I'm using Ubuntu 12.04 LTS, and although I would like to upgrade to 14.04 LTS, I don't want to have any troubles after upgrading. For example, I don't know if I can no longer use some of my software and have to reinstall it.
I'm also worry if my computer have the system requirements necessary to 14.04 LTS version.
That's why I'm asking if it is necessary to upgrade, I mean, will be any problem if I skip the upgrade? Can I stand in 12.04 LTS forever?
Best Answer
Until about April 2017, yes: https://wiki.ubuntu.com/Releases. LTS releases are supported for 5 years. However, the longer you stick with Ubuntu 12.04, the harder it will be to migrate. Things may have changed drastically in 5 years (just compare 8.04 and 12.04). I recommend that you upgrade next year, when 15.04 is out. A year's time should be enough for you to check on compatibility, and barring proprietary drivers and associated problems, 14.04 will run on most about anything that can run 12.04.