Method: account.updateUsername

Changes username for the current user.

Parameters:

Name	Type	Description	Required
username	string	username or empty string if username is to be removed Accepted characters: a-z (case-insensitive), 0-9 and underscores. Length: 5-32 characters.	Optional

Return type: User

Can userbots use this method: YES

Can bots use this method: NO

MadelineProto Example (now async for huge speed and parallelism!):

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();

$User = $MadelineProto->account->updateUsername(username: 'string', );