<PackageReference Include="System.Security.Permissions" Version="9.0.0-preview.6.24327.7" />

API Differences between 9.0.0-preview.6.24327.7 and 4.4.0

143 Additions 3 Removals

System.Configuration

System.DirectoryServices

System.Security

System.Security.Permissions

System.Security.Policy

System.ServiceProcess

System.Web