diff --git a/Deploy/local_build.ps1 b/Deploy/local_build.ps1
new file mode 100644
index 0000000000..9dd7582b19
--- /dev/null
+++ b/Deploy/local_build.ps1
@@ -0,0 +1,4 @@
+New-Alias nuget.exe ".\packages\NuGet.CommandLine.*\tools\NuGet.exe"
+$env:APPVEYOR_BUILD_FOLDER = Convert-Path .
+$env:APPVEYOR_BUILD_VERSION = "1.2.0"
+& .\Deploy\squirrel_installer.ps1
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Calculator/Languages/de.xaml b/Plugins/Wox.Plugin.Calculator/Languages/de.xaml
index 02c51e8c78..286e4bc9b3 100644
--- a/Plugins/Wox.Plugin.Calculator/Languages/de.xaml
+++ b/Plugins/Wox.Plugin.Calculator/Languages/de.xaml
@@ -4,5 +4,7 @@
 
     <system:String x:Key="wox_plugin_caculator_plugin_name">Rechner</system:String>
     <system:String x:Key="wox_plugin_caculator_plugin_description">Stellt mathematische Berechnungen bereit.(Versuche 5*3-2 in Wox)</system:String>
-    
+    <system:String x:Key="wox_plugin_calculator_not_a_number">Keine Zahl (NaN)</system:String>
+    <system:String x:Key="wox_plugin_calculator_expression_not_complete">Ausdruck falsch oder nicht vollständig (Klammern vergessen?)</system:String>
+    <system:String x:Key="wox_plugin_calculator_copy_number_to_clipboard">Diese Zahl in die Zwischenablage kopieren</system:String>
 </ResourceDictionary>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Calculator/Languages/en.xaml b/Plugins/Wox.Plugin.Calculator/Languages/en.xaml
index 833a0c14bb..3b5fa32b33 100644
--- a/Plugins/Wox.Plugin.Calculator/Languages/en.xaml
+++ b/Plugins/Wox.Plugin.Calculator/Languages/en.xaml
@@ -4,5 +4,7 @@
 
     <system:String x:Key="wox_plugin_caculator_plugin_name">Calculator</system:String>
     <system:String x:Key="wox_plugin_caculator_plugin_description">Allows to do mathematical calculations.(Try 5*3-2 in Wox)</system:String>
-    
+    <system:String x:Key="wox_plugin_calculator_not_a_number">Not a number (NaN)</system:String>
+    <system:String x:Key="wox_plugin_calculator_expression_not_complete">Expression wrong or incomplete (Did you forget some parentheses?)</system:String>
+    <system:String x:Key="wox_plugin_calculator_copy_number_to_clipboard">Copy this number to the clipboard</system:String>
 </ResourceDictionary>
\ No newline at end of file
diff --git a/Plugins/Wox.Plugin.Calculator/Main.cs b/Plugins/Wox.Plugin.Calculator/Main.cs
index 9e7036e650..fab0b8e030 100644
--- a/Plugins/Wox.Plugin.Calculator/Main.cs
+++ b/Plugins/Wox.Plugin.Calculator/Main.cs
@@ -2,13 +2,13 @@
 using System.Runtime.InteropServices;
 using System.Text.RegularExpressions;
 using System.Windows;
-using YAMP;
+using Mages.Core;
 
 namespace Wox.Plugin.Caculator
 {
     public class Main : IPlugin, IPluginI18n
     {
-        private static Regex regValidExpressChar = new Regex(
+        private static readonly Regex RegValidExpressChar = new Regex(
                         @"^(" +
                         @"ceil|floor|exp|pi|e|max|min|det|abs|log|ln|sqrt|" +
                         @"sin|cos|tan|arcsin|arccos|arctan|" +
@@ -17,60 +17,70 @@ namespace Wox.Plugin.Caculator
                         @"==|~=|&&|\|\||" +
                         @"[ei]|[0-9]|[\+\-\*\/\^\., ""]|[\(\)\|\!\[\]]" +
                         @")+$", RegexOptions.Compiled);
-        private static Regex regBrackets = new Regex(@"[\(\)\[\]]", RegexOptions.Compiled);
-        private static ParseContext yampContext;
-        private PluginInitContext context { get; set; }
+        private static readonly Regex RegBrackets = new Regex(@"[\(\)\[\]]", RegexOptions.Compiled);
+        private static readonly Engine MagesEngine;
+        private PluginInitContext Context { get; set; }
 
