidgetProvider extends AppWidgetProvider
 
         for (int id : ids)
         {
-            BaseWidget widget = getWidgetFromId(context, id);
-            widget.delete();
+            try
+            {
+                BaseWidget widget = getWidgetFromId(context, id);
+                widget.delete();
+            }
+            catch (HabitNotFoundException e)
+            {
+                Log.e("BaseWidgetProvider", e);
+            }
         }
     }
 
diff --git a/app/src/main/res/layout/about.xml b/app/src/main/res/layout/about.xml
index 5fe1b1a2..2869631d 100644
--- a/app/src/main/res/layout/about.xml
+++ b/app/src/main/res/layout/about.xml
@@ -317,6 +317,10 @@
                 <TextView
                     style="@style/About.Item"
                     android:text="Aman Satnami (हिन्दी)"/>
+
+                <TextView
+                    style="@style/About.Item"
+                    android:text="Niraj Yadav (हिन्दी)"/>
             </LinearLayout>
         </LinearLayout>
     </ScrollView>
diff --git a/app/src/main/res/values-hi/strings.xml b/app/src/main/res/values-hi/strings.xml
index 45158aac..c37f603f 100644
--- a/app/src/main/res/values-hi/strings.xml
+++ b/app/src/main/res/values-hi/strings.xml
@@ -91,6 +91,7 @@
   <string name="interval_2_hour">2 घंटा</string>
   <string name="interval_4_hour">4 घंटा</string>
   <string name="interval_8_hour">8 घंटा</string>
+  <string name="interval_24_hour">24 घंटे</string>
   <string name="pref_toggle_title">टॉगल पुनरावृत्ति  हल्का दबाने से</string>
   <string name="pref_toggle_description">\"
 अधिक सुविधाजनक है, लेकिन आकस्मिक टॉगल  हो सकता है ।\"</string>
@@ -179,7 +180,7 @@ repetitions की संख्या\"</string>
  इस फ़ाइल में वापस आयात नहीं किया जा सकता है।\"</string>
   <string name="export_full_backup_summary">ऐसी फाइल्स उत्पन्न करता है जिसमे आपका सारा डेटा रहता है इस फ़ाइल को वापस आयात किया जा सकता है।</string>
   <string name="bug_report_failed">बग रिपोर्ट जनरेट करने मे असफल</string>
-  <string name="generate_bug_report">बग रिपोर्ट जनरेट करने मे सफल</string>
+  <string name="generate_bug_report">बग रिपोर्ट जनरेट करें</string>
   <string name="troubleshooting">\"
 समस्या निवारण\"</string>
   <string name="help_translate">\"
@@ -198,15 +199,26 @@ repetitions की संख्या\"</string>
   <string name="quarter">तिमाही</string>
   <string name="year">साल</string>
   <!-- Middle part of the sentence '1 time in xx days' -->
-  <string name="time_every">समय शुरू</string>
+  <string name="time_every">समय में</string>
   <string name="every_x_days">\"
 हर %d दिन\"</string>
   <string name="every_x_weeks">\"
 हर %d हफ्ते\"</string>
   <string name="every_x_months">\"
-हर %d साल\"</string>
+हर %d महीने\"</string>
   <string name="score">स्कोर</string>
   <string name="reminder_sound">अनुस्मारक ध्वनि</string>
   <string name="none">\"
 कोई आवाज नहीं\"</string>
+  <string name="filter">फिल्टर</string>
+  <string name="repair_database">डेटाबेस को रिपेयर करें</string>
+  <string name="database_repaired">डेटाबेस रिपेयर सफल</string>
+  <string name="habit">आदत</string>
+  <string name="sort">सॉर्ट करें</string>
+  <string name="manually">मैन्यूअली</string>
+  <string name="by_name">नाम द्वारा</string>
+  <string name="by_color">रंग द्वारा</string>
+  <string name="by_score">स्कोर से</string>
+  <string name="download">डाउनलोड</string>
+  <string name="export">एक्सपोर्ट करे</string>
 </resources>
diff --git a/app/src/main/res/values-id/strings.xml b/app/src/main/res/values-id/strings.xml
index cc808293..4602cbfd 100644
--- a/app/src/main/res/values-id/strings.xml
+++ b/app/src/main/res/values-id/strings.xml
@@ -19,6 +19,7 @@
   ~ with this program. If not, see <http://www.gnu.org/licenses/>.
   -->
 <resources>
+  <string name="app_name">Loop Habit Tracker</string>
   <string name="main_activity_title">Kebiasaan</string>
   <string name="action_settings">Pengaturan</string>
   <string name="edit">Ubah</string>
@@ -73,6 +74,7 @@
   <string name="interval_2_hour">2 jam</string>
   <string name="interval_4_hour">4 jam</string>
   <string name="interval_8_hour">8 jam</string>
+  <string name="interval_24_hour">24 jam</string>
   <string name="pref_toggle_title">Tandai dengan cepat.</string>
   <string name="pref_toggle_description">Lebih nyaman namun memungkinkan kesalahan.</string>
   <string name="pref_snooze_interval_title">Durasi tunda sejenak pada pengingat</string>