diff --git a/.github/actions/dotnet-test-build/action.yml b/.github/actions/dotnet-test-build/action.yml
index 0a448fa4..50015428 100644
--- a/.github/actions/dotnet-test-build/action.yml
+++ b/.github/actions/dotnet-test-build/action.yml
@@ -9,7 +9,6 @@ runs:
     with:
       dotnet-quality: ga
       dotnet-version: |
-        3.1
         6.0
         7.0
 
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index ff662841..9dead929 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -91,9 +91,7 @@ jobs:
     - uses: actions/setup-dotnet@v3
       with:
         dotnet-quality: ga
-        dotnet-version: |
-          3.1
-          6.0
+        dotnet-version: 6.0
 
     - uses: actions/checkout@v3
 
diff --git a/net/DevExtreme.AspNet.Data.Tests.Common/DevExtreme.AspNet.Data.Tests.Common.csproj b/net/DevExtreme.AspNet.Data.Tests.Common/DevExtreme.AspNet.Data.Tests.Common.csproj
index 9f3ca2c1..345163de 100644
--- a/net/DevExtreme.AspNet.Data.Tests.Common/DevExtreme.AspNet.Data.Tests.Common.csproj
+++ b/net/DevExtreme.AspNet.Data.Tests.Common/DevExtreme.AspNet.Data.Tests.Common.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>netstandard2.0</TargetFramework>
+    <TargetFrameworks>net452;net6.0</TargetFrameworks>
     <RootNamespace>DevExtreme.AspNet.Data.Tests</RootNamespace>
     <IsTestProject>False</IsTestProject>
   </PropertyGroup>
diff --git a/net/DevExtreme.AspNet.Data.Tests.EFCore1/DevExtreme.AspNet.Data.Tests.EFCore1.csproj b/net/DevExtreme.AspNet.Data.Tests.EFCore1/DevExtreme.AspNet.Data.Tests.EFCore1.csproj
deleted file mode 100644
index e4718a96..00000000
--- a/net/DevExtreme.AspNet.Data.Tests.EFCore1/DevExtreme.AspNet.Data.Tests.EFCore1.csproj
+++ /dev/null
@@ -1,26 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
-    <DefineConstants>EFCORE1</DefineConstants>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="1.1.6" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.InMemory" Version="1.1.6" />
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="1.1.6" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.1" />
-    <PackageReference Include="xunit" Version="2.4.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\DevExtreme.AspNet.Data\DevExtreme.AspNet.Data.csproj" />
-    <ProjectReference Include="..\DevExtreme.AspNet.Data.Tests.Common\DevExtreme.AspNet.Data.Tests.Common.csproj" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <Compile Include="..\DevExtreme.AspNet.Data.Tests.EFCore\**\*.cs" />
-  </ItemGroup>
-
-</Project>
diff --git a/net/DevExtreme.AspNet.Data.Tests.EFCore2/DevExtreme.AspNet.Data.Tests.EFCore2.csproj b/net/DevExtreme.AspNet.Data.Tests.EFCore2/DevExtreme.AspNet.Data.Tests.EFCore2.csproj
deleted file mode 100644
index 78204059..00000000
--- a/net/DevExtreme.AspNet.Data.Tests.EFCore2/DevExtreme.AspNet.Data.Tests.EFCore2.csproj
+++ /dev/null
@@ -1,24 +0,0 @@
-<Project Sdk="Microsoft.NET.Sdk">
-
-  <PropertyGroup>
-    <TargetFramework>netcoreapp3.1</TargetFramework>
-    <DefineConstants>EFCORE2</DefineConstants>
-  </PropertyGroup>
-
-  <ItemGroup>
-    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="2.2.6" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.4.1" />
-    <PackageReference Include="xunit" Version="2.4.2" />
-    <PackageReference Include="xunit.runner.visualstudio" Version="2.4.5" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <ProjectReference Include="..\DevExtreme.AspNet.Data\DevExtreme.AspNet.Data.csproj" />
-    <ProjectReference Include="..\DevExtreme.AspNet.Data.Tests.Common\DevExtreme.AspNet.Data.Tests.Common.csproj" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <Compile Include="..\DevExtreme.AspNet.Data.Tests.EFCore\**\*.cs" />
-  </ItemGroup>
-
-</Project>
diff --git a/net/DevExtreme.AspNet.Data.Tests.EFCore3/DevExtreme.AspNet.Data.Tests.EFCore3.csproj b/net/DevExtreme.AspNet.Data.Tests.EFCore3/DevExtreme.AspNet.Data.Tests.EFCore3.csproj
index 7fdae812..7dcde552 100644
--- a/net/DevExtreme.AspNet.Data.Tests.EFCore3/DevExtreme.AspNet.Data.Tests.EFCore3.csproj
+++ b/net/DevExtreme.AspNet.Data.Tests.EFCore3/DevExtreme.AspNet.Data.Tests.EFCore3.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <DefineConstants>EFCORE3</DefineConstants>
   </PropertyGroup>
 
