Remove support for .NET Core 2.1 and netstandard1.0. bump .net to 4.8

Ix.NET/Source/Benchmarks.System.Interactive/Benchmarks.System.Interactive.csproj

@@ -2,7 +2,7 @@
 
   <PropertyGroup>
     <OutputType>Exe</OutputType>
-    <TargetFramework>netcoreapp2.1</TargetFramework>
+    <TargetFramework>net6.0</TargetFramework>
     <Optimize>true</Optimize>
     <Configurations>Current Sources;Ix.net 3.1.1;Ix.net 3.2</Configurations>
   </PropertyGroup>

Ix.NET/Source/Benchmarks.System.Interactive/MinMaxBenchmark.cs

@@ -9,6 +9,9 @@
 
 namespace Benchmarks.System.Interactive
 {
+
+#if !NET6_0_OR_GREATER
+
     [MemoryDiagnoser]
     public class MinMaxBenchmark
     {
@@ -43,4 +46,5 @@ public void MaxBy()
             Volatile.Write(ref _listStore, Enumerable.Range(1, N).MaxBy(v => -v, _comparer));
         }
     }
+#endif
 }

Ix.NET/Source/Benchmarks.System.Interactive/Program.cs

@@ -20,8 +20,11 @@ internal static void Main()
                 typeof(BufferCountBenchmark),
                 typeof(IgnoreElementsBenchmark),
                 typeof(DeferBenchmark),
-                typeof(RetryBenchmark),
+                typeof(RetryBenchmark)
+#if !NET6_0_OR_GREATER
+                ,
                 typeof(MinMaxBenchmark)
+#endif
             });
 
             switcher.Run();

Ix.NET/Source/Directory.Build.targets

@@ -1,31 +1,9 @@
 <Project>
 
   <!-- This props all need to be set in targets as they depend on the values set earlier -->
-  <PropertyGroup Condition="'$(TargetFramework)' == 'netstandard1.0'">
-    <DefineConstants>$(DefineConstants);NO_ARRAY_EMPTY;NO_CODE_COVERAGE_ATTRIBUTE</DefineConstants>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(TargetFramework)' == 'netstandard1.4'">
-    <DefineConstants>$(DefineConstants);NO_CODE_COVERAGE_ATTRIBUTE</DefineConstants>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(TargetFramework)' == 'net45'">
-    <DefineConstants>$(DefineConstants);NO_ARRAY_EMPTY;NO_TASK_FROMEXCEPTION</DefineConstants>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(TargetFramework)' == 'netcoreapp3.1' or '$(TargetFramework)' == 'netstandard2.1' or '$(TargetFramework)' == 'netstandard2.0'">
-    <DefineConstants>$(DefineConstants);HAS_VALUETUPLE</DefineConstants>
-  </PropertyGroup>
 
   <PropertyGroup>
     <Product>$(AssemblyName) ($(TargetFramework))</Product>
   </PropertyGroup>
 
-  <!-- Remove once coverlet supports this built-in -->
-  <Target Name="CoverletGetPathMap"
-          DependsOnTargets="InitializeSourceRootMappedPaths"
-          Returns="@(_LocalTopLevelSourceRoot)"
-          Condition="'$(DeterministicSourcePaths)' == 'true'">
-    <ItemGroup>
-      <_LocalTopLevelSourceRoot Include="@(SourceRoot)" Condition="'%(SourceRoot.NestedRoot)' == ''"/>
-    </ItemGroup>
-  </Target>
-
 </Project>

Ix.NET/Source/System.Interactive.Async.Providers.Tests/System.Interactive.Async.Providers.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.1;net461;netcoreapp3.1;net6.0</TargetFrameworks>
+    <TargetFrameworks>net48;net6.0;netcoreapp3.1</TargetFrameworks>
     <NoWarn>$(NoWarn);CS0618</NoWarn>
   </PropertyGroup>
 

Ix.NET/Source/System.Interactive.Async.Providers/System.Interactive.Async.Providers.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <Description>Interactive Extensions Async Providers Library used to build query providers and express queries over async enumerable sequences.</Description>
     <AssemblyTitle>Interactive Extensions - Async Providers Library</AssemblyTitle>
-    <TargetFrameworks>net461;netstandard2.0;netstandard2.1;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.0;netstandard2.1;net6.0</TargetFrameworks>
     <PackageTags>Ix;Interactive;Extensions;Enumerable;Asynchronous</PackageTags>
   </PropertyGroup>
 

Ix.NET/Source/System.Interactive.Async.Tests/System.Interactive.Async.Tests.csproj

@@ -1,7 +1,7 @@
 <Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
-    <TargetFrameworks>netcoreapp2.1;net461;netcoreapp3.1;net6.0</TargetFrameworks>
+    <TargetFrameworks>net48;net6.0;netcoreapp3.1</TargetFrameworks>
     <NoWarn>$(NoWarn);CS0618;CS8603;CS8625</NoWarn>
   </PropertyGroup>
 

Ix.NET/Source/System.Interactive.Async/System.Interactive.Async.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <Description>Interactive Extensions Async Library used to express queries over asynchronous enumerable sequences.</Description>
     <AssemblyTitle>Interactive Extensions - Async Library</AssemblyTitle>
-    <TargetFrameworks>net461;netstandard2.0;netstandard2.1;netcoreapp3.1</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.0;netstandard2.1;net6.0</TargetFrameworks>
     <PackageTags>Ix;Interactive;Extensions;Enumerable;Asynchronous</PackageTags>
   </PropertyGroup>
 

Ix.NET/Source/System.Interactive.Providers/System.Interactive.Providers.csproj

@@ -3,14 +3,10 @@
   <PropertyGroup>
     <Description>Interactive Extensions Providers Library used to build query providers and express queries over enumerable sequences.</Description>
     <AssemblyTitle>Interactive Extensions - Providers Library</AssemblyTitle>
-    <TargetFrameworks>net45;netstandard1.0;netstandard2.0</TargetFrameworks>
+    <TargetFrameworks>net48;netstandard2.0;net6.0</TargetFrameworks>
     <PackageTags>Ix;Interactive;Extensions;Enumerable</PackageTags>
   </PropertyGroup>
 
-  <PropertyGroup Condition="'$(TargetFramework)' == 'netstandard1.0'">
-    <DefineConstants>$(DefineConstants);CRIPPLED_REFLECTION</DefineConstants>
-  </PropertyGroup>
-
   <ItemGroup>
     <EmbeddedResource Include="Properties\System.Interactive.Providers.rd.xml" />
   </ItemGroup>
@@ -20,8 +16,4 @@
     <ReferenceAssemblyProjectReference Include="..\refs\System.Interactive.Providers.Ref\System.Interactive.Providers.Ref.csproj" ReferenceOutputAssembly="false" />
   </ItemGroup>
 
-  <ItemGroup Condition="'$(TargetFramework)' == 'netstandard1.0'">
-    <PackageReference Include="System.Linq.Queryable" Version="4.3.0" />
-  </ItemGroup>
-
 </Project>