#13054: sys.maxunicode is now always 0x10FFFF.
diff --git a/Doc/whatsnew/3.3.rst b/Doc/whatsnew/3.3.rst
index 717e4e4..3cd4dd1 100644
--- a/Doc/whatsnew/3.3.rst
+++ b/Doc/whatsnew/3.3.rst
@@ -55,6 +55,17 @@
=============
+PEP 393: Flexible String Representation
+=======================================
+
+XXX Add list of changes introduced by :pep:`393` here:
+
+* The value of :data:`sys.maxunicode` is now always ``1114111`` (``0x10FFFF``
+ in hexadecimal). The :c:func:`PyUnicode_GetMax` function still returns
+ either ``0xFFFF`` or ``0x10FFFF`` for backward compatibility, and it should
+ not be used with the new Unicode API (see :issue:`13054`).
+
+
Other Language Changes
======================