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# callAsFunction(updateDescription:)

Shows the significant update acknowledgment interface.

```
func callAsFunction(updateDescription: String) async throws
```

## Parameters

`updateDescription`

A clear description of what changed in your app and why acknowledgment is required.

## Discussion

Call this method when you need to inform people about significant changes to your app that require their acknowledgment and consent before proceeding. For a code example, refer to <doc://com.apple.documentation/documentation/SwiftUI/EnvironmentValues/showSignificantUpdateAcknowledgment>.

> Throws:
> An error if the request fails.

---

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