diff --git a/README.md b/README.md
index e15eb6ee..487dcfc6 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-[![License](https://img.shields.io/badge/license-GNU_GPLv3-orange.svg)](https://github.com/mkulesh/microMathematics/blob/master/LICENSE) [![Build Status](https://travis-ci.org/mkulesh/microMathematics.svg?branch=master)](https://travis-ci.org/mkulesh/microMathematics) [![Download unsigned APK from latest autobuild](https://img.shields.io/badge/APK-autobuild-blue.svg)](https://github.com/mkulesh/microMathematics/raw/autobuild/autobuild/microMathematics-v2.17.0.apk)
+[![License](https://img.shields.io/badge/license-GNU_GPLv3-orange.svg)](https://github.com/mkulesh/microMathematics/blob/master/LICENSE) [![Build Status](https://travis-ci.org/mkulesh/microMathematics.svg?branch=master)](https://travis-ci.org/mkulesh/microMathematics) [![Download unsigned APK from latest autobuild](https://img.shields.io/badge/APK-autobuild-blue.svg)](https://github.com/mkulesh/microMathematics/raw/autobuild/autobuild/microMathematics-v2.17.1.apk)
 
 # <img src="https://github.com/mkulesh/microMathematics/blob/master/images/icon.png" align="center" height="48" width="48"> "microMathematics Plus - Extended visual calculator"
 
@@ -42,7 +42,7 @@ For more screenshots, see directory images/screenshots.
 ## Documentation
 * [Supported Functions Overview](http://htmlpreview.github.io/?https://github.com/mkulesh/microMathematics/blob/master/doc/html/functions_overview.html)
 * [Supported Units Overview](http://htmlpreview.github.io/?https://github.com/mkulesh/microMathematics/blob/master/doc/html/units_overview.html)
-* [The latest PDF version of the User Manual](https://docs.google.com/viewer?url=https://github.com/mkulesh/microMathematics/raw/supplement/doc/microMathematics-v2.17.0.pdf)
+* [The latest PDF version of the User Manual](https://docs.google.com/viewer?url=https://github.com/mkulesh/microMathematics/raw/supplement/doc/microMathematics-v2.17.1.pdf)
 
 ## Posts on Habrahabr (in Russian)
 
diff --git a/app/build.gradle b/app/build.gradle
index 45fee1b1..fb8b37df 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -8,7 +8,7 @@ android {
         minSdkVersion 14
         targetSdkVersion 26
         versionCode 308
-        versionName "2.17.0"
+        versionName "2.17.1"
         testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
diff --git a/app/src/main/java/com/mkulesh/micromath/BaseFragment.java b/app/src/main/java/com/mkulesh/micromath/BaseFragment.java
index eaf150f9..82dd2131 100644
--- a/app/src/main/java/com/mkulesh/micromath/BaseFragment.java
+++ b/app/src/main/java/com/mkulesh/micromath/BaseFragment.java
@@ -182,7 +182,7 @@ protected void setWorksheetName(CharSequence name)
     protected void onSaveFinished()
     {
         // Allow save button (for the case if a read-only asset is saved on SD card)
-        final MenuItem saveItem = (mainMenu == null)? null : mainMenu.findItem(R.id.action_save);
+        final MenuItem saveItem = (mainMenu == null) ? null : mainMenu.findItem(R.id.action_save);
         if (saveItem != null)
         {
             saveItem.setVisible(true);
diff --git a/app/src/main/java/com/mkulesh/micromath/dialogs/DialogResultDetails.java b/app/src/main/java/com/mkulesh/micromath/dialogs/DialogResultDetails.java
index afac84f4..9a23c6b9 100644
--- a/app/src/main/java/com/mkulesh/micromath/dialogs/DialogResultDetails.java
+++ b/app/src/main/java/com/mkulesh/micromath/dialogs/DialogResultDetails.java
@@ -146,7 +146,7 @@ public ArgumentValueAdapter(Context context, ArrayList<ArgumentValueItem> list,
         {
             super(context, 0, list);
             this.docProp = docProp;
-            this.targetUnit = resProp != null? TermParser.parseUnits(resProp.units) : null;
+            this.targetUnit = resProp != null ? TermParser.parseUnits(resProp.units) : null;
         }
 
