dotnet-core/release-notes/2.1/Preview/api-diff/preview2/2.1-preview2_System.Xml.Serialization.md

System.Xml.Serialization

 namespace System.Xml.Serialization {
+    public abstract class SchemaImporter
-    public class XmlSchemaImporter
+    public class XmlSchemaImporter : SchemaImporter
 }