Knoppix 7.4.2 is a security and bug-fix update which corrects the Shellshock vulnerability in Bash among a number of other vulnerabilities according to the good folks over at Distrowatch. Plus it has the latest and greatest versions of Firefox, Chromium, GIMP, LibreOffice, and a lot more. And since it is a Live Disk, you don’t have to install it on your computer; just pop it in your DVD drive, reboot your computer, and watch it load and run. Enjoy all the software, and when you are done and shut it down it ejects the disc; if you take it out of the DVD tray, the next time you boot your computer you go back to whatever operating system you have on your hard drive. It defaults to the KDE desktop, but you can select others during the boot process, including GNOME. I am going to download the .ISO file tonight and burn that image to disc so I can check it out!