We bought a license for a user. Does that user need to resend meeting invites?

So, the premise of this is that one of our staff members only had Basic initially when he sent out a meeting invite. The old URL starts with "https://zoom.us", but new meeting URLs start with our branded Zoom URL.

In the URL, the meeting ID and the pwd parts are exactly the same, and the rest of the meeting login info is exactly the same. I assume this means meeting participants who have received the old invitation can still get in, but I wanted to be sure.