The 2021.1 update duo features blend shapes, PBR materials setup, real-time ray tracing, and more tools.
The latest version of Silo features blend shapes, variable SubD edge creasing, PBR materials setup, and other updates. Milo features real-time ray tracing and a new nighttime sky background option. Milo's support for Unreal Engine’s hardware-accelerated ray tracing on Nvidia RTX GPUs is still in progress and for now, it is intended for viewport previews. Plus, both Silo and Milo 2021 support VR.
Both tools are available for Windows 10 and macOS 10.14.6 and above. Together, Silo and the early access Milo cost $149. If you have purchased the products or renewed your license within the last year, you can upgrade to the latest version for free.