I just upgraded and to my horror, it went to a screen saying that my license wasn't activated.
I'm happy to say that all it took was a click/verify and it activated without issue, but, my heart skipped a beat!
Now, the team at Hudu are
on the ball and respond quick, but, I can't imagine being without some of the documentation I've created.
I didn't experiment to see what happens to clients on the portal, regular user logins or API, However, I would like to suggest that in the event of a license issue, the master admin(s) should be allowed read only access.