Just recently I’ve found a new service from SAP: Innovation Discovery. THe service allows to find new functions in SAP very quickly, like EhP or AddOns. Plus you can find all functions that are in any EhP that is convenient.

Direct link: https://apps.support.sap.com/innovation-discovery/index.html

Or you can find it: https://service.sap.com/erp-ehp and there is orange button on the top “Innovation Discovery”.