Hi Juliane,
we are currently preparing a major release but want to wrap up one or two more things first.
To use the new features before the new release, you can build cadet from source, which became a lot easier thanks to the work of @ronald.jaepel.
If you are having trouble with building CADET from source, we’d be happy to help you with that during our next office hour. If that wait is too long, we can arrange something sooner.
Out of curiosity, may I ask which new feature you’re interested in?
Best regards,
Jan