As of April 2026, Call of Duty: Modern Warfare 3 has received a series of unexpected maintenance updates. While official patch notes for a version specifically numbered "14382" have not been formally released by Sledgehammer Games, a significant 3GB patch was deployed to Steam and consoles in early 2026 that introduced several "secret" changes and final quality-of-life fixes. The 2026 "Secret" Update Highlights

If you want, I can convert this into a short social post, a patch-notes-style bullet list, or a changelog formatted for a forum. Which format do you prefer?

What’s New in the 14382 Patch?

1. Core Anti-Cheat Telemetry Update

The headline feature of the 14382 patch new is a silent update to the client-side integrity check. Activision’s legacy team has injected a new hash check for iw5mp.exe. This specifically targets the "ESP box" cheats that resurfaced in April. Players using modified DLL injectors will now crash to desktop at the "Fetching Stats" screen.

opened (Story Mission: Union), along with new schematics like the Dead Wire Detonators and Golden Mask Filter.

Lethal Adjustments:

1. Multiplayer: Maps, Modes, and Mechanics

This update brings significant changes to the multiplayer meta and map pool.