Compatibility
Understand historical versions, compatibility syntax, and migration behavior.
Compatibility policy
Understand how WorkSpec accepts historical projects without promoting historical syntax for new authoring.
Historical WorkSpec versions
Compare validator acceptance, runtime status, CLI status, Studio evidence, migration, and authoring recommendations.
Compatibility-only fields and syntax
Reference accepted historical forms that are not preferred WorkSpec 2.2 authoring.
Migration behavior
Migrate previous UAW or WorkSpec 1 documents to the exact WorkSpec 2.1 target produced by the current migrator.