From https://github.com/dotnet/source-build/discussions/3481

--- a/src/nuget-client/build/common.project.props
+++ a/src/nuget-client/build/common.project.props
@@ -14,7 +14,7 @@
     <NETFXTargetFrameworkVersion>v4.7.2</NETFXTargetFrameworkVersion>
     <NETFXTargetFramework>net472</NETFXTargetFramework>
     <NETCoreTargetFramework>netcoreapp3.1</NETCoreTargetFramework>
-    <NETCoreTargetFramework Condition="'$(DotNetBuildFromSource)' == 'true'">net7.0</NETCoreTargetFramework>
+    <NETCoreTargetFramework Condition="'$(DotNetBuildFromSource)' == 'true'">net8.0</NETCoreTargetFramework>
     <NETCoreTestTargetFrameworks>net7.0</NETCoreTestTargetFrameworks>
     <NETCoreTestTargetFrameworks Condition=" ('$(CI)' == 'true' AND '$(BUILD_NET8)' != 'false') OR '$(BUILD_NET8)' == 'true' ">net7.0;net8.0</NETCoreTestTargetFrameworks>
     <NetStandardVersion>netstandard2.0</NetStandardVersion>
@@ -24,7 +24,7 @@
     <TargetFrameworksExeForSigning Condition="'$(DotNetBuildFromSource)' == 'true'">$(TargetFrameworksExe);net7.0</TargetFrameworksExeForSigning>
     <MinimalTargetFrameworksExeSigning>$(NETFXTargetFramework);netcoreapp5.0</MinimalTargetFrameworksExeSigning>
     <MinimalTargetFrameworksExeSigning Condition=" '$(IsXPlat)' == 'true' ">netcoreapp5.0</MinimalTargetFrameworksExeSigning>
-    <MinimalTargetFrameworksExeSigning Condition="'$(DotNetBuildFromSource)' == 'true'">net7.0</MinimalTargetFrameworksExeSigning>
+    <MinimalTargetFrameworksExeSigning Condition="'$(DotNetBuildFromSource)' == 'true'">net8.0</MinimalTargetFrameworksExeSigning>
     <TargetFrameworksLibrary>$(NETFXTargetFramework);$(NetStandardVersion)</TargetFrameworksLibrary>
     <TargetFrameworksLibrary Condition="'$(DotNetBuildFromSource)' == 'true'">$(NETCoreTargetFramework);$(NetStandardVersion)</TargetFrameworksLibrary>
     <TargetFrameworksLibraryForSigning>$(TargetFrameworksLibrary);netcoreapp5.0</TargetFrameworksLibraryForSigning>
--- a/src/nuget-client/build/common.targets
+++ b/src/nuget-client/build/common.targets
@@ -6,7 +6,7 @@
     <IsDesktop>true</IsDesktop>
   </PropertyGroup>
 
-  <PropertyGroup Condition=" $(TargetFramework.StartsWith('netcoreapp')) OR $(TargetFramework.StartsWith('netstandard')) OR $(TargetFramework.StartsWith('net6')) OR $(TargetFramework.StartsWith('net7')) ">
+  <PropertyGroup Condition=" $(TargetFramework.StartsWith('netcoreapp')) OR $(TargetFramework.StartsWith('netstandard')) OR $(TargetFramework.StartsWith('net6')) OR $(TargetFramework.StartsWith('net7')) OR $(TargetFramework.StartsWith('net8')) ">
     <DefineConstants>$(DefineConstants);IS_CORECLR</DefineConstants>
     <IsCore>true</IsCore>
   </PropertyGroup>
--- a/src/nuget-client/src/NuGet.Core/NuGet.Configuration/NuGet.Configuration.csproj
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Configuration/NuGet.Configuration.csproj
@@ -26,7 +26,7 @@
     <Reference Include="System.Xml.Linq" />
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == '$(NetStandardVersion)' or '$(TargetFramework)' == 'net7.0' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == '$(NetStandardVersion)' or '$(TargetFramework)' == 'net7.0' or '$(TargetFramework)' == 'net8.0' ">
     <PackageReference Include="System.Security.Cryptography.ProtectedData" />
   </ItemGroup>
 
--- a/src/nuget-client/src/NuGet.Core/NuGet.PackageManagement/NuGet.PackageManagement.csproj
+++ b/src/nuget-client/src/NuGet.Core/NuGet.PackageManagement/NuGet.PackageManagement.csproj
@@ -32,7 +32,7 @@
     <Reference Include="System.Net.Http" />
   </ItemGroup>
 
-  <ItemGroup Condition=" '$(TargetFramework)' == '$(NetStandardVersion)' or '$(TargetFramework)' == 'net7.0' ">
+  <ItemGroup Condition=" '$(TargetFramework)' == '$(NetStandardVersion)' or '$(TargetFramework)' == 'net7.0' or '$(TargetFramework)' == 'net8.0' ">
     <PackageReference Include="System.ComponentModel.Composition" />
   </ItemGroup>
 
