On 10/23/2015 12:51 PM, Jonathan Billings wrote:
No. If anything, systemd handles upgrades better than SysV init, since it handles re-execing better. Please stop spreading FUD.
Most likely the glibc and openssl updates are what people are talking about. Doesn’t require a reboot, just restarting all the services that might have those libraries loaded.
and of course, new kernels generally require a reboot, unless you've got that live kernel update thing running (which scares the heck out of me).