Fortinet · FortiOS · Firewall Operating System
FortiOS 7.4
Supportedconfirmed confidence
Standard support runway
26 months remaining
> 24 months · EOS November 11, 2028
General availability
May 11, 2023
End of order
Not published
Last service extension
Not published
Engineering support ends
May 11, 2027
Lifecycle note
Fortinet announced in March 2026 that the FortiOS 7.4 engineering-support and support dates were extended by one year.
Source provenance
Last verified: September 9, 2026
- Fortinet Technical Tip: FortiOS End of Support change for FortiOS v7.4 and v7.6 — official-vendor-community
Related / replacement products
- FortiOS 7.6