diff --git a/Doc/whatsnew/3.7.rst b/Doc/whatsnew/3.7.rst
index 81ef032..297d9fa 100644
--- a/Doc/whatsnew/3.7.rst
+++ b/Doc/whatsnew/3.7.rst
@@ -2431,3 +2431,8 @@
 to exceptions.  Instead, the flag must be set (to cause the warnings to be
 emitted in the first place), and an explicit ``error::BytesWarning``
 warnings filter added to convert them to exceptions.
+
+Due to a change in the way docstrings are handled by the compiler, the
+implicit ``return None`` in a function body consisting solely of a docstring
+is now marked as occurring on the same line as the docstring, not on the
+function's header line.