Call to undefined method Symfony\Component\Mime\Message::getTo()

[savicmi]

After updating to version 2.3.8, I get server errors about sending emails.

• Call to undefined method Symfony\Component\Mime\Message::getTo()
• src/XF/Mail/Mailer.php:483

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Also, I get the same error if I try to manually send a password reset email to a user.



What is the cause and how do I solve it?

I use these versions:
PHP version 8.4.17
MySQL version 10.11.14 (10.11.14-MariaDB-log)

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