How To Undo The New Update [Guide]

On 19 February 2026 – 17:04:54 UTC, Treyarch released a patch update for Call of Duty: Black Ops III.

This update inadvertently broke many workshop mods, including popular clients like T7Patch and T7x.

Key changes introduced by the patch:

• Altered the game’s .exe file structure, affecting how DLLs load.
  
• Modified Arxan anti-tamper, preventing patches and clients from updating easily.
  
• Optimized anti-tamper checks for performance and reduced font lag.
  
• Updated GPU utilization and removed some server filtering that could crash the game.
  
• Standard gameplay updates and performance improvements.

Because of these changes, many mods and custom clients stopped working until they are updated. Players looking to continue using T7Patch, T7x, or other workshop mods need to rollback to the previous version.

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Follow these steps carefully to manually revert Black Ops III to the version prior to the February 19, 2026 update:

• Open Steam and access the Steam console:
  steam://open/console
  
  
• Use the Steam console command to download the old depot:
  download_depot 311210 311211 9084453472036406216
  
  
• Locate the depot folder. Typical path:
  C:\Program Files (x86)\Steam\steamapps\content\app_311210\depot_311211
  
  
• Copy the files from the depot folder:
  - BlackOps3.exe
  - installscript_311210.vdf
  
  
• Paste them into your Black Ops III installation directory, typically:
  C:\Program Files (x86)\Steam\steamapps\common\Call of Duty Black Ops III
  Overwrite the existing files.
  
  
• Launch the game. You are now on the version prior to the 19 February 2026 update and can continue using T7Patch, T7x, or other mods.

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For a faster, safer rollback without manually handling SteamCMD:

• Download T7Rollback from the GitHub repository: https://github.com/ISTGLMA/T7Rollback or https://istglma.github.io/T7Rollback/
  
  
• Run T7Rollback.exe.
  
  
• On the main menu, select:
  Revert Update (19 February 2026)
  
  
• Enter your Steam username and other credentials when prompted. SteamCMD will handle the depot download and file replacement automatically.
  
  
• Wait until the tool finishes. Once complete, you will see:
  All done! :)
  
  
• Your game is now reverted and fully compatible with T7Patch, T7x, and workshop mods.

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