Stockfish 6 is now available!
This release adds support for Syzygy endgame tablebases, and is 50 ELO stronger than Stockfish 5 in self play.
We recommend that you download Syzygy bases via torrent from here: http://oics.olympuschess.com/tracker/index.php
Stockfish 6 binaries are available here: http://stockfishchess.org/download/