I have the most recent server from https://github.com/HerculesWS/Hercules. I downloaded the client from http://hercules.endlessro.net/ (2013-12-23). I've set up the server according to this guide here: http://herc.ws/board/topic/968-guide-how-to-setup-hercules/, and the client I've been told...
I stumbled across this which led me to look at the .h file which lead me to the conclusion that I should be AOK to use the client version dated 2014, 04, 16.
I fully intend to do some google searching on the matter hoping to stumble upon the full client version which I will then put to use, but...