6TB RED difference firmware - 68L0BN1 vs 68MYMN1

HI all,
I have 15 discs and 6TB I want to ask what is the difference in these firmware?

WD60EFRX-68MYMN1
WD60EFRX-68L0BN1

What are the differences between them?

Thank you very much for your answers.

Hi,

This link will help you with your request.

Hello,
thank you but there is my case. This is obviously an old document from
2009! :frowning: