OSCAL 1.1.1 will be a patch release with minor model improvements, documentation, and artifact release changes that are backwards compatible.
Changes: Key Take-aways
Models
Allow non-FISMA/RMF use cases for SSP information type impact levels.
Remove obsolete model documentation for biblio elements in back-matter/resources.
Profile Resolution and Process Specs
Change spec for more practical definition of metadata/last-modified.