While there is no single official update labeled exactly as "v3.40.0-CODEX," the version number 3.40.0 refers to a significant content update released by IO Interactive on June 15, 2021.

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In late 2023, Hitman: World of Assassination hit Game Pass. IOI receives a payout based on active users. Cracked PC players using CODECX were artificially deflating conversion metrics.

On the Io Interactive forums, a developer posted:

The latest update to Hitman 3, version 3.40.0, has been making waves in the gaming community, particularly with the Codex patch. As a stealth action game, Hitman 3 has consistently delivered on its promise of providing players with a rich, immersive experience, and this update aims to enhance that experience even further.

From a technical standpoint, v3.40.0 was about 1.2 GB on Steam and Epic Games Store. The most controversial part? The anti-tamper strengthening — which directly affected cracked versions of the game.

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