Comment # 26 on bug 984778 from Benjamin Zeller

(In reply to Tony Mechelynck from comment #25)
> Upgraded yesterday to the current beta or RC of Leap 15.1.
> 
> zypper version is 1.14.27 and its manpage mentions the needs-rebooting
> command.
> 
> It says:
> No core libraries or services have been updated.
> Reboot is probably not necessary.
> 
> and ends with status zero (indeed, ATM my system doesn't need rebooting).
> 
> Note that it said the same thing at the end of "zypper --releasever=15.1
> dup" even though the kernel had been updated as part of the distribution
> upgrade.

If the "needs rebooting" flag was set or not depends on the zypper version that
did the upgrade. If you upgraded from a zypper version not having the feature
to the one offering it, the flag can not be set.