Fixed #10303 -- Corrected a contradiction in the docs regarding the capabilities of the .update() clause that was introduced by the documentation for F() expressions. Thanks to gluckj for the report.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@9846 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/topics/db/queries.txt

@@ -767,9 +767,7 @@ a ``QuerySet``. You can do this with the ``update()`` method. For example::
     Entry.objects.filter(pub_date__year=2007).update(headline='Everything is the same')
 
 You can only set non-relation fields and ``ForeignKey`` fields using this
-method, and the value you set the field to must be a hard-coded Python value
-(i.e., you can't set a field to be equal to some other field at the moment).
-
+method. To update a non-relation field, provide the new value as a constant.
 To update ``ForeignKey`` fields, set the new value to be the new model
 instance you want to point to. Example::
 
@@ -795,6 +793,8 @@ Just loop over them and call ``save()``::
     for item in my_queryset:
         item.save()
 
+.. versionadded:: 1.1
+
 Calls to update can also use :ref:`F() objects <query-expressions>` to update
 one field based on the value of another field in the model. This is especially
 useful for incrementing counters based upon their current value. For example, to