How do i get those 52 packeges updated?

i give a sudo apt-get update but still it all remains.

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52 packages can be updated.
9 updates are security updates.
  • update updates your machines list of packages available, upgrade will upgrade your packages (within certain restrictions), dist-upgrade (or full-upgrade) upgrades all packages to latest available. – guiverc Dec 24 '18 at 22:30

sudo apt-get update does NOT install your updates. It only gets the list of packages available for installation.

You need to run sudo apt upgrade to actually do the installation of updated packages. If it still does not do all the updates, then whatever is being installed pulls in some other packages than just those specific packages that need updated and you have to approve the installation step via sudo apt dist-upgrade and its prompts.

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