Bump version to 0.9

Author: rafalp

CHANGELOG.md

@@ -1,8 +1,8 @@
 # CHANGELOG
 
-## Unreleased
+## 0.9.0 (2019-12-11)
 
-- Updated `graphql-core-next` to `graphql-core` 3.x.
+- Updated `graphql-core-next` to `graphql-core` 3.
 
 
 ## 0.8.0 (2019-11-25)

setup.py

@@ -26,7 +26,7 @@
     long_description=README,
     long_description_content_type="text/markdown",
     license="BSD",
-    version="0.8.0",
+    version="0.9.0",
     url="https://github.com/mirumee/ariadne",
     packages=["ariadne"],
     include_package_data=True,