You can download the new version here:
Windows 10 or higher: https://www.timetabling.de/download/BaElTo-0.4.0.exe
MacOS 11 or higher: https://www.timetabling.de/download/BaElTo-0.4.0-MacOS.dmg
Linux 64bit: https://www.timetabling.de/download/BaElTo-0.4.0-Linux-x86_64.AppImage
Please let me know if you need an other version like Linux ARM, ...
I added the German translation (by me) and some AI translations. I guess around 5% of the AI translations won't be well. Please let me know if you want to improve it. There are currently only around 500 sentences in BaElTo.