It’s in addition, not a replacement. Edit your sources and the order as needed.
As far as I can tell from above posts, it is working for everyone after updating core AND remotes. (Though apparently some existing WP entries are not found, I am sure this will be fixed)
If everything is gone for you please ensure that everything is up to date and post screenshots of your sources configuration in Settings > General, and example albums/artists.
Expand the description with the downward arrow to see the sources list on the right:
This is how it should be, note that the TiVo review still exists and it’s my default:
There is a support thread about an issue that seems like yours. This is obviously some kind of bug, resolved in this case, check there: