Apparently Dyson has changed the plug-in mechanism for accessories. However, I do not know from which model/year this is the case. An adapter is included in the accessories for this hoover. According to the description, accessories from previous models can be combined with the new technology. We do not have any old accessories ourselves and can therefore not confirm this. However, I have found the following link that describes the mentioned adapter a little better: http://shop.dyson.ch/de-CH... Perhaps this will help.