Fixed #21587 -- Added a warning for changing default of RedirectView.permanent.

docs/internals/deprecation.txt

@@ -214,6 +214,10 @@ details on these changes.
 * The `cache_choices` option to :class:`~django.forms.ModelChoiceField` and
   :class:`~django.forms.ModelMultipleChoiceField` will be removed.
 
+* The default value of the
+  :attr:`RedirectView.permanent <django.views.generic.base.RedirectView.permanent>`
+  attribute will change from ``True`` to ``False``.
+
 .. _deprecation-removed-in-1.8:
 
 1.8

docs/ref/class-based-views/base.txt

@@ -222,6 +222,11 @@ RedirectView
         status code 301. If ``False``, then the redirect will use status code
         302. By default, ``permanent`` is ``True``.
 
+        .. deprecated:: 1.8
+
+            The default value of the ``permanent`` attribute will change from
+            ``True`` to ``False`` in Django 1.9.
+
     .. attribute:: query_string
 
         Whether to pass along the GET query string to the new location. If

docs/releases/1.8.txt

@@ -1097,6 +1097,13 @@ deprecated: you should rename your ``qn`` arguments to ``compiler``, and call
 ``compiler.quote_name_unless_alias(...)`` where you previously called
 ``qn(...)``.
 
+Default value of ``RedirectView.permanent``
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+The default value of the
+:attr:`RedirectView.permanent <django.views.generic.base.RedirectView.permanent>`
+attribute will change from ``True`` to ``False`` in Django 1.9.
+
 .. removed-features-1.8:
 
 Features removed in 1.8