Pega CDH upgrade from 7.x to 8.6
While upgrading Pega CDH application from v7.2X to v8.6 , can we upgrade pega base prpc v7.2X directly to v8.6 and then we proceed with CDH upgrade from 7.2x to 8.6 or do we need an interim upgrade step , where we upgrade the base PRPC to some intermediate version, then bring the CDH to that intermediate version and then continue to upgrade to final 8.6 version.