diff --git a/net/DevExtreme.AspNet.Data.Tests.EFCore5/DevExtreme.AspNet.Data.Tests.EFCore5.csproj b/net/DevExtreme.AspNet.Data.Tests.EFCore5/DevExtreme.AspNet.Data.Tests.EFCore5.csproj
index 8b261151..ff2f29ee 100644
--- a/net/DevExtreme.AspNet.Data.Tests.EFCore5/DevExtreme.AspNet.Data.Tests.EFCore5.csproj
+++ b/net/DevExtreme.AspNet.Data.Tests.EFCore5/DevExtreme.AspNet.Data.Tests.EFCore5.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <DefineConstants>EFCORE5</DefineConstants>
   </PropertyGroup>
 
diff --git a/net/DevExtreme.AspNet.Data.Tests.EFCore6/DevExtreme.AspNet.Data.Tests.EFCore6.csproj b/net/DevExtreme.AspNet.Data.Tests.EFCore6/DevExtreme.AspNet.Data.Tests.EFCore6.csproj
index 7409f68d..1e22478c 100644
--- a/net/DevExtreme.AspNet.Data.Tests.EFCore6/DevExtreme.AspNet.Data.Tests.EFCore6.csproj
+++ b/net/DevExtreme.AspNet.Data.Tests.EFCore6/DevExtreme.AspNet.Data.Tests.EFCore6.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <DefineConstants>EFCORE6</DefineConstants>
   </PropertyGroup>
 
diff --git a/net/DevExtreme.AspNet.Data.Tests.EFCore7/DevExtreme.AspNet.Data.Tests.EFCore7.csproj b/net/DevExtreme.AspNet.Data.Tests.EFCore7/DevExtreme.AspNet.Data.Tests.EFCore7.csproj
index ca6f8d12..535db241 100644
--- a/net/DevExtreme.AspNet.Data.Tests.EFCore7/DevExtreme.AspNet.Data.Tests.EFCore7.csproj
+++ b/net/DevExtreme.AspNet.Data.Tests.EFCore7/DevExtreme.AspNet.Data.Tests.EFCore7.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net7</TargetFramework>
+    <TargetFramework>net7.0</TargetFramework>
     <DefineConstants>EFCORE7</DefineConstants>
   </PropertyGroup>
 
diff --git a/net/DevExtreme.AspNet.Data.Tests.NH/DevExtreme.AspNet.Data.Tests.NH.csproj b/net/DevExtreme.AspNet.Data.Tests.NH/DevExtreme.AspNet.Data.Tests.NH.csproj
index 6fa549f9..228d07b4 100644
--- a/net/DevExtreme.AspNet.Data.Tests.NH/DevExtreme.AspNet.Data.Tests.NH.csproj
+++ b/net/DevExtreme.AspNet.Data.Tests.NH/DevExtreme.AspNet.Data.Tests.NH.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/net/DevExtreme.AspNet.Data.Tests.Xpo/DevExtreme.AspNet.Data.Tests.Xpo.csproj b/net/DevExtreme.AspNet.Data.Tests.Xpo/DevExtreme.AspNet.Data.Tests.Xpo.csproj
index 9d10d6a9..904fec4e 100644
--- a/net/DevExtreme.AspNet.Data.Tests.Xpo/DevExtreme.AspNet.Data.Tests.Xpo.csproj
+++ b/net/DevExtreme.AspNet.Data.Tests.Xpo/DevExtreme.AspNet.Data.Tests.Xpo.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFramework>net6</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/net/DevExtreme.AspNet.Data.Tests/DevExtreme.AspNet.Data.Tests.csproj b/net/DevExtreme.AspNet.Data.Tests/DevExtreme.AspNet.Data.Tests.csproj
index 9f24dd31..73074112 100644
--- a/net/DevExtreme.AspNet.Data.Tests/DevExtreme.AspNet.Data.Tests.csproj
+++ b/net/DevExtreme.AspNet.Data.Tests/DevExtreme.AspNet.Data.Tests.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net6</TargetFrameworks>
+    <TargetFrameworks>net6.0</TargetFrameworks>
   </PropertyGroup>
 