         @Override
diff --git a/app/src/main/java/com/mkulesh/micromath/formula/PaletteButton.java b/app/src/main/java/com/mkulesh/micromath/formula/PaletteButton.java
index 08a42e80..469fdbcf 100644
--- a/app/src/main/java/com/mkulesh/micromath/formula/PaletteButton.java
+++ b/app/src/main/java/com/mkulesh/micromath/formula/PaletteButton.java
@@ -157,6 +157,7 @@ public void setEnabled(Category t, boolean value)
      *********************************************************/
 
     private int colorAttrId = Integer.MIN_VALUE;
+
     public void setColorAttr(@AttrRes int attrId)
     {
         if (this.colorAttrId != attrId)
diff --git a/app/src/main/java/com/mkulesh/micromath/formula/TermField.java b/app/src/main/java/com/mkulesh/micromath/formula/TermField.java
index e0d6a9d6..29a4f710 100644
--- a/app/src/main/java/com/mkulesh/micromath/formula/TermField.java
+++ b/app/src/main/java/com/mkulesh/micromath/formula/TermField.java
@@ -519,7 +519,7 @@ public void readFromXml(XmlPullParser parser) throws Exception
             }
             else if (unit != null && !unit.isEmpty())
             {
-                setText(text.isEmpty()? unit : text + TermParser.UNIT_SEPARATOR + unit);
+                setText(text.isEmpty() ? unit : text + TermParser.UNIT_SEPARATOR + unit);
             }
             else
             {
@@ -558,7 +558,7 @@ public void writeToXml(XmlSerializer serializer) throws Exception
         {
             if (isEmptyOrAutoContent())
             {
-                serializer.attribute(FormulaList.XML_NS, FormulaList.XML_PROP_TEXT,  "");
+                serializer.attribute(FormulaList.XML_NS, FormulaList.XML_PROP_TEXT, "");
             }
             else if (parser.getUnit() != null && parser.getUnitTags() != null)
             {
diff --git a/app/src/main/java/com/mkulesh/micromath/formula/terms/Intervals.java b/app/src/main/java/com/mkulesh/micromath/formula/terms/Intervals.java
index ffea6ed6..6f2dce6b 100644
--- a/app/src/main/java/com/mkulesh/micromath/formula/terms/Intervals.java
+++ b/app/src/main/java/com/mkulesh/micromath/formula/terms/Intervals.java
@@ -165,7 +165,7 @@ public Intervals(Context context, AttributeSet attrs)
     @Override
     public CalculatedValue.ValueType getValue(CalculaterTask thread, CalculatedValue outValue) throws CancelException
     {
-        Pair<Unit, Integer> units = compareUnits(new TermField []{minValueTerm, nextValueTerm, maxValueTerm});
+        Pair<Unit, Integer> units = compareUnits(new TermField[]{ minValueTerm, nextValueTerm, maxValueTerm });
         if (units.getFirst() != null && units.getSecond() != 3)
         {
             return outValue.invalidate(CalculatedValue.ErrorType.INCOMPATIBLE_UNIT);
@@ -280,7 +280,7 @@ else if (v.getText().toString()
      * FormulaTermInterval-specific methods
      *********************************************************/
 
-    private Pair<Unit, Integer> compareUnits(TermField [] terms)
+    private Pair<Unit, Integer> compareUnits(TermField[] terms)
     {
         Unit unit = terms[0].getParser().getUnit();
         int compatibleNumber = 0;
@@ -296,7 +296,7 @@ private Pair<Unit, Integer> compareUnits(TermField [] terms)
                 unit = tp;
             }
         }
-        return new Pair<>(unit == null? null : unit.getStandardUnit(), compatibleNumber);
+        return new Pair<>(unit == null ? null : unit.getStandardUnit(), compatibleNumber);
     }
 
