Upgrade finished, please report issues to https://forum.duniter.org/t/interventions-et-indisponibilite-des-forums-et-de-gitlab/7131/190
Gitlab will be upgraded to latest version tonight around 1 am. Please refer to https://forum.duniter.org/t/interventions-et-indisponibilite-des-forums-et-de-gitlab/7131/193 for related discussions