> For example when config formats change, if I have /etc/example.yml created already, pacman will throw an error and put the new file at /etc/example.yml.pac-ne

> For example when config formats change, if I have /etc/example.yml created already, pacman will throw an error and put the new file at /etc/example.yml.pac-new But, you understand that this means that Debian doesn't handle the issue, right ? Like, cool, I got an error but I still can't make my two programs run concurrently, back to Docker it is. Also some programs may generate config files or stuff in /var at runtime so apt can't even warn.