---
title: "unregisterChangeObserver(_:)"
framework: photos
role: symbol
role_heading: Instance Method
path: "photos/phphotolibrary/unregisterchangeobserver(_:)"
---

# unregisterChangeObserver(_:)

Unregisters an object so that it no longer receives change messages.

## Declaration

```swift
func unregisterChangeObserver(_ observer: any PHPhotoLibraryChangeObserver)
```

## Parameters

- `observer`: An object currently registered to receive change messages.

## See Also

### Observing Library Changes

- [Observing Changes in the Photo Library](photokit/observing-changes-in-the-photo-library.md)
- [register(_:)](photos/phphotolibrary/register(_:)-6y3b9.md)
- [PHPhotoLibraryChangeObserver](photos/phphotolibrarychangeobserver.md)
- [PHChange](photos/phchange.md)
- [PHObjectChangeDetails](photos/phobjectchangedetails.md)
- [PHFetchResultChangeDetails](photos/phfetchresultchangedetails.md)