DSON seems to be dead. And, DAZ have no 'business imperative' to update it, they must feel they have established a sufficiently independent ecosystem...

A work-around is to export clad figure from DS as FBX, which arrives rigged and posable, albeit with umpteen sub-rigs.

( Position / Pose using first sub-rig, 'parent' all the others to this without delay as, IMHO, Poser prefers 'uncluttered'... )

This work-flow was inspired by an excellent exposition on Rendo's forums.

https://www.deviantart.com/nik-2213/art/DS-Kalea-7-Rogue-ported-to-Poser-as-FBX-Yay-951836762