FortiOS 7.4
7.4
Os Release
· FortiOS Series
Is FortiOS 7.4 still maintained?
Yes. Fortinet actively maintains FortiOS 7.4. See Fortinet's lifecycle bulletin.
When do security fixes for FortiOS 7.4 stop?
Engineering fixes for FortiOS 7.4 — including security patches — stop on 2027-05-11. After that date, a device on this release cannot be patched against newly disclosed vulnerabilities without upgrading, which is the point that matters for KEV exposure and compliance.
What should I upgrade FortiOS 7.4 to?
Upgrade to a currently maintained Fortinet release. Check the release-train table on the vendor page for the nearest supported version.
FortiOS 7.4 Release Lifecycle
FortiOS 7.4 is a Fortinet FortiOS software release. Releases are maintained on a fixed schedule: Fortinet ships fixes and security patches until the release reaches end of engineering, after which a device must be upgraded to a maintained release to stay patchable. The dates below are milestones for the software train, not for any specific appliance — hardware running this release has its own separate lifecycle. Vendor support will continue until .
Lifecycle Milestones
| Lifecycle notice published | 3y 2mo ago | |
|---|---|---|
| End of software maintenance | in 10mo | |
| End of security vulnerability support | in 10mo | |
| Last date of support | in 2y 4mo |