diff --git a/BuildAllConfigurations.proj b/BuildAllConfigurations.proj
new file mode 100644
index 0000000..3a31715
--- /dev/null
+++ b/BuildAllConfigurations.proj
@@ -0,0 +1,24 @@
+<?xml version="1.0" encoding="utf-8"?>
+<Project xmlns="http://schemas.microsoft.com/developer/msbuild/2003" DefaultTargets="Rebuild" ToolsVersion="4.0">
+  <ItemGroup>
+    <ConfigurationList Include="Debug-40" />
+    <ConfigurationList Include="Debug-45" />
+    <ConfigurationList Include="Release-40" />
+    <ConfigurationList Include="Release-45" />
+    <PlatformList Include="Any CPU" />
+    <TargetList Include="Build" />
+    <ProjectList Include="$(MSBuildProjectDirectory)\SQLite.CodeFirst.sln" />
+  </ItemGroup>
+
+  <Target Name="Rebuild" Outputs="%(PlatformList.Identity)">
+    <PropertyGroup>
+      <CurrentPlatform>
+        %(PlatformList.Identity)
+      </CurrentPlatform>
+    </PropertyGroup>
+    <MSBuild Projects="@(ProjectList)"
+               Properties="Configuration=%(ConfigurationList.Identity);Platform=$(CurrentPlatform);"
+               Targets="Rebuild"
+               SkipNonexistentProjects="true" />
+  </Target>
+</Project>
\ No newline at end of file
diff --git a/SQLite.CodeFirst.Console/SQLite.CodeFirst.Console.csproj b/SQLite.CodeFirst.Console/SQLite.CodeFirst.Console.csproj
index 5b38a4a..4aa8b42 100644
--- a/SQLite.CodeFirst.Console/SQLite.CodeFirst.Console.csproj
+++ b/SQLite.CodeFirst.Console/SQLite.CodeFirst.Console.csproj
@@ -16,7 +16,7 @@
     <SolutionDir Condition="$(SolutionDir) == '' Or $(SolutionDir) == '*Undefined*'">..\</SolutionDir>
     <RestorePackages>true</RestorePackages>
   </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug-40|AnyCPU' OR '$(Configuration)|$(Platform)' == 'Debug-45|AnyCPU' ">
     <PlatformTarget>AnyCPU</PlatformTarget>
     <DebugSymbols>true</DebugSymbols>
     <DebugType>full</DebugType>
@@ -26,7 +26,7 @@
     <ErrorReport>prompt</ErrorReport>
     <WarningLevel>4</WarningLevel>
   </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release-40|AnyCPU' OR  '$(Configuration)|$(Platform)' == 'Release-45|AnyCPU'">
     <PlatformTarget>AnyCPU</PlatformTarget>
     <DebugType>pdbonly</DebugType>
     <Optimize>true</Optimize>
diff --git a/SQLite.CodeFirst.sln b/SQLite.CodeFirst.sln
index b0b52ac..b32906a 100644
--- a/SQLite.CodeFirst.sln
+++ b/SQLite.CodeFirst.sln
@@ -16,23 +16,34 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = ".nuget", ".nuget", "{01B97A
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Build", "Build", "{7031BD3C-AE76-43CD-91B6-B6BCD823968C}"
 	ProjectSection(SolutionItems) = preProject
+		BuildAllConfigurations.proj = BuildAllConfigurations.proj
 		release_appveyor.yml = release_appveyor.yml
 	EndProjectSection
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
-		Debug|Any CPU = Debug|Any CPU
-		Release|Any CPU = Release|Any CPU
+		Debug-40|Any CPU = Debug-40|Any CPU
+		Debug-45|Any CPU = Debug-45|Any CPU
+		Release-40|Any CPU = Release-40|Any CPU
+		Release-45|Any CPU = Release-45|Any CPU
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
-		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Release|Any CPU.Build.0 = Release|Any CPU
-		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Release|Any CPU.Build.0 = Release|Any CPU
+		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Debug-40|Any CPU.ActiveCfg = Debug-40|Any CPU
+		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Debug-40|Any CPU.Build.0 = Debug-40|Any CPU
+		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Debug-45|Any CPU.ActiveCfg = Debug-45|Any CPU
+		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Debug-45|Any CPU.Build.0 = Debug-45|Any CPU
+		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Release-40|Any CPU.ActiveCfg = Release-40|Any CPU
+		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Release-40|Any CPU.Build.0 = Release-40|Any CPU
