add changelog for #2985

CHANGES.txt

@@ -1,14 +1,32 @@
 unreleased
 ==========
 
-Features
---------
+Major Features
+--------------
+
+- The file format used by all ``p*`` command line scripts such as ``pserve``
+  and ``pshell``, as well as the ``pyramid.paster.bootstrap`` function
+  is now replaceable thanks to a new dependency on
+  `plaster <http://docs.pylonsproject.org/projects/plaster/en/latest/>`.
+
+  For now, Pyramid is still shipping with integrated support for the
+  PasteDeploy INI format by depending on the ``plaster_pastedeploy`` binding.
+
+  See https://github.com/Pylons/pyramid/pull/2985
 
 - Added an execution policy hook to the request pipeline. An execution
   policy has the ability to control creation and execution of the request
-  objects before they enter rest of the pipeline. This means for a given
-  request that the policy may create more than one request for retry
-  purposes. See https://github.com/Pylons/pyramid/pull/2964
+  objects before they enter rest of the pipeline. This means for a single
+  request environ the policy may create more than one request object.
+
+  The first library to use this feature is
+  `pyramid_retry
+  <http://docs.pylonsproject.org/projects/pyramid-retry/en/latest/>`.
+
+  See https://github.com/Pylons/pyramid/pull/2964
+
+Features
+--------
 
 - Support an ``open_url`` config setting in the ``pserve`` section of the
   config file. This url is used to open a web browser when ``pserve --browser``