Traktor Pro. (Source: Native Instruments)
Traktor Pro 3.1 introduces a number of new features in addition to the standard stability improvements and bug fixes. Screen layout options now include both a parallel waveform view and a single-deck view. DJs who use the Kontrol S8 and D2 now have the option of custom-mapping their controllers.
Native Instruments has also upgraded the firmware for the Kontrol S4, allowing the controller to be used as a standalone mixer with no laptop needed.
Traktor Pro 3.1 is a free upgrade for Traktor Pro 3 owners.