Does Ubuntu get security updates?
Ubuntu Linux is pretty user-friendly when it comes to applying security updates and patches. This page shows how to update the Ubuntu system using the apt command/apt-get command or the GUI tools for desktop installation.
How often is Ubuntu security updated?
Long term support and interim releases
Releases of Ubuntu get a development codename ('Kinetic Kudu') and are versioned by the year and month of delivery - for example, Ubuntu 22.10 was released in October 2022. LTS or 'Long Term Support' releases are published every two years in April.
Is Ubuntu 18.04 still secure?
Secure out of the box
Your Ubuntu software is secure from the moment you install it, and will remain so as Canonical ensures security updates are always available on Ubuntu first.