Hack is an open source font that is optimized for use in source code and version 2.0 of this font has officially been released. It is designed to appear best in the 8px-12px range and displays extremely well on high definition devices. It improves legibility by using minimal stroke contrast, large x-height, and wide apertures. It helps functionality by using fills in zero counters, curved tails on select glyphs, rounded square alphabetic points, and semi-bold punctuation weight. Finally it’s free to modify, print, distribute, and use commercially. Hack can be downloaded from Source Foundry.