"Hardware Support Retired In This Release" of OS - what does that mean?

This is probably an obvious question, but I want to make absolutely
certain. The Release Notes for T64 v5.1B say:

"Support for the following storage array controllers is retired in this
release of the operating system: .... HSZ70"

So - I can't install T64 v5.1B on a system attached to an array that
contains HSZ70 controllers because there is no support for that
controller in this *specific* version - 5.1B - correct?

Thanks!

Judith Reed