Software Update Manager for SAP HANA (SUM4HANA) is the tool for automated update of SAP HANA systems managed from inside your SAP HANA studio (see information on SAP Service Marketplace - logon required).
SAP HANA related use cases
SUM acts on application level:
SUM updates SAP NetWeaver Application Server running on SAP HANA database
SUM updates SAP NetWeaver-based applications running on SAP HANA, such as
SAP NetWeaver BW
SAP enhancement package 6 for SAP ERP 6.0, version for SAP HANA
Both tools consume a stack.xml file that was calculated by the Maintenance Optimizer (MOpz) as part of a Maintenance Transaction in SAP Solution Manager, and software packages downloaded from SAP Service Marketplace (see service.sap.com/mopz - login required)