That way, you can restore from backup if anything goes wrong during the upgrade process.
Please consider donating money to the nix Craft via Pay Pal/Bitcoin, or become a supporter using Patreon. Backup important data, sql and configuration file before server running the following upgrade commands.
The following discussion only applies to the SERVER edition. The author is the creator of nix Craft and a seasoned sysadmin, Dev Ops engineer, and a trainer for the Linux operating system/Unix shell scripting.
This includes web server daemons (Apache and nginx), database servers (Postgre SQL and My SQL), and any other non-critical services.
To stop a service, enter the following command, replacing Your Linode is now running Ubuntu 16.04 LTS.
Interim releases will introduce new capabilities from Canonical and upstream open source projects, they serve as a proving ground for these new capabilities.
Many developers run interim releases because they provide newer compilers or access to newer kernels and newer libraries, and they are often used inside rapid devops processes like CI/CD pipelines where the lifespan of an artifact is likely to be less than the support period of the interim release.
Every six months between LTS versions, Canonical publishes an interim release of Ubuntu, with18.10 being the latest example.
These are production-quality releases and are supported for their lifespan, with sufficient time provided for users to update, but these releases do not receive the long-term commitment of LTS releases.
You should make sure you have a high level of confidence in the publisher of any classic snap you install, since a compromise or bad faith behaviour in that code is not confined to the app itself.