     /**
@@ -304,7 +304,7 @@ private Pair<Unit, Integer> compareUnits(TermField [] terms)
      */
     public ArrayList<CalculatedValue> getInterval(CalculaterTask thread) throws CancelException
     {
-        Pair<Unit, Integer> units = compareUnits(new TermField []{minValueTerm, nextValueTerm, maxValueTerm});
+        Pair<Unit, Integer> units = compareUnits(new TermField[]{ minValueTerm, nextValueTerm, maxValueTerm });
         if (units.getFirst() != null && units.getSecond() != 3)
         {
             return null;
diff --git a/app/src/main/java/com/mkulesh/micromath/formula/terms/TermFactory.java b/app/src/main/java/com/mkulesh/micromath/formula/terms/TermFactory.java
index 52e00522..1f1189e9 100644
--- a/app/src/main/java/com/mkulesh/micromath/formula/terms/TermFactory.java
+++ b/app/src/main/java/com/mkulesh/micromath/formula/terms/TermFactory.java
@@ -63,7 +63,7 @@ public static void prepare()
         allTerms.addAll(Arrays.asList(SeriesIntegrals.LoopType.values()));
 
         termMap = new HashMap<>();
-        for(TermTypeIf t : allTerms)
+        for (TermTypeIf t : allTerms)
         {
             termMap.put(t.getLowerCaseName(), t);
         }
diff --git a/app/src/main/java/com/mkulesh/micromath/io/ExportToLatex.java b/app/src/main/java/com/mkulesh/micromath/io/ExportToLatex.java
index d622922f..5ca97393 100644
--- a/app/src/main/java/com/mkulesh/micromath/io/ExportToLatex.java
+++ b/app/src/main/java/com/mkulesh/micromath/io/ExportToLatex.java
@@ -122,7 +122,7 @@ public class ExportToLatex
             { "Ω", "\\Omega" }, { "ω", "\\omega" } };
 
     protected final String[][] supplementTable = new String[][]{
-            { "°", "\\degree" }};
+            { "°", "\\degree" } };
 
     public ExportToLatex(Context context, OutputStream stream, final Uri uri, final AdapterIf adapter,
                          final Exporter.Parameters exportParameters) throws Exception
diff --git a/app/src/main/java/com/mkulesh/micromath/io/ExportToMathJax.java b/app/src/main/java/com/mkulesh/micromath/io/ExportToMathJax.java
index a4a4030d..f544704c 100644
--- a/app/src/main/java/com/mkulesh/micromath/io/ExportToMathJax.java
+++ b/app/src/main/java/com/mkulesh/micromath/io/ExportToMathJax.java
@@ -62,7 +62,7 @@ public void write(FormulaList formulas) throws Exception
         writer.append("<html><head>\n");
         writer.append("<meta http-equiv=\"Content-Type\" content=\"text/html; charset=utf-8\">\n");
         writer.append("<title>");
-        writer.append(isPropEmpty(docProp.title)? fileName : docProp.title);
+        writer.append(isPropEmpty(docProp.title) ? fileName : docProp.title);
         writer.append("</title>\n");
 
