Follow up of DateTimeException RFC

Hi, There was an RFC about more appropriate date exceptions https://wiki.php.net/rfc/datetime-exceptions implemented in https://github.com/php/php-src/commit/66a1a911f1d6cd4b89c0bb5577fa77f1d6a2cb96 Looking at PHP example, it updated method return types like - Datetime::modify - DatetimeImmutable::modify - DateInterval::createFromDateString https://3v4l.org/iSPL9 These methods doesn't seem to return false anymore, but the PHP stub wasn't updated so the reflection class still consider false as a valid return type https://3v4l.org/IZXbp. Is there still case where such method can return FALSE or should we update the signature of these methods (and maybe some others) ? Thanks.