MadelineProtoDocs/old_docs/API_docs_v38/methods/help_getAppChangelog.md

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---
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:
```
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:
```
help_AppChangelog = help.getAppChangelog({device_model='string', system_version='string', app_version='string', lang_code='string', })
```