Prior to upgrading your FortiManager, please review the FortiManager Upgrade Guide in detail as it includes all of the necessary steps and associated details required to upgrade your FortiManager device or VM.
See the FortiManager Upgrade Guide in the Fortinet Document Library.
You can upgrade FortiManager 7.2.0 or later directly to 7.4.0.
Before upgrading FortiManager, check ADOM versions. Check the ADOM versions supported by the destination firmware and the current firmware. If the current firmware uses ADOM versions not supported by the destination firmware, upgrade ADOM versions in FortiManager before upgrading FortiManager to the destination firmware version.
For example, FortiManager 7.2 supports ADOM versions 6.4, 7.0, and 7.2, but FortiManager 7.4 supports ADOM versions 7.0, 7.2, and 7.4. Before you upgrade FortiManager 7.2 to 7.4, ensure that all ADOM 6.4 versions have been upgraded to ADOM version 7.0 or later. See the FortiManager Upgrade Guide in the Fortinet Document Library.
This section contains the following topics: