Back to development: 4.0.4

[ci skip]

CHANGES.rst

@@ -1,6 +1,22 @@
 Changelog
 =========
 
+4.0.4 (unreleased)
+------------------
+
+Breaking changes:
+
+- *add item here*
+
+New features:
+
+- *add item here*
+
+Bug fixes:
+
+- *add item here*
+
+
 4.0.3 (2018-10-10)
 ------------------
 

src/icalendar/__init__.py

@@ -1,5 +1,5 @@
 # -*- coding: utf-8 -*-
-__version__ = '4.0.3'
+__version__ = '4.0.4.dev0'
 
 from icalendar.cal import (
     Calendar,