wp-includes/SimplePie/src/Gzdecode.php:192Set the compressed string and related properties
$datastring public function __construct($data) { $this->compressed_data = $data; $this->compressed_size = strlen($data); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/SimplePie/src/Gzdecode.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.