complete version; final version
Refers to a finished, fully realized version of a work, product, or plan, as opposed to a draft or prototype.
Please submit the final version of the report by tomorrow.
The complete version of this game will be released next month.
最終版 emphasizes the last version in a series, often implying no further changes, while 完成版 focuses on being fully realized.
Compound of 完成 (completion) and 版 (version, edition).