add str.casefold() (closes #13752)
diff --git a/Misc/NEWS b/Misc/NEWS
index adb6e45..1afe584 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -10,6 +10,8 @@
 Core and Builtins
 -----------------
 
+- Issue #13752: Add a casefold() method to str.
+
 - Issue #13761: Add a "flush" keyword argument to the print() function,
   used to ensure flushing the output stream.