+		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Release-45|Any CPU.ActiveCfg = Release-45|Any CPU
+		{50A32FE4-0E13-4213-A373-72523CDF34D9}.Release-45|Any CPU.Build.0 = Release-45|Any CPU
+		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Debug-40|Any CPU.ActiveCfg = Debug-40|Any CPU
+		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Debug-40|Any CPU.Build.0 = Debug-40|Any CPU
+		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Debug-45|Any CPU.ActiveCfg = Debug-45|Any CPU
+		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Debug-45|Any CPU.Build.0 = Debug-45|Any CPU
+		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Release-40|Any CPU.ActiveCfg = Release-40|Any CPU
+		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Release-40|Any CPU.Build.0 = Release-40|Any CPU
+		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Release-45|Any CPU.ActiveCfg = Release-45|Any CPU
+		{DEDABD86-6EA0-4673-A858-A4F71958F51D}.Release-45|Any CPU.Build.0 = Release-45|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/SQLite.CodeFirst/SQLite.CodeFirst.csproj b/SQLite.CodeFirst/SQLite.CodeFirst.csproj
index 188c83a..4b50c6f 100644
--- a/SQLite.CodeFirst/SQLite.CodeFirst.csproj
+++ b/SQLite.CodeFirst/SQLite.CodeFirst.csproj
@@ -2,14 +2,13 @@
 <Project ToolsVersion="12.0" DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <Import Project="$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props" Condition="Exists('$(MSBuildExtensionsPath)\$(MSBuildToolsVersion)\Microsoft.Common.props')" />
   <PropertyGroup>
-    <Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
+    <Configuration Condition=" '$(Configuration)' == '' ">Debug-45</Configuration>
     <Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
     <ProjectGuid>{50A32FE4-0E13-4213-A373-72523CDF34D9}</ProjectGuid>
     <OutputType>Library</OutputType>
     <AppDesignerFolder>Properties</AppDesignerFolder>
     <RootNamespace>SQLite.CodeFirst</RootNamespace>
     <AssemblyName>SQLite.CodeFirst</AssemblyName>
-    <TargetFrameworkVersion>v4.5.2</TargetFrameworkVersion>
     <FileAlignment>512</FileAlignment>
     <AutoGenerateBindingRedirects>true</AutoGenerateBindingRedirects>
     <NuGetPackageImportStamp>b4e826ae</NuGetPackageImportStamp>
@@ -17,32 +16,57 @@
     <RestorePackages>true</RestorePackages>
     <TargetFrameworkProfile />
   </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
+  <!-- <Debug Configuration> -->
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug-40|AnyCPU' OR '$(Configuration)|$(Platform)' == 'Debug-45|AnyCPU'">
     <PlatformTarget>AnyCPU</PlatformTarget>
     <DebugSymbols>true</DebugSymbols>
-    <DebugType>full</DebugType>
-    <Optimize>false</Optimize>
-    <OutputPath>bin\Debug\</OutputPath>
     <DefineConstants>DEBUG;TRACE</DefineConstants>
+    <DebugType>full</DebugType>
     <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Debug-40|AnyCPU'">
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
+    <OutputPath>bin\Debug\net40</OutputPath>
   </PropertyGroup>
-  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug-45|AnyCPU' ">
+    <OutputPath>bin\Debug\net45</OutputPath>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+  </PropertyGroup>
+  <!-- </Debug Configuration> -->
+  <!-- <Release Configuration> -->
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release-40|AnyCPU' OR '$(Configuration)|$(Platform)' == 'Release-45|AnyCPU'">
     <PlatformTarget>AnyCPU</PlatformTarget>
-    <DebugType>pdbonly</DebugType>
-    <Optimize>true</Optimize>
-    <OutputPath>bin\Release\</OutputPath>
     <DefineConstants>TRACE</DefineConstants>
+    <Optimize>true</Optimize>
+    <DebugType>pdbonly</DebugType>
     <ErrorReport>prompt</ErrorReport>
-    <WarningLevel>4</WarningLevel>
+    <CodeAnalysisRuleSet>MinimumRecommendedRules.ruleset</CodeAnalysisRuleSet>
+  </PropertyGroup>
+  <PropertyGroup Condition="'$(Configuration)|$(Platform)' == 'Release-40|AnyCPU'">
