EPIC is the (E)nhanced (P)rogrammable (I)RC-II (C)lient

EPIC is 100% backwards compatible with ircII because EPIC is ircII. EPIC was originally built upon the ircII 2.6 client and has maintained faithfulness to remain current up to the 2.8.2 release.

EPIC is slightly larger than ircII-4.4 (about 40k on this system), but that is mostly because of the multitude of new features, the dual ANSI/K&R compliant function headers, and the large amount of re-written code in an attempt to make ircII faster, more efficient, and more powerful.

EPIC is derived directly from IRC-II which is currently maintained by Matthew Green, and includes in whole all the additions included in the “plus” clients by Jeremy Nelson and all of the modifications in the “mod” clients by Jake Khuon. EPIC is currently maintained by EPIC Software Labs (ESL), comprised of Jeremy Nelson, Jake Kuhon, Robert Chady, and a cast of a dozen others.