Two new releases of Fahrplan were released yesterday. Version 2.0.22 was already approved in all relevant app stores. Version 2.0.23 is still in the review process for BlackBerry World and Jolla Store.
Both of them are hotfixes for broken bahn.de service. So if you were getting “Unknown error occurred with the backend (error 12)” error message, be sure to go and update Fahrplan.
Except for the fix of bahn.de, version 2.0.22 contains an improved About page.