By longwave on
Change record status: 
Published (View all published change records)
Project: 
Drupal core
Introduced in branch: 
9.2.x
Introduced in version: 
9.2.0
Issue links: 
https://www.drupal.org/node/3186752
Description: 

The $langcode argument to _user_mail_notify() is no longer required. Simply omit the argument, the preferred language of the account will be used automatically.

Before:

$mail = _user_mail_notify('password_reset', $account, $account->getPreferredLangcode());

After:

$mail = _user_mail_notify('password_reset', $account);
Impacts: 
Module developers