When I SSH into my Ubuntu Desktop, I get some output saying:
0 packages can be updated.
0 updates are security updates.
However, running sudo apt-get upgrade tells me that a package (numix-icon-theme) can be upgraded. Is there a reason that I'm told there are no updates?
The reason is either:
there's a bug in the ~/.profile or /etc/profile (or wherever) code which detects and counts the available updated packages.
apt-get update hasn't been run recently (i.e. since the updated package was made available). There's probably a cron job that runs apt-get update periodically. If it's important to you, modify the crontab entry so that it runs more frequently.
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