By default, Ubuntu checks for system updates every day and prompts you when they are available. At that point, you can choose to download and install the updates immediately or have Ubuntu remind you later. However, you can also choose to have updates downloaded and installed automatically.

Does Ubuntu automatically upgrade?

Although your Ubuntu system will not automatically upgrade itself to the next release of Ubuntu, the Software Updater will automatically offer you the opportunity to do so, and it will also automate the process of upgrading to the next release.

Does Linux update automatically?

Closing the Linux Security Loophole

You can automatically update Linux applications and kernels yourself by combining a scheduling program, like cron , with your platform’s package maintainer, such as yum , apt , or dnf . Some Linux vendors have done this by creating packages that do unattended updating for you.