   <ItemGroup>
diff --git a/net/DevExtreme.AspNet.Data.sln b/net/DevExtreme.AspNet.Data.sln
index 9a328217..f2613a11 100644
--- a/net/DevExtreme.AspNet.Data.sln
+++ b/net/DevExtreme.AspNet.Data.sln
@@ -16,21 +16,17 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevExtreme.AspNet.Data.Test
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Sample", "Sample\Sample.csproj", "{760B3927-BB40-4D5B-B64C-880E75E4A4A5}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DevExtreme.AspNet.Data.Tests.NET4", "DevExtreme.AspNet.Data.Tests.NET4\DevExtreme.AspNet.Data.Tests.NET4.csproj", "{D083C7D4-E8EC-409F-8B45-512FABB21A54}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevExtreme.AspNet.Data.Tests.NET4", "DevExtreme.AspNet.Data.Tests.NET4\DevExtreme.AspNet.Data.Tests.NET4.csproj", "{D083C7D4-E8EC-409F-8B45-512FABB21A54}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DevExtreme.AspNet.Data.Tests.EF6", "DevExtreme.AspNet.Data.Tests.EF6\DevExtreme.AspNet.Data.Tests.EF6.csproj", "{C401BB6E-D21B-45D5-AB98-6B308DB4E4FB}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevExtreme.AspNet.Data.Tests.EF6", "DevExtreme.AspNet.Data.Tests.EF6\DevExtreme.AspNet.Data.Tests.EF6.csproj", "{C401BB6E-D21B-45D5-AB98-6B308DB4E4FB}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevExtreme.AspNet.Data.Tests.EFCore1", "DevExtreme.AspNet.Data.Tests.EFCore1\DevExtreme.AspNet.Data.Tests.EFCore1.csproj", "{215EE7D0-0E2B-4A07-810F-9224F0C5021F}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevExtreme.AspNet.Data.Tests.Common", "DevExtreme.AspNet.Data.Tests.Common\DevExtreme.AspNet.Data.Tests.Common.csproj", "{F5878AD6-459F-4FCE-9BFB-54EE94D2083F}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DevExtreme.AspNet.Data.Tests.Common", "DevExtreme.AspNet.Data.Tests.Common\DevExtreme.AspNet.Data.Tests.Common.csproj", "{F5878AD6-459F-4FCE-9BFB-54EE94D2083F}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevExtreme.AspNet.Data.Tests.Xpo", "DevExtreme.AspNet.Data.Tests.Xpo\DevExtreme.AspNet.Data.Tests.Xpo.csproj", "{074B5988-B409-4BEE-BF12-79762B459857}"
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevExtreme.AspNet.Data.Tests.EFCore2", "DevExtreme.AspNet.Data.Tests.EFCore2\DevExtreme.AspNet.Data.Tests.EFCore2.csproj", "{03F66C05-DB87-483C-B96D-567EC4C6BF5C}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevExtreme.AspNet.Data.Tests.NH", "DevExtreme.AspNet.Data.Tests.NH\DevExtreme.AspNet.Data.Tests.NH.csproj", "{B9B11471-3317-4A42-B3AE-1879B76E3941}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DevExtreme.AspNet.Data.Tests.Xpo", "DevExtreme.AspNet.Data.Tests.Xpo\DevExtreme.AspNet.Data.Tests.Xpo.csproj", "{074B5988-B409-4BEE-BF12-79762B459857}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DevExtreme.AspNet.Data.Tests.NH", "DevExtreme.AspNet.Data.Tests.NH\DevExtreme.AspNet.Data.Tests.NH.csproj", "{B9B11471-3317-4A42-B3AE-1879B76E3941}"
-EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "DevExtreme.AspNet.Data.Tests.L2S", "DevExtreme.AspNet.Data.Tests.L2S\DevExtreme.AspNet.Data.Tests.L2S.csproj", "{190E01CD-78FC-4578-ACBF-7D6C4DC57C18}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevExtreme.AspNet.Data.Tests.L2S", "DevExtreme.AspNet.Data.Tests.L2S\DevExtreme.AspNet.Data.Tests.L2S.csproj", "{190E01CD-78FC-4578-ACBF-7D6C4DC57C18}"
