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FortiOS is Fortinet’s operating system used in their hardware, such as the Fortigate firewall and switches. It is based on Linux.

Release Released End of Engineering Support End of Support
7.4 3 weeks and 2 days ago
(11 May 2023)
Ends in 2 years and 11 months
(11 May 2026)
Ends in 4 years and 5 months
(11 Nov 2027)
7.2 1 year and 2 months ago
(31 Mar 2022)
Ends in 1 year and 10 months
(31 Mar 2025)
Ends in 3 years
(30 Sep 2026)
7.0 2 years ago
(30 Mar 2021)
Ends in 10 months
(30 Mar 2024)
Ends in 2 years and 4 months
(30 Sep 2025)
6.4 3 years ago
(31 Mar 2020)
Ended 2 months ago
(31 Mar 2023)
Ends in 1 year and 4 months
(30 Sep 2024)
6.2 4 years ago
(28 Mar 2019)
Ended 1 year and 2 months ago
(28 Mar 2022)
Ends in 3 months and 3 weeks
(28 Sep 2023)
6.0 5 years ago
(29 Mar 2018)
Ended 2 years ago
(29 Mar 2021)
Ended 8 months ago
(29 Sep 2022)

Fortinet offers the following major lifecycle milestones:

  1. End of Order (EOO): is last date on which a product may be ordered
  2. Last Service Extension Date (LSED): The last date at which a service extension is accepted for an existing contract, for a hardware or software product. This is 12 months before the EOS date for most products, and 90 days after the End-of-life notification for stand-alone services.
  3. End of Engineering Support for Software (EOES): The date beyond which Fortinet no longer commits to provide engineering support for software. After this date the software enters a must-fix support phase, during which, maintenance builds will only be produced for industry-wide critical issues and PSIRT vulnerabilities. The EOES date is generally 36 months after the GA date.
  4. End of Support Date (EOS): Fortinet will not sell, manufacture or improve the product after this date and is under no obligation to provide support services. In general the EOS takes place as follows:
    • Hardware - 60 months after the EOO Date
    • Software - 54 months after the GA date
    • Stand-alone Services – on the service contract termination date

This page tracks the End of Engineering Support and End of Support dates for FortiOS. The support website for Fortinet requires a free FortiCloud account, which can be created here

You can check the version that you are currently using by running:
get system status

You can submit an improvement to this page on GitHub :octocat: . This page has a corresponding Talk Page.

A JSON version of this page is available at /api/fortios.json. See the API Documentation for more information. You can subscribe to the iCalendar feed at /calendar/fortios.ics.