         writer.append("<script type=\"text/x-mathjax-config\">\n");
diff --git a/app/src/main/java/com/mkulesh/micromath/io/ImportFromSMathStudio.java b/app/src/main/java/com/mkulesh/micromath/io/ImportFromSMathStudio.java
index 8aa8b810..a4149502 100644
--- a/app/src/main/java/com/mkulesh/micromath/io/ImportFromSMathStudio.java
+++ b/app/src/main/java/com/mkulesh/micromath/io/ImportFromSMathStudio.java
@@ -290,7 +290,7 @@ private void parseRegion(final Element e, final Element prevRegion, final XmlSer
                 final int prevButton = prevTop + Integer.parseInt(prevRegion.getAttribute("height"));
                 final int thisTop = Integer.parseInt(e.getAttribute("top"));
                 final int thisButton = thisTop + Integer.parseInt(e.getAttribute("height"));
-                final int thisCenter = (thisTop + thisButton)/2;
+                final int thisCenter = (thisTop + thisButton) / 2;
                 if (thisCenter > prevTop && thisCenter < prevButton)
                 {
                     inRightOfPrevious = true;
@@ -403,7 +403,7 @@ private void parsePlotFunctions(List<Element> elements, XmlSerializer serializer
             XmlUtils.removeLast(elements);
             XmlUtils.removeLast(elements);
             // add functions
-            for(int i = 0; i < argNumber; i++)
+            for (int i = 0; i < argNumber; i++)
             {
                 final String suffix = Integer.toString(argNumber - i);
                 LineProperties newProp = new LineProperties();
@@ -514,7 +514,7 @@ private void parseTerm(final CharSequence key, final List<Element> elements, fin
             // A text term
             final String newText = textMap.get(p.text);
             serializer.attribute(FormulaList.XML_NS, FormulaList.XML_PROP_TEXT,
-                    newText != null? newText : p.text);
+                    newText != null ? newText : p.text);
         }
         else if (p.isEqual(SM_TAG_MATH_OPERATOR, 1, "-"))
         {
@@ -740,7 +740,7 @@ private String makeFunctionName(List<Element> elements, ExpressionProperties p)
             String retValue = args.get(0) + "[";
             for (int i = 1; i < args.size(); i++)
             {
-                retValue += (i > 1? "," : "") + args.get(i);
+                retValue += (i > 1 ? "," : "") + args.get(i);
             }
             return retValue + "]";
         }
@@ -749,7 +749,7 @@ private String makeFunctionName(List<Element> elements, ExpressionProperties p)
             String retValue = p.text + "(";
             for (int i = 0; i < args.size(); i++)
             {
-                retValue += (i > 0? "," : "") + args.get(i);
+                retValue += (i > 0 ? "," : "") + args.get(i);
             }
             return retValue + ")";
         }
diff --git a/app/src/main/java/com/mkulesh/micromath/math/CalculatedValue.java b/app/src/main/java/com/mkulesh/micromath/math/CalculatedValue.java
index e7516bfb..fe271f1b 100644
--- a/app/src/main/java/com/mkulesh/micromath/math/CalculatedValue.java
+++ b/app/src/main/java/com/mkulesh/micromath/math/CalculatedValue.java
@@ -317,7 +317,7 @@ private boolean unitExists(CalculatedValue f, CalculatedValue g)
     public String toString()
     {
         return valueType.toString() + "[" + real + ", " + imaginary + "]" +
-                (unit == null? "?" : unit.toString());
+                (unit == null ? "?" : unit.toString());
     }
 
     public String getResultDescription(DocumentProperties doc)
@@ -552,7 +552,7 @@ public ValueType pow(CalculatedValue f, CalculatedValue g)
     {
         if (unitExists(f, g))
         {
-            unit = powUnit(f,g);
+            unit = powUnit(f, g);
             if (unit == null)
             {
                 return invalidate(ErrorType.INCOMPATIBLE_UNIT);
diff --git a/app/src/main/java/com/mkulesh/micromath/properties/DocumentProperties.java b/app/src/main/java/com/mkulesh/micromath/properties/DocumentProperties.java
index b2b009fa..d82d47ae 100644
--- a/app/src/main/java/com/mkulesh/micromath/properties/DocumentProperties.java
+++ b/app/src/main/java/com/mkulesh/micromath/properties/DocumentProperties.java
@@ -129,7 +129,7 @@ public void readFromXml(XmlPullParser parser)
         final DecimalFormat df = CompatUtils.getDecimalFormat("0.00000");
 
