diff --git a/build/build.cake b/build/build.cake
index 7a5769ed..7538862b 100644
--- a/build/build.cake
+++ b/build/build.cake
@@ -47,16 +47,24 @@ Task("Build")
     var settingsCore30 = new DotNetCoreBuildSettings
     {
         Framework = "netcoreapp3.0",
-        Configuration = "Release",
+        Configuration = "Release-Core30",
         OutputDirectory = "lib/netcoreapp3.0"
     };
 
+    var settingsCore31 = new DotNetCoreBuildSettings
+    {
+        Framework = "netcoreapp3.1",
+        Configuration = "Release-Core31",
+        OutputDirectory = "lib/netcoreapp3.1"
+    };
+
     MSBuild("../src/Net_40/HandyControl_Net_40/HandyControl_Net_40.csproj", settingsNet40);
     MSBuild("../src/Net_GE45/HandyControl_Net_GE45/HandyControl_Net_GE45.csproj", settingsNet45);
     MSBuild("../src/Net_GE45/HandyControl_Net_GE45/HandyControl_Net_GE45.csproj", settingsNet462);
     MSBuild("../src/Net_GE45/HandyControl_Net_GE45/HandyControl_Net_GE45.csproj", settingsNet47);
     MSBuild("../src/Net_GE45/HandyControl_Net_GE45/HandyControl_Net_GE45.csproj", settingsNet48);
-    DotNetCoreBuild("../src/Core_30/HandyControl_Core_30/HandyControl_Core_30.csproj", settingsCore30);
+    DotNetCoreBuild("../src/Core_GE30/HandyControl_Core_GE30/HandyControl_Core_GE30.csproj", settingsCore30);
+    DotNetCoreBuild("../src/Core_GE30/HandyControl_Core_GE30/HandyControl_Core_GE30.csproj", settingsCore31);
 });
 
