Upgrade from 9.0 Build 9043

Upgrade from 9.0 Build 9043

Please can I get advise on how to upgrade from the above version to 912x i.e can i just do an upgrade directly to 9120 or I have to upgrade in patches to 9049 then 9100 and then 9121
                New to ADManager Plus?

                  New to ADSelfService Plus?