release notes [ci skip]

Author: alimanfoo

docs/release.rst

@@ -6,12 +6,23 @@ Release notes
 2.3.0 (Work in Progress)
 ------------------------
 
+Enhancements
+~~~~~~~~~~~~
+
+* Support has been added for structured arrays with sub-array shape and/or nested fields. By
+  :user:`Tarik Onalan <onalant>`, :issue:`111`, :issue:`296`.
+
 Maintenance
 ~~~~~~~~~~~
 
 * CI and test environments have been upgraded to include Python 3.7, drop Python 3.4, and
-  upgrade all package requirements. :issue:`308`.
+  upgrade all pinned package requirements. :issue:`308`.
 
+* Failing tests related to pickling/unpickling have been fixed. By :user:`Ryan Williams <ryan-williams>`,
+  :issue:`273`, :issue:`308`.
+
+Acknowledgments
+~~~~~~~~~~~~~~~
 
 .. _release_2.2.0: