wp-includes/SimplePie/src/SimplePie.php:1027Get the class registry
SimplePie\Registry public function &get_registry() { return $this->registry; }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/SimplePie/src/SimplePie.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.