This article provides step-by-step guidance to upgrade FortiClient EMS from version 7. 3 offline in an air-gapped environment (no internet connectivity). When a later patch of the current EMS version is available, by default, EMS schedules an upgrade at a date between 45 to 52 days in the future. This change provides numerous benefits, including improved architecture and flexibility. Consider performing a full server backup or taking a VM snapshot if possible. When EMS manages. To upgrade EMS by executing the installation file from the remote machine:execute upgrade ems --remote. file <file_path> --remote. bin upgrade file is downloaded (e.