I've been in-place upgrading my Fedora install for about 7 years. Or is it 10? IDR. As far as I remember the upgrade has always succeeded. Sometimes things are

I've been in-place upgrading my Fedora install for about 7 years. Or is it 10? IDR. As far as I remember the upgrade has always succeeded. Sometimes things are broken afterwards because software I liked got removed or something, but I never got locked out or the operating system unusable.