v0.9 • 2012-01-05 • initial release v1.0 • 2012-01-05 • added pawn promotion (to queen only) • added en passant tracking in FEN (FEN now complete) • added functions to convert internal position arrays into algebraic notation, and vice versa v1.1 • 2012-01-05 • added file and rank guides • added 'turn' class to all elements which need rotating v1.2 • 2012-01-07 • fixed a stupid bug related to castling, wherein pieces on 1 and 8 would turn to opposite castles v1.3 • 2012-01-07 • changed move data from GET to POST • move data is now one piece of data (fromx,fromy:tox,toy) • spaces are now