unreleased
==========

Features
--------

Bug Fixes
---------

- HTTPException's accepts a detail kwarg that may be used to pass additional
  details to the exception. You may now pass objects so long as they have a
  valid __str__ method. See https://github.com/Pylons/pyramid/pull/2951 

Deprecations
------------

Backward Incompatibilities
--------------------------

Documentation Changes
---------------------