--- stage: Manage group: Authentication and Authorization info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/product/ux/technical-writing/#assignments remove_date: '2023-08-15' redirect_to: '../administration/auth/index.md' --- # CAS OmniAuth provider (removed) **(FREE SELF)** This feature was [deprecated](https://gitlab.com/gitlab-org/gitlab/-/issues/369127) in GitLab 15.3 and [removed](https://gitlab.com/gitlab-org/gitlab/-/issues/369128) in 16.0.