What should we do in case the update URL changed (there are users use the app)?

[Mezo1234-beep]

Hello there, I hope you are doing well.

I've been using PyUpdater for a while in my application, And I already have users use it. but now I have a problem that is: For some reason, the old updater URL is broken, So I switched to a new one, the problem is how the old user will be able to fetch new updates from the new URL? what should we do in that case? is it okay to only change the UPDATE_URL in the client.config (in end-user PC) file will fix the problem? What is the purpose of having "UPDATE_URLS" : [] in config.pyu file?

PyUpdater 4.0 Pyinstaller 4.4 defev_utils 1.0.5