You should be able to go straight to the latest version, see https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/update/6.x-or-7.x-to-7.10.md https://gitlab

You should be able to go straight to the latest version, see https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/update/6.x-or-7.x-to-7.10.md https://gitlab.com/gitlab-org/gitlab-ce/blob/master/doc/upda...