---
title: DefaultHistoryUpdate
framework: swiftdata
role: symbol
role_heading: Structure
path: swiftdata/defaulthistoryupdate
---

# DefaultHistoryUpdate

## Declaration

```swift
struct DefaultHistoryUpdate<Model> where Model : PersistentModel
```

## Topics

### Operators

- [==(_:_:)](swiftdata/defaulthistoryupdate/==(_:_:).md)

### Instance Methods

- [hash(into:)](swiftdata/defaulthistoryupdate/hash(into:).md)

### Type Aliases

- [DefaultHistoryUpdate.PropertyUpdate](swiftdata/defaulthistoryupdate/propertyupdate.md)

## Relationships

### Conforms To

- [HistoryUpdate](swiftdata/historyupdate.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### History life cycle

- [HistoryChange](swiftdata/historychange.md)
- [HistoryDelete](swiftdata/historydelete.md)
- [HistoryInsert](swiftdata/historyinsert.md)
- [HistoryToken](swiftdata/historytoken.md)
- [HistoryTransaction](swiftdata/historytransaction.md)
- [HistoryUpdate](swiftdata/historyupdate.md)
- [HistoryTombstone](swiftdata/historytombstone.md)
- [DefaultHistoryInsert](swiftdata/defaulthistoryinsert.md)
- [DefaultHistoryDelete](swiftdata/defaulthistorydelete.md)
- [DefaultHistoryToken](swiftdata/defaulthistorytoken.md)
- [DefaultHistoryTransaction](swiftdata/defaulthistorytransaction.md)