Upgrades Does not nearly everything in the field get upgraded over time? And with the newest they get tweaked and augmented to improve reliability, accuracy, ease of use, price point, etc. Good healthcare is solidly based on continuous improvement. All players in this COVID field are striving for better. SONA is no different other than the fact it is starting at a higher place to begin with. This will sweeten, the results will improve, and their technology will continue to impress.