48 lines
1.3 KiB
Markdown
48 lines
1.3 KiB
Markdown
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---
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title: help.getAppChangelog
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description: Get changelog of current app.
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image: https://docs.madelineproto.xyz/favicons/android-chrome-256x256.png
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redirect_from: /API_docs/methods/help_getAppChangelog.html
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---
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# Method: help.getAppChangelog
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[Back to methods index](index.md)
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Get changelog of current app.
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Typically, an [updates](../constructors/updates.md) constructor will be returned, containing one or more [updateServiceNotification](../constructors/updateServiceNotification.md) updates with app-specific changelogs.
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### Parameters:
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| Name | Type | Description | Required |
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|----------|---------------|-------------|----------|
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|prev\_app\_version|[string](../types/string.md) | Previous app version | Yes|
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### Return type: [Updates](../types/Updates.md)
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### 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
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if (!file_exists('madeline.php')) {
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copy('https://phar.madelineproto.xyz/madeline.php', 'madeline.php');
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}
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include 'madeline.php';
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$MadelineProto = new \danog\MadelineProto\API('session.madeline');
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$MadelineProto->start();
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$Updates = $MadelineProto->help->getAppChangelog(['prev_app_version' => 'string', ]);
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```
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Or, if you're into Lua:
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```lua
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Updates = help.getAppChangelog({prev_app_version='string', })
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```
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