Hi folks, Silo 2.5.6 is out now and should auto-update here on Steam. This update adds a new (beta) feature, GoZBrush support for sending models back and forth between Silo and Pixologic's ZBrush. This feature is in beta while we get more information about how well it works on people's systems. (Specifically, there may be some difficulty getting ZBrush to find and open Silo within Steam, but it should work fine if both applications are already open and running.)
You can read more about getting up and running with GoZBrush here: https://nevercenter.com/blog/index.php?pid=21
If you're not a ZBrush user, we realize this may not be very exciting to you. Our next update will be targeted for everyone. Thanks for your patience!