<PackageReference Include="System.Security.Permissions" Version="6.0.0-preview.1.21102.12" />

API Differences between 6.0.0-preview.1.21102.12 and 9.0.4

34 Additions 8 Removals

System.DirectoryServices

System.Security

System.Security.Permissions

System.Security.Policy

System.Xaml.Permissions