dotnet-core/release-notes/2.1/Preview/api-diff/preview1/2.1-preview1_Microsoft.Win32.SafeHandles.md

Microsoft.Win32.SafeHandles

 namespace Microsoft.Win32.SafeHandles {
     public sealed class SafeX509ChainHandle : SafeHandleZeroOrMinusOneIsInvalid {
-        public override bool IsInvalid { get; }

     }
 }