Version 0.3.0

HPGL improvements

• prn_hpgl
• fit_hpgl

Version 0.2.0

Raspberry GPIO port support

• RPi1 -> GPIO -> XY41xx
• RPi2 -> GPIO -> XY41xx

PC Parallel port support

• DOS -> LPTx -> XY41xx
• Linux PC -> /dev/parportx -> XY41xx
• FreeBSD PC -> /dev/ppix -> XY41xx

Version 0.1.0

PC Parallel port support

• DOS -> LPTx -> XY41xx
• Linux PC -> /dev/parportx -> XY41xx
• FreeBSD PC -> /dev/ppix -> XY41xx