         String attr = parser.getAttributeValue(null, XML_PROP_VERSION);
-        documentVersion = (attr != null)? Integer.parseInt(attr) : DEFAULT_DOCUMENT_VERSION;
+        documentVersion = (attr != null) ? Integer.parseInt(attr) : DEFAULT_DOCUMENT_VERSION;
         attr = parser.getAttributeValue(null, XML_PROP_AUTHOR);
         author = (attr == null) ? EMPTY_STRING : attr;
         attr = parser.getAttributeValue(null, XML_PROP_TITLE);
diff --git a/app/src/main/java/com/mkulesh/micromath/utils/ViewUtils.java b/app/src/main/java/com/mkulesh/micromath/utils/ViewUtils.java
index b854b733..5de536a0 100644
--- a/app/src/main/java/com/mkulesh/micromath/utils/ViewUtils.java
+++ b/app/src/main/java/com/mkulesh/micromath/utils/ViewUtils.java
@@ -242,7 +242,7 @@ public void run()
     public static void updateMenuIconColor(Context context, MenuItem m)
     {
         CompatUtils.setDrawableColorAttr(context, m.getIcon(),
-                        m.isEnabled() ? R.attr.colorMicroMathIcon : R.attr.colorPrimaryDark);
+                m.isEnabled() ? R.attr.colorMicroMathIcon : R.attr.colorPrimaryDark);
     }
 
     /**
diff --git a/app/src/main/java/com/mkulesh/micromath/widgets/CustomEditText.java b/app/src/main/java/com/mkulesh/micromath/widgets/CustomEditText.java
index 1391ecc6..aa1010fd 100644
--- a/app/src/main/java/com/mkulesh/micromath/widgets/CustomEditText.java
+++ b/app/src/main/java/com/mkulesh/micromath/widgets/CustomEditText.java
@@ -232,7 +232,7 @@ public void updateTextSize(ScaledDimensions dimen, int termDepth, ScaledDimensio
     public void updateMinimumWidth(ScaledDimensions dimen)
     {
         final int newWidth = length() == 0 ? dimen.get(ScaledDimensions.Type.TEXT_MIN_WIDTH) : 0;
-        final int prevWidth = Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN?
+        final int prevWidth = Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN ?
                 getMinimumWidth() : Integer.MIN_VALUE;
         if (prevWidth != newWidth)
         {
@@ -538,8 +538,8 @@ protected void onSelectionChanged(int selStart, int selEnd)
     {
         super.onSelectionChanged(selEnd, selEnd);
         if (CompatUtils.isMarshMallowOrLater() &&
-            isTextFragment() && getText().length() > 0 &&
-            hasSelection() && selEnd - selStart == getText().length())
+                isTextFragment() && getText().length() > 0 &&
+                hasSelection() && selEnd - selStart == getText().length())
         {
             // null for input view means that we will start ActionMode without owner:
             // the root formula will be selected instead of owner term
@@ -553,6 +553,7 @@ protected void onSelectionChanged(int selStart, int selEnd)
 
     private int backgroundDrawableId = Integer.MIN_VALUE;
     private int backgroundAttrId = Integer.MIN_VALUE;
+
     public void setBackgroundAttr(@DrawableRes int drawableId, @AttrRes int attrId)
     {
         if (this.backgroundDrawableId != drawableId)
diff --git a/app/src/main/java/com/mkulesh/micromath/widgets/CustomLayout.java b/app/src/main/java/com/mkulesh/micromath/widgets/CustomLayout.java
index 84a4d41b..71962832 100644
--- a/app/src/main/java/com/mkulesh/micromath/widgets/CustomLayout.java
+++ b/app/src/main/java/com/mkulesh/micromath/widgets/CustomLayout.java
@@ -150,7 +150,7 @@ public void updateTextSize(ScaledDimensions dimen, int termDepth)
 
