2 files changed, 21 insertions, 11 deletions
diff --git a/docs/narr/hooks.rst b/docs/narr/hooks.rst
index b22b31bf9..d21edc7b4 100644
--- a/docs/narr/hooks.rst
+++ b/docs/narr/hooks.rst
@@ -116,14 +116,6 @@ callable:
 
 .. note::
 
-   Both :meth:`pyramid.config.Configurator.add_notfound_view` and
-   :class:`pyramid.view.notfound_view_config` are new as of Pyramid 1.3.
-   Older Pyramid documentation instructed users to use ``add_view`` instead,
-   with a ``context`` of ``HTTPNotFound``.  This still works; the convenience
-   method and decorator are just wrappers around this functionality.
-
-.. warning::
-
    When a Not Found View callable accepts an argument list as described in
    :ref:`request_and_context_view_definitions`, the ``context`` passed as the
    first argument to the view callable will be the
@@ -131,6 +123,13 @@ callable:
    available, the resource context will still be available as
    ``request.context``.
 
+.. warning::
+
+   The :term:`Not Found View` callables are only invoked when a
+   :exc:`~pyramid.httpexceptions.HTTPNotFound` exception is raised. If the
+   exception is returned from a view then it will be treated as a regular
+   response object and it will not trigger the custom view.
+
 .. index::
    single: forbidden view
 
@@ -210,6 +209,13 @@ Here's some sample code that implements a minimal forbidden view:
    whether the ``pyramid.debug_authorization`` environment setting is true or
    false.
 
+.. warning::
+
+   The :term:`forbidden view` callables are only invoked when a
+   :exc:`~pyramid.httpexceptions.HTTPForbidden` exception is raised. If the
+   exception is returned from a view then it will be treated as a regular
+   response object and it will not trigger the custom view.
+
 .. index::
    single: request factory
 
@@ -744,7 +750,9 @@ The API that must be implemented by a class that provides
           """ Accept the resource and request and set self.physical_path and
           self.virtual_path """
           self.virtual_path =  some_function_of(resource, request)
+          self.virtual_path_tuple =  some_function_of(resource, request)
           self.physical_path =  some_other_function_of(resource, request)
+          self.physical_path_tuple =  some_function_of(resource, request)
 
 The default context URL generator is available for perusal as the class
 :class:`pyramid.traversal.ResourceURL` in the `traversal module
diff --git a/docs/narr/viewconfig.rst b/docs/narr/viewconfig.rst
index 7cb8e0306..3b683ff79 100644
--- a/docs/narr/viewconfig.rst
+++ b/docs/narr/viewconfig.rst
@@ -252,7 +252,7 @@ Non-Predicate Arguments
     def myview(request):
       ...
 
-  Is similar to doing::
+  Is similar to decorating the view callable directly::
 
     @view_config(...)
     @decorator2
@@ -260,8 +260,10 @@ Non-Predicate Arguments
     def myview(request):
       ...
 
-  All view callables in the decorator chain must return a response object
-  implementing :class:`pyramid.interfaces.IResponse` or raise an exception:
+  An important distinction is that each decorator will receive a response
+  object implementing :class:`pyramid.interfaces.IResponse` instead of the
+  raw value returned from the view callable. All decorators in the chain must
+  return a response object or raise an exception:
 
   .. code-block:: python