Hello,
The latest firmware that was released for the Ultra SSD is the version 365A13F0 and you can manually update it from this kb:
http://kb.sandisk.com/app/answers/detail/a_id/10477/kw/ultra%20ssd%20firmware
if you have already this version then you can reinstall the same version on the ssd and you will get the message that you run the latest.