 RunTarget(target);
\ No newline at end of file
diff --git a/src/Core_GE30/HandyControlDemo_Core_GE30/HandyControlDemo_Core_GE30.csproj b/src/Core_GE30/HandyControlDemo_Core_GE30/HandyControlDemo_Core_GE30.csproj
index a0190ab7..75007053 100644
--- a/src/Core_GE30/HandyControlDemo_Core_GE30/HandyControlDemo_Core_GE30.csproj
+++ b/src/Core_GE30/HandyControlDemo_Core_GE30/HandyControlDemo_Core_GE30.csproj
@@ -1,7 +1,6 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
     <UseWPF>true</UseWPF>
     <AssemblyName>HandyControlDemo</AssemblyName>
     <RootNamespace>HandyControlDemo</RootNamespace>
@@ -9,13 +8,14 @@
     <ApplicationIcon>..\..\Shared\HandyControlDemo_Shared\Resources\Img\icon.ico</ApplicationIcon>
     <Configurations>Debug-Core30;Debug-Core31;Release-Core30;Release-Core31</Configurations>
     <Copyright>Copyright © HandyOrg 2018-2020</Copyright>
-    <FileVersion>2.5.0.0</FileVersion>
-    <AssemblyVersion>2.5.0.0</AssemblyVersion>
+    <FileVersion>2.5.0</FileVersion>
+    <AssemblyVersion>2.5.0</AssemblyVersion>
     <LangVersion>8.0</LangVersion>
     <Authors>HandyOrg</Authors>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug-Core30|AnyCPU'">
     <DefineConstants>TRACE;Core</DefineConstants>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug-Core31|AnyCPU'">
     <DefineConstants>TRACE;Core</DefineConstants>
@@ -23,6 +23,7 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release-Core30|AnyCPU'">
     <DefineConstants>TRACE;Core</DefineConstants>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release-Core31|AnyCPU'">
     <DefineConstants>TRACE;Core</DefineConstants>
diff --git a/src/Core_GE30/HandyControl_Core_GE30/HandyControl_Core_GE30.csproj b/src/Core_GE30/HandyControl_Core_GE30/HandyControl_Core_GE30.csproj
index 8c6fbf38..149c7f6b 100644
--- a/src/Core_GE30/HandyControl_Core_GE30/HandyControl_Core_GE30.csproj
+++ b/src/Core_GE30/HandyControl_Core_GE30/HandyControl_Core_GE30.csproj
@@ -1,11 +1,10 @@
 <Project Sdk="Microsoft.NET.Sdk.WindowsDesktop">
   <PropertyGroup>
-    <TargetFramework>netcoreapp3.0</TargetFramework>
     <UseWPF>true</UseWPF>
     <AssemblyName>HandyControl</AssemblyName>
     <RootNamespace>HandyControl</RootNamespace>
     <Version>2.5.0</Version>
-    <AssemblyVersion>2.5.0.0</AssemblyVersion>
+    <AssemblyVersion>2.5.0</AssemblyVersion>
     <GeneratePackageOnBuild>false</GeneratePackageOnBuild>
     <PackageRequireLicenseAcceptance>false</PackageRequireLicenseAcceptance>
     <Copyright>Copyright © HandyOrg 2018-2020</Copyright>
@@ -16,6 +15,7 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug-Core30|AnyCPU'">
     <DefineConstants>TRACE;Core</DefineConstants>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug-Core31|AnyCPU'">
     <DefineConstants>TRACE;Core</DefineConstants>
@@ -23,6 +23,7 @@
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release-Core30|AnyCPU'">
     <DefineConstants>TRACE;Core</DefineConstants>
+    <TargetFramework>netcoreapp3.0</TargetFramework>
     <DocumentationFile>C:\Code\GitHub\HandyControl\src\Core_GE30\HandyControl_Core_GE30\HandyControl.xml</DocumentationFile>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release-Core31|AnyCPU'">
@@ -56,8 +57,8 @@
       <Generator>PublicResXFileCodeGenerator</Generator>
       <LastGenOutput>Lang.Designer.cs</LastGenOutput>
     </EmbeddedResource>
-    <Compile Include="..\..\Shared\HandyControl_Shared\Properties\AssemblyInfo.cs">
-      <Link>Properties\AssemblyInfo.cs</Link>
+    <Compile Include="..\..\Shared\HandyControl_Shared\Properties\CoreAssemblyInfo.cs">
+      <Link>Properties\CoreAssemblyInfo.cs</Link>
     </Compile>
   </ItemGroup>
   <Import Project="..\..\Shared\HandyControl_Shared\HandyControl_Shared.projitems" Label="Shared" />
diff --git a/src/Net_40/HandyControl_Net_40/HandyControl_Net_40.csproj b/src/Net_40/HandyControl_Net_40/HandyControl_Net_40.csproj
index c593ae8c..992a379c 100644
--- a/src/Net_40/HandyControl_Net_40/HandyControl_Net_40.csproj
+++ b/src/Net_40/HandyControl_Net_40/HandyControl_Net_40.csproj
@@ -37,8 +37,8 @@
     <LangVersion>8.0</LangVersion>
   </PropertyGroup>
   <ItemGroup>
-    <Compile Include="..\..\Shared\HandyControl_Shared\Properties\AssemblyInfo.cs">
-      <Link>Properties\AssemblyInfo.cs</Link>
+    <Compile Include="..\..\Shared\HandyControl_Shared\Properties\NetAssemblyInfo.cs">
+      <Link>Properties\NetAssemblyInfo.cs</Link>
     </Compile>
     <Compile Include="..\..\Shared\HandyControl_Shared\Properties\Langs\Lang.Designer.cs">
       <Link>Properties\Langs\Lang.Designer.cs</Link>
diff --git a/src/Net_GE45/HandyControl_Net_GE45/HandyControl_Net_GE45.csproj b/src/Net_GE45/HandyControl_Net_GE45/HandyControl_Net_GE45.csproj
index 9e873597..676b9be5 100644
--- a/src/Net_GE45/HandyControl_Net_GE45/HandyControl_Net_GE45.csproj
+++ b/src/Net_GE45/HandyControl_Net_GE45/HandyControl_Net_GE45.csproj
@@ -112,8 +112,8 @@
     <LangVersion>8.0</LangVersion>
   </PropertyGroup>
   <ItemGroup>
-    <Compile Include="..\..\Shared\HandyControl_Shared\Properties\AssemblyInfo.cs">
-      <Link>Properties\AssemblyInfo.cs</Link>
+    <Compile Include="..\..\Shared\HandyControl_Shared\Properties\NetAssemblyInfo.cs">
+      <Link>Properties\NetAssemblyInfo.cs</Link>
     </Compile>
     <Compile Include="..\..\Shared\HandyControl_Shared\Properties\Langs\Lang.Designer.cs">
       <Link>Properties\Langs\Lang.Designer.cs</Link>
diff --git a/src/Shared/HandyControl_Shared/Properties/CoreAssemblyInfo.cs b/src/Shared/HandyControl_Shared/Properties/CoreAssemblyInfo.cs
new file mode 100644
index 00000000..396c40a5
--- /dev/null
+++ b/src/Shared/HandyControl_Shared/Properties/CoreAssemblyInfo.cs
@@ -0,0 +1,13 @@
+using System.Windows.Markup;
+
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Controls")]
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Tools")]
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Tools.Converter")]
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Interactivity")]
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Expression.Shapes")]
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Expression.Media")]
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Media.Animation")]
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Media.Effects")]
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Data")]
+[assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Properties.Langs")]
+[assembly: XmlnsPrefix("https://handyorg.github.io/handycontrol", "hc")]
\ No newline at end of file
diff --git a/src/Shared/HandyControl_Shared/Properties/AssemblyInfo.cs b/src/Shared/HandyControl_Shared/Properties/NetAssemblyInfo.cs
similarity index 98%
rename from src/Shared/HandyControl_Shared/Properties/AssemblyInfo.cs
rename to src/Shared/HandyControl_Shared/Properties/NetAssemblyInfo.cs
index 09620b78..ed816c73 100644
--- a/src/Shared/HandyControl_Shared/Properties/AssemblyInfo.cs
+++ b/src/Shared/HandyControl_Shared/Properties/NetAssemblyInfo.cs
@@ -1,5 +1,4 @@
 using System.Windows.Markup;
-#if !Core
 using System.Reflection;
 using System.Runtime.InteropServices;
 
@@ -13,7 +12,6 @@ using System.Runtime.InteropServices;
 [assembly: AssemblyCulture("")]
 [assembly: ComVisible(false)]
 [assembly: AssemblyVersion("2.5.0")]
-#endif
 
 [assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Controls")]
 [assembly: XmlnsDefinition("https://handyorg.github.io/handycontrol", "HandyControl.Tools")]