         static Main()
         {
-            yampContext = Parser.PrimaryContext;
-            Parser.InteractiveMode = false;
-            Parser.UseScripting = false;
+            MagesEngine = new Engine();
         }
 
         public List<Result> Query(Query query)
         {
             if (query.Search.Length <= 2          // don't affect when user only input "e" or "i" keyword
-                || !regValidExpressChar.IsMatch(query.Search)
+                || !RegValidExpressChar.IsMatch(query.Search)
                 || !IsBracketComplete(query.Search)) return new List<Result>();
 
             try
             {
-                var result = yampContext.Run(query.Search);
-                if (result.Output != null && !string.IsNullOrEmpty(result.Result))
+                var result = MagesEngine.Interpret(query.Search);
+
+                if (result.ToString() == "NaN")
+                    result = Context.API.GetTranslation("wox_plugin_calculator_not_a_number");
+
+                if (result is Function)
+                    result = Context.API.GetTranslation("wox_plugin_calculator_expression_not_complete");
+
+
+                if (!string.IsNullOrEmpty(result?.ToString()))
                 {
                     return new List<Result>
-                    { new Result
-                    { 
-                        Title = result.Result, 
-                        IcoPath = "Images/calculator.png", 
-                        Score = 300,
-                        SubTitle = "Copy this number to the clipboard", 
-                        Action = c =>
+                    {
+                        new Result
                         {
-                            try
+                            Title = result.ToString(),
+                            IcoPath = "Images/calculator.png",
+                            Score = 300,
+                            SubTitle = Context.API.GetTranslation("wox_plugin_calculator_copy_number_to_clipboard"),
+                            Action = c =>
                             {
-                                Clipboard.SetText(result.Result);
-                                return true;
+                                try
+                                {
+                                    Clipboard.SetText(result.ToString());
+                                    return true;
+                                }
+                                catch (ExternalException)
+                                {
+                                    MessageBox.Show("Copy failed, please try later");
+                                    return false;
+                                }
                             }
-                            catch (ExternalException e)
-                            {
-                                MessageBox.Show("Copy failed, please try later");
-                                return false;
-                            }
-                        }
-                    } };
+                        } 
+                    };
                 }
             }
             catch
-            {}
+            {
+                // ignored
+            }
 
             return new List<Result>();
         }
 
         private bool IsBracketComplete(string query)
         {
-            var matchs = regBrackets.Matches(query);
+            var matchs = RegBrackets.Matches(query);
             var leftBracketCount = 0;
             foreach (Match match in matchs)
             {
@@ -89,17 +99,17 @@ namespace Wox.Plugin.Caculator
 
         public void Init(PluginInitContext context)
         {
-            this.context = context;
+            Context = context;
         }
 
         public string GetTranslatedPluginTitle()
         {
-            return context.API.GetTranslation("wox_plugin_caculator_plugin_name");
+            return Context.API.GetTranslation("wox_plugin_caculator_plugin_name");
         }
 
