diff --git a/Doc/library/itertools.rst b/Doc/library/itertools.rst
index 47c5326d137c50d..79690208b703121 100644
--- a/Doc/library/itertools.rst
+++ b/Doc/library/itertools.rst
@@ -208,6 +208,10 @@ loops that truncate the stream.
           for iterable in iterables:
               yield from iterable
 
+   Note that :pep:`798` unpacking syntax provides similar functionality
+   so that ``list(chain(p, q))`` could be written as
+   ``[*s for s in (p, q)]``.
+
 
 .. classmethod:: chain.from_iterable(iterable)
 
@@ -219,6 +223,10 @@ loops that truncate the stream.
           for iterable in iterables:
               yield from iterable
 
+   Note that :pep:`798` unpacking syntax provides similar functionality
+   so that ``list(chain.from_iterable(iterables))`` could be written as
+   ``[*s for s in iterables]``.
+
 
 .. function:: combinations(iterable, r)