channelDifferenceEmpty
There are no new updates
channelDifferenceTooLong
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).
channelDifference
The new updates
differenceEmpty
No events.
differenceSlice
Incomplete list of occurred events.
differenceTooLong
The difference is too long, and the specified state must be used to refetch updates.
difference
Full list of occurred events.
state
Updates state.