ehp8 upgrade and new SAP standard appications (Things to know as an ABAPer)

Is there perhaps a list of all the transactions that SAP has released for HCM, FI and Auths? and all relevant departments?

I find that we have to write z applications for Auths where new functionality was pushed down from the EHP8 upgrade but Auths does not know or use these new applications that have a richer feature set than the previous applications that they use.

What are some of the things that the ABAPer need to know in this regard?