         public string GetTranslatedPluginDescription()
         {
-            return context.API.GetTranslation("wox_plugin_caculator_plugin_description");
+            return Context.API.GetTranslation("wox_plugin_caculator_plugin_description");
         }
     }
 }
diff --git a/Plugins/Wox.Plugin.Calculator/NumberTranslator.cs b/Plugins/Wox.Plugin.Calculator/NumberTranslator.cs
new file mode 100644
index 0000000000..448301d4fb
--- /dev/null
+++ b/Plugins/Wox.Plugin.Calculator/NumberTranslator.cs
@@ -0,0 +1,95 @@
+using System;
+using System.Collections.Generic;
+using System.Globalization;
+using System.Linq;
+using System.Text;
+using System.Text.RegularExpressions;
+using System.Threading.Tasks;
+
+namespace Wox.Plugin.Caculator
+{
+    /// <summary>
+    /// Tries to convert all numbers in a text from one culture format to another.
+    /// </summary>
+    public class NumberTranslator
+    {
+        private readonly CultureInfo sourceCulture;
+        private readonly CultureInfo targetCulture;
+        private readonly Regex splitRegexForSource;
+        private readonly Regex splitRegexForTarget;
+
+        private NumberTranslator(CultureInfo sourceCulture, CultureInfo targetCulture)
+        {
+            this.sourceCulture = sourceCulture;
+            this.targetCulture = targetCulture;
+
+            this.splitRegexForSource = GetSplitRegex(this.sourceCulture);
+            this.splitRegexForTarget = GetSplitRegex(this.targetCulture);
+        }
+
+        /// <summary>
+        /// Create a new <see cref="NumberTranslator"/> - returns null if no number conversion
+        /// is required between the cultures.
+        /// </summary>
+        /// <param name="sourceCulture">source culture</param>
+        /// <param name="targetCulture">target culture</param>
+        /// <returns></returns>
+        public static NumberTranslator Create(CultureInfo sourceCulture, CultureInfo targetCulture)
+        {
+            bool conversionRequired = sourceCulture.NumberFormat.NumberDecimalSeparator != targetCulture.NumberFormat.NumberDecimalSeparator
+                                      || sourceCulture.NumberFormat.PercentGroupSeparator != targetCulture.NumberFormat.PercentGroupSeparator
+                                      || sourceCulture.NumberFormat.NumberGroupSizes != targetCulture.NumberFormat.NumberGroupSizes;
+            return conversionRequired
+                ? new NumberTranslator(sourceCulture, targetCulture)
+                : null;
+        }
+
+        /// <summary>
+        /// Translate from source to target culture.
+        /// </summary>
+        /// <param name="input"></param>
+        /// <returns></returns>
+        public string Translate(string input)
+        {
+            return this.Translate(input, this.sourceCulture, this.targetCulture, this.splitRegexForSource);
+        }
+        
+        /// <summary>
+        /// Translate from target to source culture.
+        /// </summary>
+        /// <param name="input"></param>
+        /// <returns></returns>
+        public string TranslateBack(string input)
+        {
+            return this.Translate(input, this.targetCulture, this.sourceCulture, this.splitRegexForTarget);
+        }
+
+        private string Translate(string input, CultureInfo cultureFrom, CultureInfo cultureTo, Regex splitRegex)
+        {
+            var outputBuilder = new StringBuilder();
+
+            string[] tokens = splitRegex.Split(input);
+            foreach (string token in tokens)
+            {
+                decimal number;
+                outputBuilder.Append(
+                    decimal.TryParse(token, NumberStyles.Number, cultureFrom, out number)
+                    ? number.ToString(cultureTo)
+                    : token);
+            }
+
+            return outputBuilder.ToString();
+        }
+
+        private Regex GetSplitRegex(CultureInfo culture)
+        {
+            var splitPattern = $"((?:\\d|{Regex.Escape(culture.NumberFormat.NumberDecimalSeparator)}";
+            if (!string.IsNullOrEmpty(culture.NumberFormat.NumberGroupSeparator))
+            {
+                splitPattern += $"|{Regex.Escape(culture.NumberFormat.NumberGroupSeparator)}";
+            }
+            splitPattern += ")+)";
+            return new Regex(splitPattern);
+        }
+    }
+}
diff --git a/Plugins/Wox.Plugin.Calculator/Wox.Plugin.Calculator.csproj b/Plugins/Wox.Plugin.Calculator/Wox.Plugin.Calculator.csproj
index 7d9aefe604..8fd3169a84 100644
--- a/Plugins/Wox.Plugin.Calculator/Wox.Plugin.Calculator.csproj
+++ b/Plugins/Wox.Plugin.Calculator/Wox.Plugin.Calculator.csproj
@@ -38,19 +38,20 @@
       <HintPath>..\..\packages\JetBrains.Annotations.10.3.0\lib\net\JetBrains.Annotations.dll</HintPath>
       <Private>True</Private>
     </Reference>
+    <Reference Include="Mages.Core, Version=1.5.0.0, Culture=neutral, processorArchitecture=MSIL">
+      <HintPath>..\..\packages\Mages.1.5.0\lib\net35\Mages.Core.dll</HintPath>
+      <Private>True</Private>
+    </Reference>
     <Reference Include="PresentationCore" />
     <Reference Include="PresentationFramework" />
     <Reference Include="System" />
     <Reference Include="System.Core" />
-    <Reference Include="YAMP, Version=1.4.0.22422, Culture=neutral, processorArchitecture=MSIL">
-      <HintPath>..\..\packages\YAMP.1.4.0\lib\net35\YAMP.dll</HintPath>
-      <Private>True</Private>
-    </Reference>
   </ItemGroup>
   <ItemGroup>
     <Compile Include="..\..\SolutionAssemblyInfo.cs">
       <Link>Properties\SolutionAssemblyInfo.cs</Link>
     </Compile>
+    <Compile Include="NumberTranslator.cs" />
     <Compile Include="Main.cs" />
     <Compile Include="Properties\AssemblyInfo.cs" />
   </ItemGroup>
diff --git a/Plugins/Wox.Plugin.Calculator/packages.config b/Plugins/Wox.Plugin.Calculator/packages.config
index d1fce409f5..c17f6726fd 100644
--- a/Plugins/Wox.Plugin.Calculator/packages.config
+++ b/Plugins/Wox.Plugin.Calculator/packages.config
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="utf-8"?>
 <packages>
   <package id="JetBrains.Annotations" version="10.3.0" targetFramework="net452" />
+  <package id="Mages" version="1.5.0" targetFramework="net452" />
   <package id="System.Runtime" version="4.0.0" targetFramework="net452" />
-  <package id="YAMP" version="1.4.0" targetFramework="net452" />
 </packages>
\ No newline at end of file
diff --git a/Wox.Core/Updater.cs b/Wox.Core/Updater.cs
index c71479bd54..050ccceb81 100644
--- a/Wox.Core/Updater.cs
+++ b/Wox.Core/Updater.cs
@@ -108,5 +108,13 @@ namespace Wox.Core
 
