I was actually talking about both. For example for python, which is what I usually use, both uwsgi and gunicorn support graceful restarts. Admittedly I don't ha

I was actually talking about both. For example for python, which is what I usually use, both uwsgi and gunicorn support graceful restarts. Admittedly I don't have much experience with other languages, but it's technically possible. If your application doesn't support it out of the box, you can still achieve it with something like systemd's socket activation.