does the latest rev works with 2015 client version without editing the packets??
by default, rAthena latest git hash version is using 2015-11-04aRagexe.exe client.. u don't need to edit the packets anymore.
but if u having problem with the unknown packet errors, perhaps it would be because of packet encryption keys.
look in the db/packet_db.txt & find these lines.
//packet_db_ver: 46
packet_db_ver: default
packet_keys_use: default
just change them to
packet_db_ver: 55
//packet_db_ver: default
packet_keys_use: default
and restart ur s