wp-includes/SimplePie/library/SimplePie/Content/Type/Sniffer.php:53 class SimplePie_Content_Type_Sniffer extends Sniffer { }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/SimplePie/library/SimplePie/Content/Type/Sniffer.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.