diff --git a/src/Directory.Build.props b/src/Directory.Build.props
index efb4ec43..3efb4b24 100644
--- a/src/Directory.Build.props
+++ b/src/Directory.Build.props
@@ -2,7 +2,11 @@
 	<PropertyGroup>
 		<!-- Properties related to build/pack -->
         <IsPackable>false</IsPackable>
-		<Version>10.0.4</Version>
+		<Version>10.0.5</Version>
+		<MapsterPluginsTFMs>netstandard2.0;net10.0;net9.0;net8.0</MapsterPluginsTFMs>
+		<MapsterTFMs>netstandard2.0;net10.0;net9.0;net8.0</MapsterTFMs>
+		<MapsterEFCoreTFMs>net10.0;net9.0;net8.0</MapsterEFCoreTFMs>
+		<MapsterToolTFMs>net10.0;net9.0;net8.0</MapsterToolTFMs>
     </PropertyGroup>
     <PropertyGroup>
 		<!-- Metadata -->
diff --git a/src/Mapster.Async/Mapster.Async.csproj b/src/Mapster.Async/Mapster.Async.csproj
index ccf06f21..5ece3100 100644
--- a/src/Mapster.Async/Mapster.Async.csproj
+++ b/src/Mapster.Async/Mapster.Async.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>$(MapsterPluginsTFMs)</TargetFrameworks>
     <Description>Async supports for Mapster</Description>
     <IsPackable>true</IsPackable>
     <PackageTags>Mapster;Async</PackageTags>
diff --git a/src/Mapster.DependencyInjection/Mapster.DependencyInjection.csproj b/src/Mapster.DependencyInjection/Mapster.DependencyInjection.csproj
index f27349f7..3c4f5d5a 100644
--- a/src/Mapster.DependencyInjection/Mapster.DependencyInjection.csproj
+++ b/src/Mapster.DependencyInjection/Mapster.DependencyInjection.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>$(MapsterPluginsTFMs)</TargetFrameworks>
     <Description>Dependency Injection supports for Mapster</Description>
     <IsPackable>true</IsPackable>
     <PackageTags>Mapster;DependencyInjection</PackageTags>
diff --git a/src/Mapster.EFCore/Mapster.EFCore.csproj b/src/Mapster.EFCore/Mapster.EFCore.csproj
index 4bb8809f..7e7922d3 100644
--- a/src/Mapster.EFCore/Mapster.EFCore.csproj
+++ b/src/Mapster.EFCore/Mapster.EFCore.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>net10.0;net9.0;net8.0;</TargetFrameworks>
+    <TargetFrameworks>$(MapsterEFCoreTFMs)</TargetFrameworks>
     <Description>EFCore plugin for Mapster</Description>
 	<IsPackable>true</IsPackable>
     <PackageTags>Mapster;EFCore</PackageTags>
diff --git a/src/Mapster.Immutable/Mapster.Immutable.csproj b/src/Mapster.Immutable/Mapster.Immutable.csproj
index ed91137f..8887adec 100644
--- a/src/Mapster.Immutable/Mapster.Immutable.csproj
+++ b/src/Mapster.Immutable/Mapster.Immutable.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>$(MapsterPluginsTFMs)</TargetFrameworks>
     <Description>Immutable collection supports for Mapster</Description>
     <IsPackable>true</IsPackable>
     <PackageTags>Mapster;Immutable</PackageTags>
diff --git a/src/Mapster.JsonNet/Mapster.JsonNet.csproj b/src/Mapster.JsonNet/Mapster.JsonNet.csproj
index 3524467c..703726ac 100644
--- a/src/Mapster.JsonNet/Mapster.JsonNet.csproj
+++ b/src/Mapster.JsonNet/Mapster.JsonNet.csproj
@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>$(MapsterPluginsTFMs)</TargetFrameworks>
     <Description>Json.net conversion supports for Mapster</Description>
     <IsPackable>true</IsPackable>
     <PackageTags>Mapster;Json.net</PackageTags>
diff --git a/src/Mapster.Tool/Mapster.Tool.csproj b/src/Mapster.Tool/Mapster.Tool.csproj
index 20e678c1..9d4e64a6 100644
--- a/src/Mapster.Tool/Mapster.Tool.csproj
+++ b/src/Mapster.Tool/Mapster.Tool.csproj
@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFrameworks>net10.0;net9.0;net8.0;</TargetFrameworks>
+    <TargetFrameworks>$(MapsterToolTFMs)</TargetFrameworks>
     <IsPackable>true</IsPackable>
     <PackAsTool>true</PackAsTool>
     <ToolCommandName>dotnet-mapster</ToolCommandName>
diff --git a/src/Mapster/Mapster.csproj b/src/Mapster/Mapster.csproj
index e6b79780..930cf61b 100644
--- a/src/Mapster/Mapster.csproj
+++ b/src/Mapster/Mapster.csproj
@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="utf-8"?>
 <Project Sdk="Microsoft.NET.Sdk">
   <PropertyGroup>
-    <TargetFrameworks>netstandard2.0;net10.0;net9.0;net8.0</TargetFrameworks>
+    <TargetFrameworks>$(MapsterTFMs)</TargetFrameworks>
     <AssemblyName>Mapster</AssemblyName>
     <Description>A fast, fun and stimulating object to object mapper. Kind of like AutoMapper, just simpler and way, way faster.</Description>
     <PackageId>Mapster</PackageId>
diff --git a/src/Mapster/Utils/CodeAnalysisAttributes.cs b/src/Mapster/Utils/CodeAnalysisAttributes.cs
index 212fb714..a2a4b487 100644
--- a/src/Mapster/Utils/CodeAnalysisAttributes.cs
+++ b/src/Mapster/Utils/CodeAnalysisAttributes.cs
@@ -4,14 +4,14 @@
 namespace System.Diagnostics.CodeAnalysis
 {
     [AttributeUsage(AttributeTargets.Parameter, Inherited = false)]
-    public sealed class NotNullWhenAttribute : Attribute
+    internal sealed class NotNullWhenAttribute : Attribute
     {
         public NotNullWhenAttribute(bool returnValue) => ReturnValue = returnValue;
         public bool ReturnValue { get; }
     }
 
     [AttributeUsage(AttributeTargets.Parameter | AttributeTargets.ReturnValue, Inherited = false)]
-    public sealed class NotNullIfNotNullAttribute : Attribute
+    internal sealed class NotNullIfNotNullAttribute : Attribute
     {
         public NotNullIfNotNullAttribute(string parameterName) => ParameterName = parameterName;
         public string ParameterName { get; }
diff --git a/src/Mapster/Utils/CoreExtensions.cs b/src/Mapster/Utils/CoreExtensions.cs
index e5866402..c2799f92 100644
--- a/src/Mapster/Utils/CoreExtensions.cs
+++ b/src/Mapster/Utils/CoreExtensions.cs
@@ -25,7 +25,7 @@ public static void LockRemove<T>(this List<T> list, T item)
             }
         }
 
-#if !NET6_0_OR_GREATER
+#if NETSTANDARD2_0
         public static HashSet<T> ToHashSet<T>(this IEnumerable<T> source)
         {
             return new HashSet<T>(source);