How Do I Update Firmware of Readycache

How do I update the firmware of my Readycache SSD?

I cannot find a firmware update in the support download webpage.

( I read about firmware version 2.0.0. Mine is version 1.0.0 )

There is no FW update available for readycache SSD. The difference between 1.0 and 2.0 was a hardware change, no functional difference. 

Do you know what the difference is in the hardware?

I cannot find this information anywhere.

it was a memory transition IIRC