You should typically aim for the latest patch release in the 6.0 branch (e.g., FortiOS 6.0.18).
Modern web traffic (encrypted SSL/TLS 1.3) requires high CPU usage for deep packet inspection, which the 200D cannot handle, leading to severe network slowdowns. 5. Alternatives: When to Retire the 200D
While the FortiGate 200D can be updated to the final firmware, this is merely a temporary measure. Keeping the firmware updated protects against known older bugs, but it does not protect against modern threats. For any production environment, immediate migration to a newer model is strongly recommended.
: This model is currently in its end-of-life cycle. While it may still receive limited security patches (Mature Firmware), it no longer receives new features (Feature Firmware) [15, 21, 22]. Maturity Level : 6.0.x is considered a
To help you secure your network or plan your transition, please0.18