---
title: registrationsChangedNotification
framework: avfaudio
role: symbol
role_heading: Type Property
path: avfaudio/avaudiounitcomponentmanager/registrationschangednotification
---

# registrationsChangedNotification

A notification the component manager generates when it updates its list of components.

## Declaration

```swift
class let registrationsChangedNotification: NSNotification.Name
```

## See Also

### Observing registration changes

- [AVAudioUnitComponentManager.RegistrationsChangedMessage](avfaudio/avaudiounitcomponentmanager/registrationschangedmessage.md)