---
title: CNChangeHistoryUpdateGroupEvent
framework: contacts
role: symbol
role_heading: Class
path: contacts/cnchangehistoryupdategroupevent
---

# CNChangeHistoryUpdateGroupEvent

An object that represents an updated group event.

## Declaration

```swift
class CNChangeHistoryUpdateGroupEvent
```

## Topics

### Getting event details

- [group](contacts/cnchangehistoryupdategroupevent/group.md)

## Relationships

### Inherits From

- [CNChangeHistoryEvent](contacts/cnchangehistoryevent.md)

### Conforms To

- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSCopying](foundation/nscopying.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSSecureCoding](foundation/nssecurecoding.md)

## See Also

### Change history data

- [CNChangeHistoryAddContactEvent](contacts/cnchangehistoryaddcontactevent.md)
- [CNChangeHistoryAddGroupEvent](contacts/cnchangehistoryaddgroupevent.md)
- [CNChangeHistoryAddMemberToGroupEvent](contacts/cnchangehistoryaddmembertogroupevent.md)
- [CNChangeHistoryAddSubgroupToGroupEvent](contacts/cnchangehistoryaddsubgrouptogroupevent.md)
- [CNChangeHistoryDeleteContactEvent](contacts/cnchangehistorydeletecontactevent.md)
- [CNChangeHistoryDeleteGroupEvent](contacts/cnchangehistorydeletegroupevent.md)
- [CNChangeHistoryDropEverythingEvent](contacts/cnchangehistorydropeverythingevent.md)
- [CNChangeHistoryEvent](contacts/cnchangehistoryevent.md)
- [CNChangeHistoryFetchRequest](contacts/cnchangehistoryfetchrequest.md)
- [CNChangeHistoryRemoveMemberFromGroupEvent](contacts/cnchangehistoryremovememberfromgroupevent.md)
- [CNChangeHistoryRemoveSubgroupFromGroupEvent](contacts/cnchangehistoryremovesubgroupfromgroupevent.md)
- [CNChangeHistoryUpdateContactEvent](contacts/cnchangehistoryupdatecontactevent.md)
- [CNChangeHistoryEventVisitor](contacts/cnchangehistoryeventvisitor.md)