Prepare for beta5.

Author: ipanova

CHANGES.rst

@@ -12,3 +12,37 @@ Changelog
     WARNING: Don't drop the next directive!
 
 .. towncrier release notes start
+
+4.0.0b5 (2019-07-04)
+====================
+
+
+Bugfixes
+--------
+
+- Add 'Docker-Content-Digest' header to the response headers.
+  `#4646 <https://pulp.plan.io/issues/4646>`_
+- Allow docker remote whitelist_tags to be unset to null.
+  `#5017 <https://pulp.plan.io/issues/5017>`_
+- Remove schema1 manifest signature when calculating its digest.
+  `#5037 <https://pulp.plan.io/issues/5037>`_
+
+
+Improved Documentation
+----------------------
+
+- Switch to using `towncrier <https://github.com/hawkowl/towncrier>`_ for better release notes.
+  `#4875 <https://pulp.plan.io/issues/4875>`_
+- Add an example to the whitelist_tag help text
+  `#4994 <https://pulp.plan.io/issues/4994>`_
+- Add list of features to the docker landing page.
+  `#5030 <https://pulp.plan.io/issues/5030>`_
+
+
+Misc
+----
+
+- `#4572 <https://pulp.plan.io/issues/4572>`_, `#4994 <https://pulp.plan.io/issues/4994>`_, `#5014 <https://pulp.plan.io/issues/5014>`_
+
+
+----