The FortiManager Release Notes communicate support for FortiOS versions that are available at the time of the FortiManager 7.4.0 release. For additional information about other supported FortiOS versions, please refer to the FortiManager compatibility chart in the Fortinet Document Library.
FortiManager 7.4.0 supports the following versions of FortiOS and FortiOS Carrier:
- 7.2.0 to 7.2.5
- 7.0.0 to 7.0.12