     public void setContentValid(boolean contentValid)
     {
-        if(this.contentValid != contentValid)
+        if (this.contentValid != contentValid)
         {
             this.contentValid = contentValid;
             invalidate();
diff --git a/app/src/main/java/com/mkulesh/micromath/widgets/TwoDScrollView.java b/app/src/main/java/com/mkulesh/micromath/widgets/TwoDScrollView.java
index d2a33839..7ea991e3 100644
--- a/app/src/main/java/com/mkulesh/micromath/widgets/TwoDScrollView.java
+++ b/app/src/main/java/com/mkulesh/micromath/widgets/TwoDScrollView.java
@@ -778,9 +778,9 @@ public boolean fullScroll(int direction, boolean horizontal)
      * area, the focus is reclaimed by this scrollview.
      *
      * @param directionY the scroll direction: {@link android.view.View#FOCUS_UP} to go upward
-     *                  {@link android.view.View#FOCUS_DOWN} to downward
-     * @param top       the top offset of the new area to be made visible
-     * @param bottom    the bottom offset of the new area to be made visible
+     *                   {@link android.view.View#FOCUS_DOWN} to downward
+     * @param top        the top offset of the new area to be made visible
+     * @param bottom     the bottom offset of the new area to be made visible
      * @return true if the key event is consumed by this method, false otherwise
      */
     private boolean scrollAndFocus(int directionY, int top, int bottom, int directionX, int left, int right)
diff --git a/app/src/main/res/values-de/strings.xml b/app/src/main/res/values-de/strings.xml
index 8e71e333..2c3ca95b 100644
--- a/app/src/main/res/values-de/strings.xml
+++ b/app/src/main/res/values-de/strings.xml
@@ -36,7 +36,7 @@
         <item>asset:/doc_de/three_d_plot_de.mmt</item>
         <item>asset:/doc_de/series_and_integrals_de.mmt</item>
         <item>asset:/doc_de/about_micromath_de.mmt</item>
-        <item>https://docs.google.com/viewer?url=https://github.com/mkulesh/microMathematics/raw/supplement/doc/microMathematics-v2.17.0-de.pdf</item>
+        <item>https://docs.google.com/viewer?url=https://github.com/mkulesh/microMathematics/raw/supplement/doc/microMathematics-v2.17.1-de.pdf</item>
     </string-array>
     <string name="activity_example">Beispiele</string>
     <string name="activity_welcome">asset:/doc_de/welcome_de.mmt</string>
diff --git a/app/src/main/res/values-pt-rBR/strings.xml b/app/src/main/res/values-pt-rBR/strings.xml
index ab351c0e..7d7c1573 100644
--- a/app/src/main/res/values-pt-rBR/strings.xml
+++ b/app/src/main/res/values-pt-rBR/strings.xml
@@ -36,7 +36,7 @@
         <item>asset:/doc_br/three_d_plot_br.mmt</item>
         <item>asset:/doc_br/series_and_integrals_br.mmt</item>
         <item>asset:/doc_br/about_micromath_br.mmt</item>
-        <item>https://docs.google.com/viewer?url=https://github.com/mkulesh/microMathematics/raw/supplement/doc/microMathematics-v2.17.0-br.pdf</item>
+        <item>https://docs.google.com/viewer?url=https://github.com/mkulesh/microMathematics/raw/supplement/doc/microMathematics-v2.17.1-br.pdf</item>
     </string-array>
     <string name="activity_example">Exemplo</string>
     <string name="activity_welcome">asset:/doc_br/welcome.mmt</string>
diff --git a/app/src/main/res/values-ru/strings.xml b/app/src/main/res/values-ru/strings.xml
index 2d596753..bd0ab4d0 100644
--- a/app/src/main/res/values-ru/strings.xml
+++ b/app/src/main/res/values-ru/strings.xml
@@ -36,7 +36,7 @@
         <item>asset:/doc_ru/three_d_plot_ru.mmt</item>
         <item>asset:/doc_ru/series_and_integrals_ru.mmt</item>
         <item>asset:/doc_ru/about_micromath_ru.mmt</item>
-        <item>https://docs.google.com/viewer?url=https://github.com/mkulesh/microMathematics/raw/supplement/doc/microMathematics-v2.17.0-ru.pdf</item>
+        <item>https://docs.google.com/viewer?url=https://github.com/mkulesh/microMathematics/raw/supplement/doc/microMathematics-v2.17.1-ru.pdf</item>
     </string-array>
     <string name="activity_example">Примеры</string>
     <string name="activity_welcome">asset:/doc_ru/welcome_ru.mmt</string>
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 0fc865bc..c1a5b3a2 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -36,7 +36,7 @@
         <item>asset:/doc_en/three_d_plot.mmt</item>
         <item>asset:/doc_en/series_and_integrals.mmt</item>
         <item>asset:/doc_en/about_micromath.mmt</item>
-        <item>https://docs.google.com/viewer?url=https://github.com/mkulesh/microMathematics/raw/supplement/doc/microMathematics-v2.17.0.pdf</item>
+        <item>https://docs.google.com/viewer?url=https://github.com/mkulesh/microMathematics/raw/supplement/doc/microMathematics-v2.17.1.pdf</item>
     </string-array>
     <string name="activity_example">Examples</string>
     <string name="activity_welcome">asset:/doc_en/welcome.mmt</string>
diff --git a/autobuild/push-apk.sh b/autobuild/push-apk.sh
index 08a4d6a6..ab0e1561 100644
--- a/autobuild/push-apk.sh
+++ b/autobuild/push-apk.sh
@@ -1,6 +1,6 @@
 #!/bin/sh
 
