---
title: USDStage.Notice
framework: usdkit
role: symbol
role_heading: Protocol
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+, macOS 27.0+, tvOS 27.0+, visionOS 27.0+]
path: usdkit/usdstage/notice
---

# USDStage.Notice

## Declaration

```swift
protocol Notice
```

## Topics

### Instance Properties

- [stage](usdkit/usdstage/notice/stage.md)

## Relationships

### Conforming Types

- [USDStage.ObjectsDidChange](usdkit/usdstage/objectsdidchange.md)

## See Also

### Observing changes

- [addObserver(for:using:)](usdkit/usdstage/addobserver(for:using:).md)
- [USDStage.ObjectsDidChange](usdkit/usdstage/objectsdidchange.md)
- [USDStage.ObservationToken](usdkit/usdstage/observationtoken.md)