[tgandrews]

For a predominantly desktop oriented distro like Ubuntu 100% uptime is an unnecessary complexity. Switching kernels without taking the machine down isn't straight forward. A kernel update is the only reason the updater will advise a restart.

[rbanffy]

And for minor kernel changes, BTW, a restart is not been required for quite some time now.

And Ubuntu on servers is starting to become more attractive than Debian. I set up a Ubuntu media encoder under a Debian/lxc controller and it's remarkable how straightforward it was to assemble (with custom ffmpeg stuff)