You may have seen the baby poses in the beta section of the site here. And in the last update to the rigs, there were some added baby social rigs(a2b, c2b, p2b). Cmo has now made an official update to the pose player to allow babies to pose. This means that any poses you make for babies can now be shared 🙂
Just remember when you upload, to remind your downloaders that they need to update their pose player to use the pose.