Ubuntu has become the first choice of thousands of Linux lovers because it is a Debian-based Linux portable operating system with default user-friendly desktop environment (GNOME was the previous desktop environment). Because of its features and functionality Ubuntu is the most popular desktop Linux distribution to date.
Features of Ubuntu:
2) Smarter searching
3) Next-generation user interface
4) Web browsing
5) Speedy surfing
6) Built-in security
7) Office applications
8) Social and email
9) Games and apps
10) Desktop for developers
Because it is an open source operating system it has updates in its core by a community of open source developers worldwide and an improved version of Operating system comes into picture which requires only simple 3 steps to upgrade your older Ubuntu version to a new refined version.
Steps to Upgrade from Ubuntu 13.10 to 14.04 LTS:
Step 1 : :Click on the Software Updater
Click the Superkey (Windows key) to launch the Dash and search for Update Manager.
Step 2 : Now Check for updates
Click the Check button to check for new Ubuntu Version updates. If there are any updates available to install, use the Updates button to complete the first update then press the Upgrade button.
Step 3 : Install the upgrade
A message box will appear informing you of the availability of the new release. Click Upgrade and follow the on-screen instructions.