dotnet-core/release-notes/6.0/preview/api-diff/preview1/.Net/6.0-preview1_System.Globalization.md

System.Globalization

 namespace System.Globalization {
     public class StringInfo {
+        public static int GetNextTextElementLength(ReadOnlySpan<char> str);
+        public static int GetNextTextElementLength(string str);
+        public static int GetNextTextElementLength(string str, int index);
     }
 }