- upgrade to net8.0

test/Vit.Linq.Console/Vit.Linq.Console.csproj

@@ -2,7 +2,7 @@
 
     <PropertyGroup>
         <OutputType>Exe</OutputType>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <Nullable>enable</Nullable>
     </PropertyGroup>

test/Vit.Linq.ExpressionNodes.MsTest/Vit.Linq.ExpressionNodes.MsTest.csproj

@@ -5,19 +5,19 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <ImplicitUsings>enable</ImplicitUsings>
         <IsPackable>false</IsPackable>
         <IsTestProject>true</IsTestProject>
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
-        <PackageReference Include="MSTest.TestAdapter" Version="3.6.1" />
-        <PackageReference Include="MSTest.TestFramework" Version="3.6.1" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
+        <PackageReference Include="MSTest.TestAdapter" Version="3.6.4" />
+        <PackageReference Include="MSTest.TestFramework" Version="3.6.4" />
 
         <PackageReference Include="Vit.Core" Version="2.3.0" />
-        <PackageReference Include="Sers.Core" Version="2.2.0" />
+        <PackageReference Include="Sers.Core" Version="2.2.1" />
     </ItemGroup>
 
     <ItemGroup>

test/Vit.Linq.MsTest/Vit.Linq.MsTest.csproj

@@ -5,18 +5,18 @@
     </PropertyGroup>
 
     <PropertyGroup>
-        <TargetFramework>net6.0</TargetFramework>
+        <TargetFramework>net8.0</TargetFramework>
         <IsPackable>false</IsPackable>
         <IsTestProject>true</IsTestProject>
     </PropertyGroup>
 
     <ItemGroup>
-        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.11.1" />
-        <PackageReference Include="MSTest.TestAdapter" Version="3.6.1" />
-        <PackageReference Include="MSTest.TestFramework" Version="3.6.1" />
+        <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.12.0" />
+        <PackageReference Include="MSTest.TestAdapter" Version="3.6.4" />
+        <PackageReference Include="MSTest.TestFramework" Version="3.6.4" />
 
         <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
-        <PackageReference Include="System.Text.Json" Version="8.0.5" />
+        <PackageReference Include="System.Text.Json" Version="9.0.0" />
 
         <PackageReference Include="Vit.Core" Version="2.3.0" />
     </ItemGroup>