Post-release version bump to a4+
diff --git a/README.rst b/README.rst
index 41f809b..b6d744d 100644
--- a/README.rst
+++ b/README.rst
@@ -1,5 +1,5 @@
-This is Python version 3.7.0 alpha 4
-====================================
+This is Python version 3.7.0 alpha 4+
+=====================================
 
 .. image:: https://travis-ci.org/python/cpython.svg?branch=master
    :alt: CPython build status on Travis CI