dotnet-core/release-notes/3.0/preview/api-diff/preview5/3.0-preview5_System.Runtime.Loader.md

System.Runtime.Loader

 namespace System.Runtime.Loader {
     public class AssemblyLoadContext {
+        public static AssemblyLoadContext CurrentContextualReflectionContext { get; }
+        public AssemblyLoadContext.ContextualReflectionScope EnterContextualReflection();
+        public static AssemblyLoadContext.ContextualReflectionScope EnterContextualReflection(Assembly activating);
+        public struct ContextualReflectionScope : IDisposable {
+            public void Dispose();
+        }
     }
 }