Vendor EOL guides · Fortinet
Fortinet end-of-life dates: how FortiGate lifecycles work
By Nico De Muynck · Updated July 18, 2026
Quick answer
Fortinet's authoritative lifecycle list lives at support.fortinet.com (Product Life Cycle section). The core rule: hardware End of Support (EOS) generally falls 60 months after the End of Order (EOO) date — and firmware has its own, separate lifecycle you have to track too.
Fortinet's hardware milestones
| Milestone | Meaning |
|---|---|
| EOL notice | Published at least 90 days before the End of Order date |
| EOO | End of Order — last date the product can be purchased |
| LSED | Last Service Extension Date — last chance to extend support contracts, 12 months before EOS |
| EOS | End of Support — the hard stop, generally 60 months after EOO |
Note the naming difference from other vendors: at Fortinet, “EOS” means end of support (the final milestone), not end of sale. If your team mixes vendors, this is a common source of confusion — see EOL vs EOS vs EOSL.
Don't forget FortiOS: firmware has its own clock
A FortiGate can be years from hardware EOS while its firmware branch is already unsupported. A FortiOS release generally gets 36 months of engineering support from GA, then 18 more months of “must fix” (critical/security) support. Long-Term Support releases extend the total to 72 months. For an internet-facing firewall, the firmware date is arguably the more urgent one — an unsupported FortiOS build on a supported appliance is still an unpatched attack surface.
Where to check your model
1. The official lifecycle list at support.fortinet.com — log in and open the Product Life Cycle page for hardware and firmware tables.
2. EOL notices — Fortinet publishes per-product EOL bulletins with the exact EOO/EOS dates when discontinuation is announced.
3. Community summaries like endoflife.date/fortios for a quick FortiOS overview — useful for triage, but confirm against the official list before making decisions.
Two clocks per firewall is too many to track by hand
Put your FortiGates in EOL Tracking and get warned before both the hardware and firmware dates hit.
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