How To Upgrade Ubuntu 14.04 LTS to Ubuntu 16.04 LTS

How To Upgrade Ubuntu 14.04 LTS to Ubuntu 16.04 LTS - OMG! Ubuntu!
▻http://www.omgubuntu.co.uk/2016/04/how-to-upgrade-ubuntu-14-04-to-ubuntu-16-04-lts

Is Performing an LTS-to-LTS Upgrade Recommended?