John Mueller, a Google representative announced on his Google+ that Google has dropped support for Authorship from August 29, 2014.
As per the announcement, you can see the major change in the algorithm. Now, the Google authorship images, profile photos cannot be seen as it has been revolutionized from the algorithm. At present, the Authorship has become more competitive because of the dramatic shift in the Google algorithm.
It has been removed from the search results interface and behind the scenes.
Get more Google authorship info at Seround Table site.