After updating my Drupal 8 test site from 8.3.7 to 8.4.0, I got these error messages:
Mismatched entity and/or field definitions
The following changes were detected in the entity type and field definitions.
- The Sprache field needs to be updated.
- The Veröffentlicht field needs to be updated.
- The Behavior settings field needs to be updated.
What do I have to do? I don't know how and where I should update these fields. Should I update any database table, or is there another workaround?