FortiGate firmware upgrades are essential for maintaining a secure and efficient network. By following a methodical approach—backing up your configuration, checking the upgrade path, reviewing release notes, selecting the appropriate installation method, and having a rollback plan ready—you can perform firmware upgrades confidently with minimal risk of downtime or data loss. Remember that preparation is more important than speed: a properly planned upgrade takes time but keeps your network secure and stable.
Log into your FortiGate CLI (via SSH or console) and run:
Upgrading FortiGate firmware demands a calculated, step-by-step approach. Always prioritize finding the correct upgrade path, performing a full configuration backup, and testing the new version on a non-production unit first. This thorough preparation ensures your firewall's security and integrity, protecting your network for the long term. fortigate firmware download install
HA cluster members may be registered to different FortiCloud accounts or have mismatched license statuses.
Click on Support in the top menu, then select Firmware Download . FortiGate firmware upgrades are essential for maintaining a
: Within the Fabric Management or Firmware & Registration menus, releases are labeled to help you choose between cutting-edge "Feature" releases or stable, bug-fixed "Mature" releases.
Choose the downloaded .out file from your computer. Log into your FortiGate CLI (via SSH or
Every firmware release comes with Release Notes that detail resolved issues, known issues, behavioral changes, and special upgrade considerations. Read them thoroughly before committing to an upgrade.
Fortinet classifies firmware releases into two types, each with a different purpose:
There are no supported "Downgrade Paths" for FortiGate firmware. Downgrading is not supported and can cause any of the issues associated with not following a supported upgrade path, including configuration loss and boot failures.