HP SMH Upgrade from 2.1.10.186 to latest available version

Hi,

I have a ML370 G5 that is currently running the above veriosn of SMH. I would like to upgrade to the latest version available for Windows Server 2003 (32 bit) which I believe is 7.2.4.1.

Two questions;

Is this the highest available version?

Is there an upgrade path that should be adhered to or can you just install the latest?

Many Thanks