wp-includes/SimplePie/src/Item.php:90Remove items that link back to this before destroying this object
public function __destruct() { if (!gc_enabled()) { unset($this->feed); } }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/SimplePie/src/Item.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.