Could you also point out how one can find that link with the list of old installers? I opened a bug report some time ago because there was no such list (which Apple confirmed) and was never notified that there is one now.

Sorry, I didn't get a notification for your update. I don't have an M1 Mac. I have used virtualization software in the past, but I could never test reliably because there were always some glitches that I later discovered didn't happen with a native install.

Thank you, but I don‘t know how I can possibly use the older installers without having newer software around. Could you expand on that?

I tried with macOS Big Sur and yes, the installer is one of those named „Install macOS Catalina.app“ or similar. At some point during the boot from the installer either a general error appears, or again one of those messages that the installed macOS version is too old.

Thank you, but I forgot to mention that even when creating an installer on an external device doesn't work. I don't remember the exact error message, but it may be again that the macOS version is too old, or another general error.

Thanks, it works. Now I only have to activate the bell for every thread I created.

This has been a problem for at least 1 whole year already. I don’t want to be rude, but I hope you’ve been looking into this for this whole time already (and yes, I filed a bug for this at the time, see https://developer.apple.com/forums/thread/669352).

I‘m confused now. Did it work 2 weeks ago and now it doesn’t work anymore? I never saw that bell, but if that was the answer to my problem, then why did everybody remain silent while I was complaining and waiting for a solution (that is, everybody except you)?