Update changelog with 2.3.1

vshlapakov · vshlapakov · commit 31be8cb248d8 · 2020-03-13T15:52:02.000+03:00
diff --git a/CHANGES.rst b/CHANGES.rst
@@ -1,6 +1,13 @@
 Release notes
 =============
 
+2.3.1 (2020-03-13)
+------------------
+
+- update msgpack dependency
+- drop official support for Python 3.4
+- improve documentation, address a few PEP8 complaints
+
 2.3.0 (2019-12-17)
 ------------------
 
