This refers to a specific update in the game's lifecycle. In the world of strategy games, version numbers are critical because they track balance changes, AI improvements, and bug fixes. v1.0.64759 likely corresponds to a stable build released after a major DLC launch.
: Downloading "Incl.ALL.DLC" packs from unofficial sources is a form of digital piracy. File: Old.World.v1.0.64759.Incl.ALL.DLC.zip ...
: Because this is a static zip of version 1.0.64759, it won't receive official bug fixes or new content released by Mohawk Games later. This refers to a specific update in the game's lifecycle