[ci skip] UPGRADING

Author: nielsdos

UPGRADING

@@ -193,7 +193,7 @@ PHP 8.4 UPGRADE NOTES
   an xpath query. This can give a time improvement of easily two order of
   magnitude for documents with tens of thousands of nodes.
 
-* The performance of strspn() is greatly improved. It now runs in linear time
-  instead of being bounded by quadratic time.
+* The performance of strspn() and strcspn() is greatly improved.
+  They now run in linear time instead of being bounded by quadratic time.
 
 * mb_strcut() is much faster now for UTF-8 and UTF-16 strings.