Features of each firmware update

I want to know if exist a history/whatsnew of all
firmware versions of the Sony DRU720A.
Example, JY03 to JY08 changes / add or quit features, etc.
In sonystorage.com support no exist detailed info about
the each firmware update.
If anyone know any site with the full firmware released
info, please tell me that.
Thanks friends.


Only Sony would know all the details. If they haven’t published it, no one else knows.

For a drive that old, just make sure you’re using the latest.