dotnet-core/release-notes/5.0/netstandard2.1/5.0-preview5_Microsoft.Win32.SafeHandles.md

Microsoft.Win32.SafeHandles

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

     }
 }