USD workflow is available in Painter 8.3. USD was developped by Pixar as a collaboration-friendly interchangable format which allows to carry many different types of data. 

In the context of Painter, it is now possible to:

• Create a project, making use of USD specific features, such as choice of scope and variants, subdivison levels and animation frames.
• Export materials and textures using the USD format.
• Additionally, USD had been added as a new file format for mesh-only export.