Here are the changes from Pyramid 1.1b4:

Features
--------

- Added the ``pyramid.renderers.null_renderer`` object as an API.  The
  null renderer is an object that can be used in advanced integration
  cases as input to the view configuration ``renderer=`` argument.
  When the null renderer is used as a view renderer argument, Pyramid
  avoids converting the view callable result into a Response object.
  This is useful if you want to reuse the view configuration and
  lookup machinery outside the context of its use by the Pyramid
  router.  This feature was added for consumption by the
  ``pyramid_rpc`` package, which uses view configuration and lookup
  outside the context of a router in exactly this way.
  ``pyramid_rpc`` has been broken under 1.1 since 1.1b1; adding it
  allows us to make it work again.

- Change all scaffolding templates that point to
  docs.pylonsproject.org to use ``/projects/pyramid/current`` rather
  than ``/projects/pyramid/dev``.

Internals
---------

- Remove ``compat`` code that served only the purpose of providing
  backwards compatibility with Python 2.4.

- Add a deprecation warning for non-API function
  ``pyramid.renderers.renderer_from_name`` which has seen use in the
  wild.

- Add a ``clone`` method to ``pyramid.renderers.RendererHelper`` for
  use by the ``pyramid.view.view_config`` decorator.

Documentation
-------------

- Fixed two typos in wiki2 (SQLA + URL Dispatch) tutorial.

- Reordered chapters in narrative section for better new user
  friendliness.

- Added more indexing markers to sections in documentation.

More
----

A "What's New In Pyramid 1.1" document exists at
http://docs.pylonsproject.org/projects/pyramid/1.1/whatsnew-1.1.html .

You will be able to see the 1.1 release documentation (across all
alphas and betas, as well as when it eventually gets to final release)
at http://docs.pylonsproject.org/projects/pyramid/1.1/ .

You can install it via PyPI:

  easy_install Pyramid==1.1

Enjoy, and please report any issues you find to the issue tracker at
https://github.com/Pylons/pyramid/issues

Thanks!

- C

EXISTING AKHET APPLICATIONS:
if you don't want to automatically upgrade when the time comes, please
set version constraints in your application now:
    Akhet>=1.0, <=1.0.99
    pyramid>=1.0a10, <=1.0.99

--
Mike Orr <sluggos...@gmail.com>