Firmware __exclusive__ | Fortigate

Firmware usually follows a major.minor.patch structure (e.g., FortiOS 7.2.5).

Fortinet releases FortiOS as a single firmware image file (typically with an .out extension) that is model‑specific. A firmware image for a FortiGate‑100F will not work on a FortiGate‑60F, even if they run the same FortiOS version number. Always download the correct image for your exact hardware model from the official Fortinet Support site. fortigate firmware

Does your old FortiGate-60E support FortiOS v7.6? Older models hit "End of Engineering" (EOE) status and cannot run newer firmware. Check the Fortinet Product Lifecycle page. Firmware usually follows a major

Protecting against newly discovered vulnerabilities. fortigate firmware

Steps to downgrade: