Refs #28355 -- Forwardported 1.11.4 release note.

docs/releases/1.11.4.txt

@@ -9,4 +9,6 @@ Django 1.11.4 fixes several bugs in 1.11.3.
 Bugfixes
 ========
 
-* ...
+* Fixed a regression in 1.11.3 on Python 2 where non-ASCII ``format`` values
+  for date/time widgets results in an empty ``value`` in the widget's HTML
+  (:ticket:`28355`).