Google has stopped using authorship completely, even for in-depth articles
Authorship is now officially and completely dead. Gary Illyes from Google said authorship is not used at all at Google anymore.
But didn’t Google stop using authorship in August 2014? Yes, they did, but Google did keep using them for in-depth articles.
Up until October 2015, Google recommended that you keep authorship on your pages, but that advice now seems to be out the window.
Gary Illys clearly said Google does not use authorship “at all.” He added, “We fixed that problem,” meaning the need for Google to use authorship.
Danny Sullivan, founding editor of Search Engine Land, asked how Google knows who wrote an article. Gary replied that Google knows by “reading” the content.