wp-admin/includes/file.php:812$file$message function wp_handle_upload_error( &$file, $message ) { return array( 'error' => $message ); }Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-admin/includes/file.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.