Mention that os.O_CLOEXEC was added to Python 3.3

diff --git a/Doc/library/os.rst b/Doc/library/os.rst
index 6adfdb18916d2b282ee09e42a8650d2f8e604b95..b2a16d9e529e29c80978de80852bf8b8ca3cd1d2 100644 (file)
--- a/Doc/library/os.rst
+++ b/Doc/library/os.rst
@@ -1369,6 +1369,8 @@ or `the MSDN <http://msdn.microsoft.com/en-us/library/z0kc8e3z.aspx>`_ on Window
 
    These constants are only available on Unix.
 
+   .. versionchanged:: 3.3
+      Add :data:`O_CLOEXEC` constant.
 
 .. data:: O_BINARY
           O_NOINHERIT