--- title: help.getAppChangelog description: Get the changelog of this app image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png --- # Method: help.getAppChangelog [Back to methods index](index.md) Get the changelog of this app ### Parameters: | Name | Type | Description | Required | |----------|---------------|-------------|----------| |device\_model|[string](../types/string.md) | Device model | Yes| |system\_version|[string](../types/string.md) | System version | Yes| |app\_version|[string](../types/string.md) | App version | Yes| |lang\_code|[string](../types/string.md) | Language code | Yes| ### Return type: [help\_AppChangelog](../types/help_AppChangelog.md) ### Can bots use this method: **NO** ### MadelineProto Example: ```php if (!file_exists('madeline.php')) { copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php'); } include 'madeline.php'; $MadelineProto = new \danog\MadelineProto\API('session.madeline'); $MadelineProto->start(); $help_AppChangelog = $MadelineProto->help->getAppChangelog(['device_model' => 'string', 'system_version' => 'string', 'app_version' => 'string', 'lang_code' => 'string', ]); ``` ### [PWRTelegram HTTP API](https://pwrtelegram.xyz) example (NOT FOR MadelineProto): ### As a user: POST/GET to `https://api.pwrtelegram.xyz/userTOKEN/help.getAppChangelog` Parameters: device_model - Json encoded string system_version - Json encoded string app_version - Json encoded string lang_code - Json encoded string Or, if you're into Lua: ```lua help_AppChangelog = help.getAppChangelog({device_model='string', system_version='string', app_version='string', lang_code='string', }) ```