It is 5.4 now. Truth is it is much worse than Brainfish because they modified the posted versions. Modified version was almost last in tests and real was second. LOL. Don't ask me why whey did it. I suggest real Brainfish! Have fun!
Ugly useless Zeus is basically private engine, please change section. latest version is 6.6 or 6.7. Also I want to know whether its legal to make a stockfish based engine as private. Zeus is clearly stockfish based engine.