<PackageReference Include="System.Security.Permissions" Version="4.5.0-preview1-26216-02" />

API Differences between 4.5.0-preview1-26216-02 and 6.0.0-preview.3.21201.4

27 Additions 21 Removals

System.Configuration

System.Security.Permissions

System.Security.Policy

System.ServiceProcess

System.Web