Release v0.9.0 (#143)

diff --git a/CHANGELOG.rst b/CHANGELOG.rst
index 5390245..e8b61c0 100644
--- a/CHANGELOG.rst
+++ b/CHANGELOG.rst
@@ -1,6 +1,18 @@
 Changelog
 =========
 
+v0.9.0
+------
+
+- Added ``service_account.Credentials.with_claims``. (#140)
+- Moved ``google.auth.oauthlib`` and ``google.auth.flow`` to a new separate package ``google_auth_oauthlib``. (#137, #139, #135, #126)
+- Added ``InstalledAppFlow`` to ``google_auth_oauthlib``. (#128)
+- Fixed some packaging and documentation issues. (#131)
+- Added a helpful error message when importing optional dependencies. (#125)
+- Made all properties required to reconstruct ``google.oauth2.credentials.Credentials`` public. (#124)
+- Added official Python 3.6 support. (#102)
+- Added ``jwt.Credentials.from_signing_credentials`` and removed ``service_account.Credentials.to_jwt_credentials``. (#120)
+
 v0.8.0
 ------
 
diff --git a/setup.py b/setup.py
index 76bceb8..aaa13de 100644
--- a/setup.py
+++ b/setup.py
@@ -31,7 +31,7 @@
 
 setup(
     name='google-auth',
-    version='0.8.0',
+    version='0.9.0',
     author='Google Cloud Platform',
     author_email='jonwayne+google-auth@google.com',
     description='Google Authentication Library',