wp-includes/SimplePie/src/SimplePie.php:1407Set a namefilter to modify the cache filename with
$filterSimplePie\Cache\NameFiltervoid public function set_cache_namefilter(NameFilter $filter): void { $this->cache_namefilter = $filter; }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.