bpo-42381: Document walrus-related syntax changes in whatsnew (GH-23382)

lysnikolaou · web-flow · commit a85fefe71b3b · 2020-11-18T15:49:28.000-08:00
Automerge-Triggered-By: GH:lysnikolaou
diff --git a/Doc/whatsnew/3.10.rst b/Doc/whatsnew/3.10.rst
@@ -154,6 +154,9 @@ Other Language Changes
   :meth:`~object.__index__` method).
   (Contributed by Serhiy Storchaka in :issue:`37999`.)
 
+* Assignment expressions can now be used unparenthesized within set literals
+  and set comprehensions, as well as in sequence indexes (but not slices).
+
 
 New Modules
 ===========
