Index: Doc/whatsnew/3.0.rst
===================================================================
--- Doc/whatsnew/3.0.rst	(revision 81948)
+++ Doc/whatsnew/3.0.rst	(working copy)
@@ -798,6 +798,14 @@
 * A new built-in function :func:`next` was added to call the
   :meth:`__next__` method on an object.
 
+* The :func:`round` function rounding strategy and return type have
+  changed.  Exact halfway cases (for example ``round(2.5)``) are now
+  rounded to the nearest even result instead of away from zero.
+  :func:`round(x[, n])` now delegates to ``x.__round__([n])`` instead
+  of always returning a float.  It generally returns an integer when
+  called with a single argument and a value of the same type as ``x``
+  when called with two arguments.
+
 * Moved :func:`intern` to :func:`sys.intern`.
 
 * Removed: :func:`apply`.  Instead of ``apply(f, args)`` use