Question:

Jobs can be used to change the lifecycle state of documents with satisfied conditions.

But can jobs change the state of a previous version of a document?

Answer:

The state of a previous version document cannot be updated by a Job even if all the conditions are satisfied. This is because the available actions for previous versions are very limited. Vault recognizes only the latest version of a document as valid. 

Related Documentation:

Vault Help Documentation: Working with Previous Versions