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Beyond security patches, FortiOS 7.0.9 is characterized by its extensive bug fixes, which directly translate to operational stability. In high-availability (HA) clusters—a configuration used by most enterprises to ensure zero downtime—earlier 7.0 versions occasionally suffered from synchronization glitches and unexpected failovers. Version 7.0.9 introduced critical fixes to the HA heartbeat mechanisms, ensuring that backup units could seamlessly take over without data loss. fortigate 7.0.9