-APK_VERSION=2.17.0
+APK_VERSION=2.17.1
 
 echo "Generated APK"
 pwd; ls -l ./app/build/outputs/apk
diff --git a/autotest/create-avd.sh b/autotest/create-avd.sh
old mode 100755
new mode 100644
diff --git a/autotest/run-emulator.sh b/autotest/run-emulator.sh
old mode 100755
new mode 100644
diff --git a/autotest/run-session.sh b/autotest/run-session.sh
old mode 100755
new mode 100644
diff --git a/doc/function_plot.tex b/doc/function_plot.tex
index 05c16614..ef2738df 100644
--- a/doc/function_plot.tex
+++ b/doc/function_plot.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 This example demonstrates how to
diff --git a/doc/function_plot_br.tex b/doc/function_plot_br.tex
index 8b9432ff..95798df9 100644
--- a/doc/function_plot_br.tex
+++ b/doc/function_plot_br.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Este exemplo demonstra como preparar e
diff --git a/doc/function_plot_de.tex b/doc/function_plot_de.tex
index 0d24c9ac..42ee5388 100644
--- a/doc/function_plot_de.tex
+++ b/doc/function_plot_de.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Dieses Beispiel demonstriert, wie man
diff --git a/doc/function_plot_ru.tex b/doc/function_plot_ru.tex
index 9d7fae93..7d61f5f3 100644
--- a/doc/function_plot_ru.tex
+++ b/doc/function_plot_ru.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Данный пример демонстрирует
diff --git a/doc/how_to_use.tex b/doc/how_to_use.tex
index 2a3589ee..4ebde81f 100644
--- a/doc/how_to_use.tex
+++ b/doc/how_to_use.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 This app is a powerful calculation
diff --git a/doc/how_to_use_br.tex b/doc/how_to_use_br.tex
index 735a8efe..73c78b63 100644
--- a/doc/how_to_use_br.tex
+++ b/doc/how_to_use_br.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Este app é um poderoso programa
diff --git a/doc/how_to_use_de.tex b/doc/how_to_use_de.tex
index a7be997d..f5479edf 100644
--- a/doc/how_to_use_de.tex
+++ b/doc/how_to_use_de.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Diese App ist eine leistungsstarke
diff --git a/doc/how_to_use_ru.tex b/doc/how_to_use_ru.tex
index 4ca1598f..35cdffc7 100644
--- a/doc/how_to_use_ru.tex
+++ b/doc/how_to_use_ru.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Данное приложение является мощным
diff --git a/doc/partial-translation/values-fr/strings.xml b/doc/partial-translation/values-fr/strings.xml
index fb2e410a..56019c5b 100644
--- a/doc/partial-translation/values-fr/strings.xml
+++ b/doc/partial-translation/values-fr/strings.xml
@@ -53,7 +53,7 @@
         <item>asset:/doc_en/three_d_plot.mmt</item>
         <item>asset:/doc_en/series_and_integrals.mmt</item>
         <item>asset:/doc_en/about_micromath.mmt</item>
-        <item>https://github.com/mkulesh/microMathematics/blob/master/doc/download/v2.17.0/microMathematics-v2.17.0.pdf</item>
+        <item>https://github.com/mkulesh/microMathematics/blob/master/doc/download/v2.17.1/microMathematics-v2.17.1.pdf</item>
     </string-array>
     <string name="activity_welcome">asset:/doc_en/welcome.mmt</string>-->
 
