A new output has been added, which will only trigger after two errors, and is reset by the same circuit as the primary output. This output will be slightly slower to trigger, but has a negligible chance of producing a false positive (whereas the primary output has a similarly tiny, but actually possible, chance of producing a false positive on rare occasions).
This new output is largely intended for situations where firing mishaps are not cheap (eg., launching large racks of drones, torpedoes, anything which takes work to replace, and is not just a standard weapons system).