The term in this context typically refers to a Proper Release within the software/gaming community. This means:
The release is intended to correct a "nuked" or broken version previously uploaded by another group that might have had bugs, missing files, or a faulty installation process. Through.the.Ages.v2.17.601.rar
Full compatibility with the New Leaders and Wonders expansion on platforms like Steam and GOG . The term in this context typically refers to
Optimization for card management and military history logs. Through.the.Ages.v2.17.601.rar
Resolution of specific desync issues in online matches and AI pathfinding improvements. 17.x update branch?