SAP Security Guide (ECC 6.0 & BW on HANA)

Hello Guru's,

I am trying to get the security guide of sorts that might tell us the differences between versions or support packs, release notes when doing upgrades?

I have looked all over the place and google indicates that there is something that exist in sap.help but I can’t find anything.

We are trying to upgrade from

1) ECC 6.0 sp11 to sp14

2)BW on HANA 7.3 sp7 to 7.4 sp12