MadelineProtoDocs/old_docs/API_docs_v91/methods/langpack_getDifference.md

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---
title: langpack.getDifference
description: Get language pack updates
image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
---
# Method: langpack.getDifference
[Back to methods index](index.md)
Get language pack updates
### Parameters:
| Name | Type | Description | Required |
|----------|---------------|-------------|----------|
|lang\_code|[string](../types/string.md) | Lang code | Yes|
|from\_version|[int](../types/int.md) | Previous version | Yes|
### Return type: [LangPackDifference](../types/LangPackDifference.md)
### Can bots use this method: **NO**
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### MadelineProto Example ([now async for huge speed and parallelism!](https://docs.madelineproto.xyz/docs/ASYNC.html)):
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```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();
$LangPackDifference = $MadelineProto->langpack->getDifference(['lang_code' => 'string', 'from_version' => int, ]);
```
Or, if you're into Lua:
```lua
LangPackDifference = langpack.getDifference({lang_code='string', from_version=int, })
```
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### Errors
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| Code | Type | Description |
|------|----------|---------------|
|400|LANG_PACK_INVALID|The provided language pack is invalid|
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