<!--
{
  "availability" : [
    "iOS: 26.4.0 -",
    "iPadOS: 26.4.0 -",
    "macCatalyst: 26.4.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "SwiftUI",
  "identifier" : "/documentation/SwiftUI/EnvironmentValues/showSignificantUpdateAcknowledgment",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Property",
  "symbol" : {
    "kind" : "Instance Property",
    "modules" : [
      "SwiftUI"
    ],
    "preciseIdentifier" : "s:7SwiftUI17EnvironmentValuesV16DeclaredAgeRangeE35showSignificantUpdateAcknowledgmentAD0iJ6ActionVvp"
  },
  "title" : "showSignificantUpdateAcknowledgment"
}
-->

# showSignificantUpdateAcknowledgment

Presents a system interface to inform people about significant app changes and request their acknowledgment.

```
var showSignificantUpdateAcknowledgment: SignificantUpdateAction { get }
```

## Discussion

Call this action from a <doc://com.apple.documentation/documentation/SwiftUI/Button> or
<doc://com.apple.documentation/documentation/SwiftUI/View/onAppear(perform:)> to inform
people about significant app changes that require their acknowledgment.

---

Copyright &copy; 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)