OK, the 1.7.0 for macOS is available. I was wondering that there was no version 1.6.0…
Anyway, I had only few crashes over the past decade with Scribus, but this version crashed after 10 minutes due to signal XYZ.
In addition, I had to learn the hard way that the files I have modified with 1.7.0 are not backwards compatible, so if you should use the new version, make sure you have a backup of your old files.