S/4HANA Finance 1503 vs. SAP S/4HANA, on-premise edition 1511

Hi

What is the main difference between S/4 Finance and SAP S/4 HANA?

Does SAP S/4 HANA include S/4 ?

What happens when we upgrading S/$ finance with SAP S/4? SAP S/4 replaces finance or not?

In case we have master data for application modules. except FI, should we run migration after such upgrade?

Why some country localizations are not covered by 1511 version? ISrael for example.

Than you.

Regards

Vladimir Kogan