             return manager;
         }
+
+        public static string NewVersinoTips(string version)
+        {
+            var translater = InternationalizationManager.Instance;
+            var tips = string.Format(translater.GetTranslation("newVersionTips"), version);
+            return tips;
+        }
+
     }
 }
\ No newline at end of file
diff --git a/Wox/ActionKeywords.xaml.cs b/Wox/ActionKeywords.xaml.cs
index 2dc0e02bd1..c86671c6ef 100644
--- a/Wox/ActionKeywords.xaml.cs
+++ b/Wox/ActionKeywords.xaml.cs
@@ -40,6 +40,7 @@ namespace Wox
         {
             var oldActionKeyword = _plugin.Metadata.ActionKeywords[0];
             var newActionKeyword = tbAction.Text.Trim();
+            newActionKeyword = newActionKeyword.Length > 0 ? newActionKeyword : "*";
             if (!PluginManager.ActionKeywordRegistered(newActionKeyword))
             {
                 var id = _plugin.Metadata.ID;
diff --git a/Wox/App.xaml.cs b/Wox/App.xaml.cs
index f5c7627da5..3407cf5762 100644
--- a/Wox/App.xaml.cs
+++ b/Wox/App.xaml.cs
@@ -96,7 +96,7 @@ namespace Wox
             }
         }
 
-        [Conditional("RELEASE")]
+        //[Conditional("RELEASE")]
         private void AutoUpdates()
         {
             Task.Run(async () =>