I have an IBM Flex with 2x FC5022 SAN switches that only support up to 7.4.1c (They likely support 7.4.1d but this hasn't been issued by Lenovo/IBM yet).
I also have a pair of B300's that do support 7.4.1.d.
What is the best practice here? Do we upgrade to 7.4.1c so they are both at the same level or do we go to the latest supported based on each model as long as they are cross compatable?
v7.4.1c is the same as v7.4.1d excepted Closed Defect, but this don't have any impact to partecipate in the same Fabric.
for details about closed Defect refer the release Notes.