Thankfully, the software does not just stop functioning (or so I have been told). There will just be no new updates, and you can not call in for tech support should something stop working. I am keeping my v21 until it dies, as the quantity of scans I need to do into transactions would be inefficient and time consuming to scan to a location, and then hope it gets added to the correct transaction (let alone having those documents on someone's personal device).