Add newer stj for net 6

Signed-off-by: James Thompson <thompson.tomo@outlook.com>

Author: thompson-tomo

src/NATS.Client.Core/NATS.Client.Core.csproj

@@ -39,16 +39,14 @@
         </PackageReference>
     </ItemGroup>
 
-    <!--  Dependencies for netstandard only  -->
-    <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' OR '$(TargetFramework)' == 'netstandard2.1'">
-        <PackageReference Include="System.Text.Json" Version="8.0.5"/>
+    <!--  Dependencies for prior to net5.0-->
+    <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net5.0'))">
         <PackageReference Include="System.Threading.Channels" Version="8.0.0"/>
         <PackageReference Include="System.Diagnostics.DiagnosticSource" Version="8.0.1"/>
         <PackageReference Include="Nullable" Version="1.3.1">
             <PrivateAssets>all</PrivateAssets>
             <IncludeAssets>runtime; build; native; contentfiles; analyzers</IncludeAssets>
         </PackageReference>
-        <PackageReference Include="System.IO.Pipelines" Version="8.0.0"/>
     </ItemGroup>
 
     <!--  Dependencies for netstandard2.0 only -->
@@ -61,8 +59,13 @@
         <PackageReference Include="IndexRange" Version="1.0.3"/>
     </ItemGroup>
 
-    <!--  Dependencies for net6.0 and net8.0 only -->
-    <ItemGroup Condition="'$(TargetFramework)' == 'net6.0' OR '$(TargetFramework)' == 'net8.0'">
+    <!--  Dependencies for prior to net8.0-->
+    <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
+        <PackageReference Include="System.Text.Json" Version="8.0.5"/>
+    </ItemGroup>
+    
+    <!--  Dependencies for prior to net9.0-->
+    <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net9.0'))">
         <PackageReference Include="System.IO.Pipelines" Version="8.0.0"/>
     </ItemGroup>
 

src/NATS.Client.JetStream/NATS.Client.JetStream.csproj

@@ -24,14 +24,13 @@
     <NoWarn>$(NoWarn);CS8774</NoWarn>
   </PropertyGroup>
 
-  <!--  Dependencies for netstandard only  -->
-  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard2.0' OR '$(TargetFramework)' == 'netstandard2.1'">
+  <!--  Dependencies for prior to net5.0-->
+  <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net5.0'))">
     <PackageReference Include="System.ComponentModel.Annotations" Version="5.0.0" />
-    <PackageReference Include="System.Text.Json" Version="8.0.5"/>
   </ItemGroup>
 
   <!--  Dependencies for net6.0 only -->
-  <ItemGroup Condition="'$(TargetFramework)' == 'net6.0'">
+  <ItemGroup Condition="!$([MSBuild]::IsTargetFrameworkCompatible('$(TargetFramework)', 'net8.0'))">
     <PackageReference Include="System.Text.Json" Version="8.0.5"/>
   </ItemGroup>