Updated version in Readme

Author: vladar

README.md

@@ -7,7 +7,7 @@ and the [reference implementation in JavaScript](https://github.com/graphql/grap
 
 This implementation will follow JavaScript version as close as possible until GraphQL itself stabilizes.
 
-**Current status**: version 0.2 supports all features described by specification.
+**Current status**: version 0.4 supports all features described by specification.
 _corresponding graphql-js commit_: cf50cc3a304faff9a4215cd121a548e65794a089 (v0.4.2 2015-08-14).
 
 ## Table of Contents