16.04.3 LTS is the latest long-term support release. It is supported until April 2019.
Minimum System Requirements
- 1 GHz processor (for example Intel Celeron) or better.
- 1.5 GB RAM (system memory).
- 10 GB of free hard drive space for installation.
- Either a CD/DVD drive or a USB port for the installer media.
- Internet access is helpful (for installing updates during the installation process).
Download Disk Image
If your PC was released after the year 2007, you probably need the 64-bit version.
Using the torrent link is highly recommended. Not only is it faster, but it also reduces server costs, which allows more money in the budget for all Ubuntu flavors!