<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