Hi Go Kudo, This proposal looks much better. Well done. What would help is if you showed the examples from the introduction section rewritten using the new API. I don't think it makes sense to make parameters (?int $min = PHP_INT_MIN, ?int $max = PHP_INT_MAX) nullable. Regarding the method names, I would be afraid of naming them using PHP keywords. Maybe they should be called getInt and getBytes? Why isn't the new class in a new extension? Is there a reason why it should go into core? Regarding the name, I think Random or Randomizer is fine, but I would avoid acronyms.
Regards, Kamil
