Here are the features this version included:
Official SAP software, including legacy versions of the GUI, must be downloaded through the SAP Support Portal Access Requirements : To download any software from SAP, you generally need an Sap Gui 720 Download -
SAP GUI 7.20 was released to general availability in 2011 as part of SAP’s strategy to modernize the user experience without migrating to SAP Fiori. It served as the front-end client for SAP ERP 6.0 and SAP NetWeaver 7.0 systems. Here are the features this version included: Official