- Download the previous version of iTunes. I used oldversion, but later found out that the older versions are available from Apple.
- Uninstall iTunes – the old version would not install over e newer version. Fortunately the uninstallation did not remove the library.
- Replace the iTunes library with the saved pre-update backup that iTunes took last Friday
- Install the old version of iTunes.
The good news is that everything works again. The bad news is with the library file replacement in step 3, all of my changes over the weekend have been lost. Podcasts that I had finished are now marked as “new”, and a whole lot of ratings changes that I synced over the weekend have been lost. And that’s an hour-and-a-half of a Monday morning that I will never get back.