+    <OutputPath>bin\Release\net40</OutputPath>
+    <TargetFrameworkVersion>v4.0</TargetFrameworkVersion>
   </PropertyGroup>
+  <PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release-45|AnyCPU' ">
+    <OutputPath>bin\Release\net45</OutputPath>
+    <TargetFrameworkVersion>v4.5</TargetFrameworkVersion>
+  </PropertyGroup>
+  <!-- </Release Configuration> -->
   <PropertyGroup>
     <StartupObject />
   </PropertyGroup>
-  <ItemGroup>
+  <!-- TargetFrameworkVersion depended references -->
+  <ItemGroup Condition="'$(Configuration)|$(Platform)' == 'Debug-40|AnyCPU' OR '$(Configuration)|$(Platform)' == 'Release-40|AnyCPU'">
+    <Reference Include="EntityFramework">
+      <HintPath>..\packages\EntityFramework.6.1.2\lib\net40\EntityFramework.dll</HintPath>
+    </Reference>
+  </ItemGroup>
+  <ItemGroup Condition="'$(Configuration)|$(Platform)' == 'Debug-45|AnyCPU' OR '$(Configuration)|$(Platform)' == 'Release-45|AnyCPU'">
     <Reference Include="EntityFramework">
       <HintPath>..\packages\EntityFramework.6.1.2\lib\net45\EntityFramework.dll</HintPath>
     </Reference>
+  </ItemGroup>
+  <ItemGroup>
     <Reference Include="System" />
     <Reference Include="System.Core" />
     <Reference Include="System.Data" />
@@ -91,11 +115,4 @@
     <Error Condition="!Exists('$(SolutionDir)\.nuget\NuGet.targets')" Text="$([System.String]::Format('$(ErrorText)', '$(SolutionDir)\.nuget\NuGet.targets'))" />
   </Target>
   <Import Project="$(SolutionDir)\.nuget\NuGet.targets" Condition="Exists('$(SolutionDir)\.nuget\NuGet.targets')" />
-  <!-- To modify your build process, add your task inside one of the targets below and uncomment it. 
-       Other similar extension points exist, see Microsoft.Common.targets.
-  <Target Name="BeforeBuild">
-  </Target>
-  <Target Name="AfterBuild">
-  </Target>
-  -->
 </Project>
\ No newline at end of file
diff --git a/SQLite.CodeFirst/SQLite.CodeFirst.csproj.nuspec b/SQLite.CodeFirst/SQLite.CodeFirst.csproj.nuspec
index d8f0de6..f34f826 100644
--- a/SQLite.CodeFirst/SQLite.CodeFirst.csproj.nuspec
+++ b/SQLite.CodeFirst/SQLite.CodeFirst.csproj.nuspec
@@ -23,6 +23,9 @@
     </frameworkAssemblies>
   </metadata>
   <files>
-    <file src="bin\$configuration$\$id$.dll" target="lib\net45\SQLite.CodeFirst.dll" />
+    <!-- Exclude all debug stuff  -->
+    <file src="bin\Debug\**\$id$.dll" target="lib" exclude="bin\Debug\**" />
+    <!-- Include the release dlls -->
+    <file src="bin\Release\**\$id$.dll" target="lib" />
   </files>
 </package>
\ No newline at end of file
diff --git a/release_appveyor.yml b/release_appveyor.yml
index 46c37bb..7a2d816 100644
--- a/release_appveyor.yml
+++ b/release_appveyor.yml
@@ -3,7 +3,6 @@ branches:
   only:
   - master
 skip_tags: true
-configuration: Release
 platform: Any CPU
 assembly_info:
   patch: true
@@ -12,12 +11,24 @@ assembly_info:
   assembly_file_version: '{version}'
   assembly_informational_version: '{version}'
 build:
-  publish_nuget: true
-  publish_nuget_symbols: true
+  project: BuildAllConfigurations.proj
   verbosity: normal
+after_build:
+- ps: >-
+    Write-Host $env:APPVEYOR_BUILD_FOLDER
+
+    cd $env:APPVEYOR_BUILD_FOLDER
+
+    cd '.nuget'
+
+    ./nuget.exe pack '..\SQLite.CodeFirst\SQLite.CodeFirst.csproj' -Properties -Symbols -OutputDirectory '..\SQLite.CodeFirst\bin'
 artifacts:
-- path: SQLite.CodeFirst\bin\*\SQLite.CodeFirst.dll
-  name: SQLiteCodeFirst
+- path: SQLite.CodeFirst\bin\Debug**\SQLite.CodeFirst.*
+  name: Debug
+- path: SQLite.CodeFirst\bin\Release\**\SQLite.CodeFirst.dll
+  name: Release
+- path: SQLite.CodeFirst\bin\*.nupkg
+  name: NuPkg
 deploy:
 - provider: NuGet
   api_key:
@@ -30,7 +41,7 @@ deploy:
   description: https://www.nuget.org/packages/SQLite.CodeFirst/
   auth_token:
     secure: e3cqaFy9PzI9TAdZJBIDy97Bfbwa7j0EXe2yw7Ev9aJXK0Q+3mnULqb1VU4P7BWR
-  artifact: SQLiteCodeFirst
+  artifact: Release
   draft: true
   on:
     branch: master