> ## Documentation Index
> Fetch the complete documentation index at: https://docs.launcherforge.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Updates

> Learn how manifests and hashes reduce update transfers.

# Updates

Launcher Forge uses file manifests and SHA-256 hashes.

1. The published build is scanned.
2. Each file receives a content hash.
3. A manifest describes the version.
4. New or modified files are identified.
5. The launcher downloads the files required by the target version.

<Info>
  A rebuilt or renamed file can receive a different hash even when its visible content appears similar.
</Info>

<Frame caption="Manifest comparison and changed-file download">
  <img src="https://mintcdn.com/launcher-forge/bI18S_IAtXIDvEcC/images/screenshots/updates.png?fit=max&auto=format&n=bI18S_IAtXIDvEcC&q=85&s=46d54e597201d3ad0ce82f4dd1958218" alt="Game update process" width="1600" height="900" data-path="images/screenshots/updates.png" />
</Frame>