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DevExtreme.AspNet.Data.Tests.EFCore3", "DevExtreme.AspNet.Data.Tests.EFCore3\DevExtreme.AspNet.Data.Tests.EFCore3.csproj", "{3DAF3316-6B1B-4961-831A-790647662554}"
 EndProject
@@ -66,18 +62,10 @@ Global
 		{C401BB6E-D21B-45D5-AB98-6B308DB4E4FB}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{C401BB6E-D21B-45D5-AB98-6B308DB4E4FB}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{C401BB6E-D21B-45D5-AB98-6B308DB4E4FB}.Release|Any CPU.Build.0 = Release|Any CPU
-		{215EE7D0-0E2B-4A07-810F-9224F0C5021F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{215EE7D0-0E2B-4A07-810F-9224F0C5021F}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{215EE7D0-0E2B-4A07-810F-9224F0C5021F}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{215EE7D0-0E2B-4A07-810F-9224F0C5021F}.Release|Any CPU.Build.0 = Release|Any CPU
 		{F5878AD6-459F-4FCE-9BFB-54EE94D2083F}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{F5878AD6-459F-4FCE-9BFB-54EE94D2083F}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{F5878AD6-459F-4FCE-9BFB-54EE94D2083F}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{F5878AD6-459F-4FCE-9BFB-54EE94D2083F}.Release|Any CPU.Build.0 = Release|Any CPU
-		{03F66C05-DB87-483C-B96D-567EC4C6BF5C}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{03F66C05-DB87-483C-B96D-567EC4C6BF5C}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{03F66C05-DB87-483C-B96D-567EC4C6BF5C}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{03F66C05-DB87-483C-B96D-567EC4C6BF5C}.Release|Any CPU.Build.0 = Release|Any CPU
 		{074B5988-B409-4BEE-BF12-79762B459857}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{074B5988-B409-4BEE-BF12-79762B459857}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{074B5988-B409-4BEE-BF12-79762B459857}.Release|Any CPU.ActiveCfg = Release|Any CPU
diff --git a/net/DevExtreme.AspNet.Data/DevExtreme.AspNet.Data.csproj b/net/DevExtreme.AspNet.Data/DevExtreme.AspNet.Data.csproj
index 4e7d5fe2..f047ca60 100644
--- a/net/DevExtreme.AspNet.Data/DevExtreme.AspNet.Data.csproj
+++ b/net/DevExtreme.AspNet.Data/DevExtreme.AspNet.Data.csproj
@@ -14,7 +14,7 @@
   <PropertyGroup>
     <AssemblyName>DevExtreme.AspNet.Data</AssemblyName>
     <AssemblyVersion>99.0</AssemblyVersion>
-    <TargetFrameworks>net452;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net452;net6.0</TargetFrameworks>
     <DebugType>full</DebugType>
     <DocumentationFile>bin\Debug\$(TargetFramework)\DevExtreme.AspNet.Data.xml</DocumentationFile>
     <NoWarn>1591</NoWarn>
@@ -28,7 +28,7 @@
     <Reference Include="Microsoft.CSharp" />
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == 'netstandard2.0' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == 'net6.0' ">
     <PackageReference Include="Microsoft.CSharp" Version="4.4.0" />
   </ItemGroup>
 
diff --git a/net/Sample/Sample.csproj b/net/Sample/Sample.csproj
index 5c88e7fd..e9168b07 100644
--- a/net/Sample/Sample.csproj
+++ b/net/Sample/Sample.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
 
   <PropertyGroup>
-    <TargetFramework>net6</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
   </PropertyGroup>
 
   <ItemGroup>