Index: docs/request_response.txt
===================================================================
--- docs/request_response.txt	(revision 6894)
+++ docs/request_response.txt	(working copy)
@@ -156,6 +156,15 @@
    Returns ``True`` or ``False``, designating whether ``request.GET`` or
    ``request.POST`` has the given key.
 
+``get_host()``
+   **New in Django development version**
+
+   Returns the originating host of the request by checking ``request.META`` for ``HTTP_X_FORWARDED_HOST``, then ``HTTP_HOST``, then by using a combination of ``SERVER_NAME`` and ``SERVER_PORT`` as detailed in `PEP 333`_.
+
+   .. _`PEP 333`: http://www.python.org/dev/peps/pep-0333/
+
+   Example: ``"127.0.0.1:8000"``
+
 ``get_full_path()``
    Returns the ``path``, plus an appended query string, if applicable.