diff --git a/twython/twython.py b/twython/twython.py
index 49c2f65..9a81ce4 100644
--- a/twython/twython.py
+++ b/twython/twython.py
@@ -82,7 +82,7 @@ class TwythonRateLimitError(TwythonError):
 
 class Twython(object):
     def __init__(self, app_key=None, app_secret=None, oauth_token=None, oauth_token_secret=None, \
-                headers=None, callback_url=None, twitter_token=None, twitter_secret=None, proxies=None, version='1'):
+                headers=None, callback_url=None, twitter_token=None, twitter_secret=None, proxies=None, version='1.1'):
         """Instantiates an instance of Twython. Takes optional parameters for authentication and such (see below).
 
             :param app_key: (optional) Your applications key
@@ -259,7 +259,7 @@ class Twython(object):
             raise TwythonError('This function must be called after an API call.  It delivers header information.')
         if header in self._last_call['headers']:
             return self._last_call['headers'][header]
-        return None
+        return self._last_call
 
     def get_authentication_tokens(self):
         """Returns an authorization URL for a user to hit.