How to reconcile a new exe with the emulator?

[OmarAcero]

Someone could teach me to make compatible emulator with exes 2015-10 to more  .... currently only it supports exe 2015-05 ... what files of src i can edit for exaple : mmo.h... packets.h .. units.c ...?

 
I have the emulator hercules, last year and I 'm updating manually.... with the commits in the github 

 
Thank you for your help...