We are planning to upgrade build.webkit.org to latest buildbot. In buildbot 0.9 onwards, Authentication and authorization modules are completely revamped. buildbot.status.web.auth and buildbot.status.web.authz classes are gone. We should adapt to new way of authorization and authentication. References: http://docs.buildbot.net/2.8.4/developer/cls-auth.html https://docs.buildbot.net/2.8.4/manual/configuration/www.html#authorization-rules