About GateFirmware

Sources

What the status labels mean

Up to date

The automatic check ran in the last day and succeeded.

Verified

Checked by hand against Fortinet, not by the automatic check.

Refresh delayed

More than a day since the last successful check. What you see is still the last good data.

Check failed

The last automatic attempt failed. The page keeps showing the last good data and says when it was from.

What’s ours and what’s Fortinet’s

• Every build number, date and advisory comes from Fortinet, with a link to the source wherever it appears.
• The plain-English summaries, and whether a release-note change counts as breaking, an action or worth knowing, are our reading of Fortinet’s documents.
• Where models share hardware, a model page can show its sibling’s drawing and says so.
• GateFirmware is independent and not affiliated with or endorsed by Fortinet. Always read the release notes before upgrading production.

Change log

Releases, support milestones, advisories and updates to this site, newest first. Built from the same data the rest of the site uses.

Coming up

Why it exists

Fortinet publishes what you need to plan FortiGate firmware, but it’s spread across a recommended-releases article, a set of release notes for every build, FortiGuard security advisories, Customer Support Bulletins and a Product Life Cycle table behind a support login.

GateFirmware brings that together for each model, in plain English, with a link back to Fortinet’s own document wherever a fact appears.

What it does

• What should I run?Firmware recommendations

  The release Fortinet recommends for each model and VM it lists, the latest build on that branch, the latest the model can run and any advisories still open.

  Find your model

• What if I upgrade?Upgrade guidance

  What changes between two builds: the breaking changes, required actions, security fixes and known issues from Fortinet’s release notes.

  Plan an upgrade

• How long have I got?Lifecycle tracking

  End of order, last renewal and end of support dates for every FortiGate, plus a check for a whole list of units. FortiOS branch dates are on the Firmware page.

  Check support dates

How the information is kept up to date

• An automatic check runs every morning. It looks for new FortiOS builds and release notes, changes to Fortinet’s recommended releases and FortiOS support dates, new FortiGuard advisories and CISA’s list of exploited vulnerabilities.
• A change is only recorded once it’s confirmed in a Fortinet source. Other sites can prompt a check but never change the data, and CISA’s list is only used to mark a vulnerability as exploited.
• Hardware dates come from Fortinet’s Product Life Cycle export, downloaded from the support portal each month. Every dated model is checked against it.
• Every check is recorded. If one fails, the site keeps showing the last good data and the status at the top of each page says so.
• Summaries, and whether a change counts as breaking, an action or worth knowing, are our reading of Fortinet’s documents.

The full source list, check schedule and change log are on How we check.

Relationship to Fortinet

GateFirmware is not an official Fortinet product and isn’t endorsed by Fortinet. Fortinet’s documents are the authority: read the release notes before a production change, and follow guidance from your Fortinet SE, Professional Services or TAC where it applies.

Fortinet, FortiGate, FortiOS and FortiGuard are trademarks of Fortinet, Inc.

Privacy

There are no accounts, adverts or tracking cookies. To see which pages are useful, the site counts visits with Vercel Web Analytics. Vercel hosts the site and processes this data on our behalf.

For each page view it records the page, the site you came from, your rough location, your browser, operating system and device type. It doesn’t set cookies. Visits are told apart by a value worked out from the request, which is thrown away after 24 hours, so nobody can be followed from one day to the next. We only see totals, and the reports cover the last month.

The site also saves a few choices in your browser, such as dark mode, the features you picked in the upgrade planner and ticked checklist items. They stay on your device.

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If your browser sends a Global Privacy Control signal, analytics stays off.

Fortinet’s own resources

• Recommended releases for FortiOS (opens in a new tab)Fortinet Community
• FortiOS release notes (opens in a new tab)Fortinet Document Library
• Upgrade Path Tool (opens in a new tab)Fortinet Document Library
• PSIRT advisories (opens in a new tab)FortiGuard Labs
• Product Life Cycle (opens in a new tab)Support portal, login needed