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

# Download Update

To download the latest version of your app, call the following function:

```csharp theme={"system"}
UpdateController.Instance.DownloadUpdate()
```

The SDK will attempt to download the latest available version, triggering the following callbacks in sequence:

1. `onDownloadStarted`: Triggered once when the SDK begins downloading the update.
2. `onProgress`: Triggered multiple times during the download process to report the current progress.
3. `onDownloadEnded`: Triggered once when the download is complete.
4. `onInstallationReady`: Triggered when the update is ready to be installed.