I have a ReadyNAS Pro 6
But I have not received any message from my NAS that there was a firmware update.
I get an E-Mail from my NAS everytime it runs it scrubbing. But have not received any messages about firmware updates.
I just logged in to my NAS and asked it to check for updates. And there was one.
If they want to get people to update the firmware. Then they should inform people that there is updates.