wp-includes/SimplePie/src/IRI.php:238Create a new IRI object, from a specified string
$iristringoptionalnull public function __construct($iri = null) { $this->set_iri($iri); }One change between 6.7.7 and 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
$iri retyped from string to string|null.verified against sourcesrc/wp-includes/SimplePie/src/IRI.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.