wp-includes/Text/Diff.php:383PHP5 constructor.
$orig$finaloptionalfalse function __construct( $orig, $final = false ) { if (!is_array($final)) { $final = $orig; } $this->orig = $orig; $this->final = $final; }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/Text/Diff.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.