Updating ubuntu 7 04
This guide explains how to upgrade your Linode from Ubuntu 12.04 (Precise Pangolin) to Ubuntu 14.04 (Trusty Tahr).In the interest of security, Ubuntu 14.04 LTS disables password based SSH authentication for the root user.Please note that you can’t directly upgrade from Ubuntu 14.04 to Ubuntu 15.04. Though, the steps provided below are compatible for Ubuntu 15.04, It might work for other Ubuntu derivatives, including Lubuntu/Kubuntu/Xubuntu 15.04 as well.We can upgrade from one version to another latest version. A word of caution: Before upgrading, backup all your important data to any external device like USB drive or CD/DVD.
Ruby 2.4.1 brings over 150 changes, almost entirely bug fixes.
Ruby 2.2.7 brings about 70 bug fixes since 2.2.6 but is also the last maintenance phase release of Ruby 2.2. Ruby 2.3.4 brings about 80 bug fixes, particularly a fix for a regression in the behaviour of Symbol#hash.