diff --git a/Misc/NEWS b/Misc/NEWS
index f3e7349..39abedc 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -15,6 +15,10 @@
 Library
 -------
 
+- Issue #4681: Allow mmap() to work on file sizes and offsets larger than
+  4GB, even on 32-bit builds.  Initial patch by Ross Lagerwall, adapted for
+  32-bit Windows.
+
 - Issue #11089: Fix performance issue limiting the use of ConfigParser()
   with large config files.