wp-includes/PHPMailer/POP3.php:450Get an array of error messages, if any.
array public function getErrors() { return $this->errors; }Unchanged from 6.9.7 through 7.1.0.
Signature, return type and hooks compared across 3 parsed releases.
src/wp-includes/PHPMailer/POP3.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.