wp-includes/SimplePie/src/Net/IPv6.php:218Checks if the given IP is a valid IPv6 address
$ipstringbool public static function checkIPv6(string $ip) { return self::check_ipv6($ip); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/SimplePie/src/Net/IPv6.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.