diff --git a/doc/polar_plot.tex b/doc/polar_plot.tex
index 16e60ed9..0a80cfb9 100644
--- a/doc/polar_plot.tex
+++ b/doc/polar_plot.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Now we plot several functions given in
diff --git a/doc/polar_plot_br.tex b/doc/polar_plot_br.tex
index 640cacf3..c3c5bac9 100644
--- a/doc/polar_plot_br.tex
+++ b/doc/polar_plot_br.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Agora desenharemos várias funções dadas
diff --git a/doc/polar_plot_de.tex b/doc/polar_plot_de.tex
index d60433a3..feae995d 100644
--- a/doc/polar_plot_de.tex
+++ b/doc/polar_plot_de.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Jetzt zeichnen wir eine Funktion, die
diff --git a/doc/polar_plot_ru.tex b/doc/polar_plot_ru.tex
index 33fed568..ede02032 100644
--- a/doc/polar_plot_ru.tex
+++ b/doc/polar_plot_ru.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Сейчас мы построим несколько
diff --git a/doc/series_and_integrals.tex b/doc/series_and_integrals.tex
index 6906b3b7..88f8ad37 100644
--- a/doc/series_and_integrals.tex
+++ b/doc/series_and_integrals.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 This example demonstrates how to
diff --git a/doc/series_and_integrals_br.tex b/doc/series_and_integrals_br.tex
index 5b07b40d..37a70b65 100644
--- a/doc/series_and_integrals_br.tex
+++ b/doc/series_and_integrals_br.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Esse exemplo demonstra como calcular
diff --git a/doc/series_and_integrals_de.tex b/doc/series_and_integrals_de.tex
index 7261c3d0..976e37f5 100644
--- a/doc/series_and_integrals_de.tex
+++ b/doc/series_and_integrals_de.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Dieses Beispiel zeigt, wie Sie Reihen
diff --git a/doc/series_and_integrals_ru.tex b/doc/series_and_integrals_ru.tex
index 4d346c23..f783a959 100644
--- a/doc/series_and_integrals_ru.tex
+++ b/doc/series_and_integrals_ru.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Данный пример демонстрирует
diff --git a/doc/three_d_plot.tex b/doc/three_d_plot.tex
index a2a09620..1a6dfeef 100644
--- a/doc/three_d_plot.tex
+++ b/doc/three_d_plot.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 This example demonstrates 3D plots for
diff --git a/doc/three_d_plot_br.tex b/doc/three_d_plot_br.tex
index d0d01253..bdd6fa86 100644
--- a/doc/three_d_plot_br.tex
+++ b/doc/three_d_plot_br.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Este exemplo demonstra desenhos 3D para
diff --git a/doc/three_d_plot_de.tex b/doc/three_d_plot_de.tex
index 1cbd359c..6b603eef 100644
--- a/doc/three_d_plot_de.tex
+++ b/doc/three_d_plot_de.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Dieses Beispiel demonstriert 3D Plots
diff --git a/doc/three_d_plot_ru.tex b/doc/three_d_plot_ru.tex
index 6b076801..cefb6041 100644
--- a/doc/three_d_plot_ru.tex
+++ b/doc/three_d_plot_ru.tex
@@ -1,5 +1,5 @@
 % This is auto-generated file: do not edit!
-% Exported from microMathematics Plus, version 2.17.0
+% Exported from microMathematics Plus, version 2.17.1
 
 
 Данный пример демонстрирует
diff --git a/doc/versionCode.sty b/doc/versionCode.sty
index db633d6b..ec4306d7 100644
--- a/doc/versionCode.sty
+++ b/doc/versionCode.sty
@@ -1 +1 @@
-\def\versionCode{2.17.0}
+\def\versionCode{2.17.1}