The soft and hardware on our D1 and D5 mixing consoles has been upgraded to version 4 The primary features of the package include extra configuration flexibility, expanded bussing and routing options, partial session loading, enhanced onboard effects and graphic equalisers, new snapshot features, additional monitoring functions, augmented aux and group buss control, and additional system options. http://www.digico.biz/docs/products/D5_Live.shtml http://www.digico.biz/docs/products/D1_Live.shtml