--- title: "updatePeerHistoryTTL" description: "The Time-To-Live for messages sent by the current user in a specific chat has changed" nav_exclude: true image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png --- # Constructor: updatePeerHistoryTTL [Back to constructors index](/API_docs/constructors/index.html) The Time-To-Live for messages sent by the current user in a specific chat has changed ### Attributes: | Name | Type | Required | Description | |----------|---------------|----------|-------------| |peer|[long](/API_docs/types/long.html) | Yes|The chat| |ttl\_period|[int](/API_docs/types/int.html) | Optional|The new Time-To-Live| ### Type: [Update](/API_docs/types/Update.html) ### Example: ``` $updatePeerHistoryTTL = ['_' => 'updatePeerHistoryTTL', 'peer' => long, 'ttl_period' => int]; ```