Fortinet provides a structured support window for each software release. The journey of a FortiOS version includes the General Availability (GA) date, the End of Engineering Support (EOES) , and ultimately the End of Support (EOS) . In a significant update announced in March 2026, Fortinet extended the support period for v7.4 and v7.6 by 12 months. v7.4 EOES was extended from May 2026 to May 2027 , while v7.6 EOES moved from September 2027 to July 2028 . This extension gives administrators crucial breathing room to plan their upgrades.
Before hitting "Upgrade," seasoned admins follow these steps: How to upgrade FortiGate firmware - the Fortinet Community! fortigate firmware
You cannot upgrade from a very old version (e.g., 6.0) directly to a very new one (e.g., 7.4). You must use the 0.5.1 to determine the intermediate versions required. 4. How to Upgrade FortiGate Firmware There are two primary ways to upgrade FortiGate firmware : Method 1: GUI (Web-Based Manager) Log into the FortiGate GUI . Go to System > Firmware . Fortinet provides a structured support window for each
