wp-includes/PHPMailer/PHPMailer.php:5512Allows for public read access to 'cc' property.
array public function getCcAddresses() { return $this->cc; }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/PHPMailer/PHPMailer.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.