diff --git a/src/NuGet.Clients/NuGet.PackageManagement.PowerShellCmdlets/Exceptions/PackageSourceException.cs b/src/NuGet.Clients/NuGet.PackageManagement.PowerShellCmdlets/Exceptions/PackageSourceException.cs
index ef589f85a..a0615d68c 100644
--- a/src/nuget-client/src/NuGet.Clients/NuGet.PackageManagement.PowerShellCmdlets/Exceptions/PackageSourceException.cs
+++ b/src/nuget-client/src/NuGet.Clients/NuGet.PackageManagement.PowerShellCmdlets/Exceptions/PackageSourceException.cs
@@ -14,6 +14,9 @@ public PackageSourceException(string message)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected PackageSourceException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Commands/Common/CommandException.cs b/src/NuGet.Core/NuGet.Commands/Common/CommandException.cs
index 0b2ded3fc..6cf41ea16 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Commands/Common/CommandException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Commands/Common/CommandException.cs
@@ -29,6 +29,9 @@ public CommandException(string message, Exception exception)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected CommandException(SerializationInfo info, StreamingContext context)
             : base(info, context)
         {
diff --git a/src/NuGet.Core/NuGet.Configuration/Exceptions/NuGetConfigurationException.cs b/src/NuGet.Core/NuGet.Configuration/Exceptions/NuGetConfigurationException.cs
index 7e62c4562..88ab349ba 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Configuration/Exceptions/NuGetConfigurationException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Configuration/Exceptions/NuGetConfigurationException.cs
@@ -22,6 +22,9 @@ public NuGetConfigurationException(string message, Exception innerException)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected NuGetConfigurationException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Frameworks/FrameworkException.cs b/src/NuGet.Core/NuGet.Frameworks/FrameworkException.cs
index 9e538d481..5a7fd3feb 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Frameworks/FrameworkException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Frameworks/FrameworkException.cs
@@ -14,6 +14,9 @@ public FrameworkException(string message)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected FrameworkException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Packaging/Licenses/NuGetLicenseExpressionParsingException.cs b/src/NuGet.Core/NuGet.Packaging/Licenses/NuGetLicenseExpressionParsingException.cs
index b48fe5bdd..bee4f569b 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Packaging/Licenses/NuGetLicenseExpressionParsingException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Packaging/Licenses/NuGetLicenseExpressionParsingException.cs
@@ -18,6 +18,9 @@ public NuGetLicenseExpressionParsingException(string message, Exception innerExc
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected NuGetLicenseExpressionParsingException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Protocol/Exceptions/FatalProtocolException.cs b/src/NuGet.Core/NuGet.Protocol/Exceptions/FatalProtocolException.cs
index 68913b98d..999da9db7 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Exceptions/FatalProtocolException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Exceptions/FatalProtocolException.cs
@@ -18,6 +18,9 @@ public FatalProtocolException(string message, Exception innerException) : base(m
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected FatalProtocolException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Protocol/Exceptions/InvalidCacheProtocolException.cs b/src/NuGet.Core/NuGet.Protocol/Exceptions/InvalidCacheProtocolException.cs
index de810344a..07ae05cae 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Exceptions/InvalidCacheProtocolException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Exceptions/InvalidCacheProtocolException.cs
@@ -23,6 +23,9 @@ public InvalidCacheProtocolException(string message, Exception innerException)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected InvalidCacheProtocolException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Protocol/Exceptions/NuGetProtocolException.cs b/src/NuGet.Core/NuGet.Protocol/Exceptions/NuGetProtocolException.cs
index 8a1a81c9d..0655b8429 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Exceptions/NuGetProtocolException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Exceptions/NuGetProtocolException.cs
@@ -22,6 +22,9 @@ public NuGetProtocolException(string message, Exception innerException)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected NuGetProtocolException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Protocol/Exceptions/RetriableProtocolException.cs b/src/NuGet.Core/NuGet.Protocol/Exceptions/RetriableProtocolException.cs
index 4a63a8f4c..a53490f62 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Exceptions/RetriableProtocolException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Exceptions/RetriableProtocolException.cs
@@ -17,6 +17,9 @@ public RetriableProtocolException(string message, Exception innerException) : ba
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected RetriableProtocolException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Protocol/Plugins/PluginException.cs b/src/NuGet.Core/NuGet.Protocol/Plugins/PluginException.cs
index da7df46fd..ea8c8083e 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Plugins/PluginException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Plugins/PluginException.cs
@@ -31,6 +31,9 @@ public PluginException(string message, Exception innerException)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         private PluginException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Protocol/Plugins/ProtocolException.cs b/src/NuGet.Core/NuGet.Protocol/Plugins/ProtocolException.cs
index df18f9f81..e701ece77 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Plugins/ProtocolException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Protocol/Plugins/ProtocolException.cs
@@ -31,6 +31,9 @@ public ProtocolException(string message, Exception innerException)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         private ProtocolException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverConstraintException.cs b/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverConstraintException.cs
index 6998e28c1..e9252092a 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverConstraintException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverConstraintException.cs
@@ -17,6 +17,9 @@ public NuGetResolverConstraintException(string message)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected NuGetResolverConstraintException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverException.cs b/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverException.cs
index e2b426eb4..c3ea9fb08 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverException.cs
@@ -14,6 +14,9 @@ public NuGetResolverException(string message)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected NuGetResolverException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }
diff --git a/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverInputException.cs b/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverInputException.cs
index e1542ec4f..0471a3597 100644
--- a/src/nuget-client/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverInputException.cs
+++ b/src/nuget-client/src/NuGet.Core/NuGet.Resolver/Exceptions/NuGetResolverInputException.cs
@@ -17,6 +17,9 @@ public NuGetResolverInputException(string message)
         {
         }
 
+#if NET8_0_OR_GREATER
+        [Obsolete(DiagnosticId = "SYSLIB0051")]
+#endif
         protected NuGetResolverInputException(SerializationInfo info, StreamingContext context) : base(info, context)
         {
         }