diff --git a/Doc/library/zipfile.rst b/Doc/library/zipfile.rst
index 1a4201c..73af8ab 100644
--- a/Doc/library/zipfile.rst
+++ b/Doc/library/zipfile.rst
@@ -123,9 +123,10 @@
    and :program:`unzip` commands on Unix (the InfoZIP utilities) don't support
    these extensions.
 
-   If the file is created with mode ``'a'`` or ``'w'`` and then
-   :meth:`close`\ d without adding any files to the archive, the appropriate
-   ZIP structures for an empty archive will be written to the file.
+   .. versionchanged:: 2.7.1
+      If the file is created with mode ``'a'`` or ``'w'`` and then
+      :meth:`close`\ d without adding any files to the archive, the appropriate
+      ZIP structures for an empty archive will be written to the file.
 
    ZipFile is also a context manager and therefore supports the
    :keyword:`with` statement.  In the example, *myzip* is closed after the