Before ubuntu 16.04 came out this year (2016), the latest ubuntu with LTS support available is ubuntu 14.04. The question is should the existing ubuntu 14.04 users (like my self) upgrade to the newest LTS ubuntu 16.04?
For those who still uses ubuntu 14.04 trusty tahr, there is no need to upgrade to the newest LTS, because ubuntu 14.04 still supported until april 2019, that's three years from now. Even the older LTS ubuntu 12.04 still suported until april next year (2017).
If you are ubuntu 12.04 (precise pangolin) users, probably yes you should prepare to upgrade to the latest LTS, which is ubuntu 16.04. But for ubuntu 14.04 you shouldn't because it's still a long way until ubuntu 14.04 reach it's end of life.
|Release||Code Name||Released||End of life|
|Ubuntu 16.04||Xenial Xerus||April 2016||April 2021|
|Ubuntu 14.04||Trusty Tahr||April 2014||April 2019|
|Ubuntu 12.04||Precise Pangolin||April 2012||April 2017|
|Ubuntu 10.04||Lucid Lynx||April 2010||April 2015|