diff --git a/README.rst b/README.rst
index 5d7dcd1a..c0476754 100644
--- a/README.rst
+++ b/README.rst
@@ -54,6 +54,17 @@ The client's features include:
  * pluggable architecture
 
 
+Versioning
+----------
+
+There are two branches for development - `master` and `0.4`. Master branch is
+used to track all the changes for Elasticsearch 1.0 and beyond whereas 0.4
+tracks Elasticsearch 0.90.
+
+Releases with major version 1 (1.X.Y) are to be used with Elasticsearch 1.0 and
+later, 0.4 releases are meant to work with Elasticsearch 0.90.X.
+
+
 License
 -------