Update changelog

CHANGES.rst

@@ -1,12 +1,56 @@
-Unreleased
-==========
+Next release
+============
 
 Features
 --------
 
 - The ``authz``, ``identity``, and ``notification`` modules are now
   exposed as public API on the ``annotator`` page global.
 
+- The ``notifier``, ``identityPolicy`` and ``authorizationPolicy`` are now
+  retrieved from component registry. It should now be possible to register
+  alternative implementations.
+
+- Performance of the highlighter should be slightly improved.
+
+- Showing the viewer with a mouse hover should be much faster when there are
+  many overlapping highlights. (#520)
+
+- The ``getGlobal()`` function of the ``util`` module has been removed and
+  Annotator should now work with Content Security Policy rules that prevent
+  ``eval`` of code.
+
+- The ``markdown`` extension has been upgraded to require and support version
+  1.0 or greater of the Showdown library.
+
+Bug Fixes
+---------
+
+- Fix a bug in the ``ui.filter`` extension so that the ``filters`` option
+  now works as specified.
+
+- Make the highlighter work even when the global ``document`` symbol is not
+  ``window.document``.
+
+- Fix an issue with the editor where adding custom fields could result in
+  fields appearing more than once. (#533)
+
+- With the ``autoViewHighlights`` options of the ``viewer``, don't show the
+  viewer while the primary mouse button is pressed. Before, this prevention
+  applied to every button except the primary button, which was not the intended
+  behavior.
+
+Documentation
+-------------
+
+- Fix some broken links.
+
+- Fix some example syntax.
+
+- Add example markup in the documentation for the ``document`` extension.
+
+
+
 2.0.0-alpha.2 (2015-04-24)
 ==========================