SDLMAME
The latest version is 0.118u1. Multithreading behavior is improved on *IX systems, and be sure to see the note below about CFG files.

The stable version is (also) 0.118. NOTE: if you are upgrading directly from 0.117 or earlier, please note that you must delete all .cfg files and re-configure your controllers.

NOTE: The WolfMAME patches (wolfxxx.diff and mamerandxxx.diff) do apply cleanly to SDLMAME, although I can’t officially support that configuration (it’s too much extra support load for me). If you’re on Linux/Mac and want to compete on MARP, you might give it a try though. Like this:

(copy the 2 diffs in to your sdlmame folder)
% cd sdlmamexxx
% diff -p1 % diff -p1

Related links:
[ Arcade Multi Emus ][ Arcade Single Emus ]