wp-includes/Text/Diff.php:468PHP4 constructor.
$orig$final public function Text_Diff_Op_change( $orig, $final ) { self::__construct( $orig, $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.