just put a date (in YYYY-mm-dd format, so it sorts properly) somewhere.
report 2022-09-01 draft.doc
report 2022-09-02 draft2.doc
report 2022-09-03 final.doc
report 2022-09-04 draft4.doc
(A more powerful way is to use some sort of version control system; but those don't generally work well with non-text documents.)