You can see it in the announcement of simutrans version 124.2.1 - the foldername for the downloads in sourceforce is wrong.
https://forum.simutrans.com/index.php/topic,23162.0.html
https://sourceforge.net/projects/simutrans/files/simutrans/
The folder is now 142.2.1, it should be 124.2.1.
Indeed, fixed.