...

In RfK21 the PrmanObjectStatements node had only a single "attributes" section for all RenderMan attribuates. For RenderMan 22 this section has been divided according to "attributes", "prim ttributes attributes and "primvars" to align with their usage and affect on the object to which the node is assigned. As a result several RenderMan attributes have a new attribute hierarchy in 22.  See the tables below for a list of attributes which have changed from 21 to 22.

...