Hi, I'd like to open the discussion on a new RFC: https://wiki.php.net/rfc/serializable_closures
PHP 8.5 allowed closures in attribute arguments and parameter defaults. These closures are static and capture nothing, yet they cannot be serialized, which silently breaks every serialize()-based metadata cache that meets them. The RFC proposes to make them serializable as references to their declaration site. Feedback welcome. Cheers, Nicolas
