begin work on v2.1.0
diff --git a/docs/conf.py b/docs/conf.py
index 201d012..c8f9644 100644
--- a/docs/conf.py
+++ b/docs/conf.py
@@ -56,9 +56,9 @@
 # built documents.
 #
 # The short X.Y version.
-version = '2.0'
+version = '2.1'
 # The full version, including alpha/beta/rc tags.
-release = '2.0.0'
+release = '2.1.dev0'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.