Trying to figure out needrestart
 

So for example, right now if I type in needrestart I get the following:

root@debian:/home/user# needrestart
Scanning processes...
Scanning candidates...
Scanning linux images...
Running kernel seems to be up-to-date.
No services need to be restarted.
No containers need to be restarted.
User sessions running outdated binaries:
user @ session #2: kdeinit5[1395], ksmserver[1464], plugin-containe[17844]
user @ user manager service: systemd[1316]

The phrase "outdated binaries" confuses me. Apparently, no services need to be restarted (which I think the syntax to restart a service actually depends on the program, correct me if I'm wrong), the kernel is up to date so a computer reboot isn't needed. But I have outdated binaries. How are you supposed to deal with this in general, and maybe if someone is particularly kind they might be able to explain what to do if different sections require daemon restarts?

Debian Bug report logs - #843778
needrestart: restart systemd user daemons and user serviceshttps://bugs.debian.org/cgi-bin/bugr...cgi?bug=843778

speaks of just restarting things that are listed as outdated ...

You can do an and then restart the system. Then, everything should be up to date, And, you usually don't manually run needrestart.