The FortiGate 200D supports up to FortiOS 6.0.x .
go to support.fortinet.com, Log in and go to downloads -> Fiirmware Images. There, you can get the upgrade path for any Fortigate.
⚠️ Critical: The FortiGate 200D entered and End of Support (EOS) in 2023. Fortinet no longer releases: fortigate 200d latest firmware
You cannot skip versions when upgrading legacy enterprise firewalls. Moving straight from an early release like FortiOS 5.0 to 6.0.17 without an intentional pathway will break the underlying configuration database file.
Known for its high port count, it features up to 54 gigabit Ethernet (RJ45) ports and multiple 1GbE SFP slots. The FortiGate 200D supports up to FortiOS 6
For precise steps tailored to your specific current build, use the Fortinet Upgrade Path Tool . Best Practices for 200D Upgrades
: Engineering support for the 6.0 branch ended in 2021. Maintenance builds for this version are no longer produced. ⚠️ Critical: The FortiGate 200D entered and End
✅ Suitable for isolated internal segmentation or lab use only. ❌ Not recommended for production edge firewalls in 2026.
The final firmware versions are stable but not without their own set of known issues.
Disclaimer: Firmware version numbers are accurate as of the last support bulletin for FGT-200D. Always check the Fortinet Support Portal for any emergency PSIRT backports, though none are expected.