How to make the Link to Prototype active only for a certain time?

I have two questions.
First question: is it possible to make a link to a prototype active only for a certain period of time (like at notion)? That is, I send a prototype link and it can only be used for a month, for example.

Second question: If I send a link to a prototype, will the person who got the link see the changes I make in the prototype, or will this link only let him see the old version of the prototype?