# updates.ChannelDifference

Contains the difference (new messages) between our local channel state and the remote state

```tl
updates.channelDifferenceEmpty#3e11affb flags:# final:flags.0?true pts:int timeout:flags.1?int = updates.ChannelDifference;
updates.channelDifferenceTooLong#a4bcc6fe flags:# final:flags.0?true timeout:flags.1?int dialog:Dialog messages:Vector<Message> chats:Vector<Chat> users:Vector<User> = updates.ChannelDifference;
updates.channelDifference#2064674e flags:# final:flags.0?true pts:int timeout:flags.1?int new_messages:Vector<Message> other_updates:Vector<Update> chats:Vector<Chat> users:Vector<User> = updates.ChannelDifference;

---functions---

updates.getChannelDifference#3173d78 flags:# force:flags.0?true channel:InputChannel filter:ChannelMessagesFilter pts:int limit:int = updates.ChannelDifference;
```

### Constructors

| Constructor | Description |
| --- | --- |
| [updates.channelDifferenceEmpty](/constructor/updates.channelDifferenceEmpty.md) | There are no new updates |
| [updates.channelDifferenceTooLong](/constructor/updates.channelDifferenceTooLong.md) | The passed `pts` is too old: one or more updates starting from the specified PTS were deleted from the message box of this channel.\
\
For supergroups/channels, this usually happens for updates older than `latestPts - 100000` (though do not rely on this value, it's a server-side implementation detail that may change, and should not be used by clients in any way). |
| [updates.channelDifference](/constructor/updates.channelDifference.md) | The new updates |

### Methods

| Method | Description |
| --- | --- |
| [updates.getChannelDifference](/method/updates.getChannelDifference.md) | Returns the difference between the current state of updates of a certain channel and transmitted