diff -r cb876235f29d Doc/library/shutil.rst
--- a/Doc/library/shutil.rst	Tue Feb 12 02:04:27 2013 +0100
+++ b/Doc/library/shutil.rst	Wed Feb 13 14:19:32 2013 -0500
@@ -466,7 +466,7 @@
    - *gztar*: gzip'ed tar-file
    - *bztar*: bzip2'ed tar-file (if the :mod:`bz2` module is available.)
    - *tar*: uncompressed tar file
-   - *zip*: ZIP file
+   - *zip*: ZIP file (using the ZIP64 extension for archives larger than 2GB.)
 
    You can register new formats or provide your own archiver for any existing
    formats, by using :func:`register_archive_format`.
diff -r cb876235f29d Lib/shutil.py
--- a/Lib/shutil.py	Tue Feb 12 02:04:27 2013 +0100
+++ b/Lib/shutil.py	Wed Feb 13 14:19:32 2013 -0500
@@ -680,7 +680,8 @@
 
         if not dry_run:
             zip = zipfile.ZipFile(zip_filename, "w",
-                                  compression=zipfile.ZIP_DEFLATED)
+                                  compression=zipfile.ZIP_DEFLATED,
+                                  allowZip64=True)
 
             for dirpath, dirnames, filenames in os.walk(base_dir):
                 for name in filenames:
diff -r cb876235f29d Misc/ACKS
--- a/Misc/ACKS	Tue Feb 12 02:04:27 2013 +0100
+++ b/Misc/ACKS	Wed Feb 13 14:19:32 2013 -0500
@@ -755,6 +755,7 @@
 Steve Majewski
 Grzegorz Makarewicz
 David Malcolm
+William Mallard
 Ken Manheimer
 Vladimir Marangozov
 Colin Marc