SAP Kernel upgrade from 700 to 720

Dear all,

What advices can you give for Kernel upgrade ( 700 - > 720 ) on AIX 64BIT UNICODE ?

I have done before just  Kernel upgrade, but just the packages upgrade, e.g. from 700 package 190 to 333, but I think now this upgrade from 700 to 720 will be a bit different ? Or the procedure is the same ? I just download the new packages replace with the old ones ?

Thanks in advance,

J.