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# SCPreferencesSynchronize(_:)

Synchronizes accessed preferences with committed changes.

```
func SCPreferencesSynchronize(_ prefs: SCPreferences)
```

## Parameters

`prefs`

The preferences session.

## Discussion

Any references to preference values returned by calls to [`SCPreferencesGetValue(_:_:)`](/documentation/SystemConfiguration/SCPreferencesGetValue(_:_:)) are no longer valid unless they were explicitly retained or copied. Any preference values that were updated (added, set, or removed), but not committed, are discarded.

---

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