Ubuntu 15.10 is here!
The latest update (15.10)of the popular Ubuntu version of the Linux operating system is here.
Linux is a free, very powerful and secure operating system that is easy to use and share.
Because almost all programs for the Linux OS are free you can legally give your friends a copy.
Most distributions also run directly from the CD or DVD so you can try the OS without installing it. If you then want to install it there will be a link on the desktop and because it is an intelligent OS it will give you the option to shrink your Windows partition or use a separate disk for the install - you can even install it from within windows like a windows program. It then sets up a boot manager to let you choose which OS to run. It is even possible to set it up so that you can run Windows in a window on your Linux desktop!