I actually didn?t upgrade anything myself: I am using your docker-compose solution, on a Ubuntu 18.04 host.

Just as a sidenote as I noticed this as well: We also use the docker-compose setup and while I did not investigate the reasons yet, I can confirm that our mailed notifications are broken since the recent update. I didn't care to much as we check manually either way, but I can confirm from my last e-mail that the "breaking change" was simply a rebuild of the docker compose setup with the latest updates, but no host changes.

- Olli