wp-includes/SimplePie/src/Parse/Date.php:623Get the object
public static function get() { static $object; if (!$object) { $object = new Date(); } return $object; }One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
none to SimplePie\Parse\Date.verified against sourcesrc/wp-includes/SimplePie/src/Parse/Date.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.