Upgrading Ubuntu 16.04 LTS to the Latest Short Term Support Release Tutorial
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This video demonstrates how to upgrade from an Ubuntu long-term support (LTS) release to a short-term support (STS) release.
A new LTS version is released every two years. Each LTS release is supported for 5 years. The LTS releases primarily get security updates and a minimal amount of updated hardware support during the life of the release.
New STS versions are released every 6 months. Each STS release is supported for 9 months. The benefit of being on the STS release track is that the STS releases come out more frequently and with each new release you upgrade to there is a newer version of your favorite software. Like the LTS releases during the life span of the release you will only receive security updates.
Once you have configured a system to use the STS release track you will get notified of each new STS release. As security updates stop shipping at 9 months on the STS releases you'll need to upgrade more frequently. This can also be the downside to STS releases. If you don't want to have to upgrade your computer every 9 months stick to the LTS releases. At least until you find that you have a good reason to switch- such as may occur in the event that you purchase new hardware. ... https://www.youtube.com/watch?v=4tViFcUMFiI