it). It is possible to run Puppy Linux with Windows 9x/Windows Me. It is also possible if the BIOS does not support booting from USB drive, to boot from the CD and keep user state on a USB key drive; this will be saved on shutdown and read from the USB device on bootup. Puppy 2.0 uses the Mozilla-based SeaMonkey as its Internet suite (primarily a web browser and e-mail client). Puppy 3.0 features Slackware 12 compatibility. This is accomplished by the inclusion of almost all the dependencies needed for the installation of Slackware packages. However, Puppy Linux is not a Slackware-based distribution. Puppy 4.0 are built from scratch using the T2 SDE and no longer features native Slackware 12 compatibility in order to reduce the size and include newer package versions than those found in 3. To compensate for this, an optional "compatibility collection" of packages was created that restores some of the lost compatibility. Puppy 4.2.0 - 4.3.0 features changes to the user interface and backend, upgraded packages, language and character support, new in-house software and optimizations, while still keeping the ISO image size under 100 MB. Puppy 5.0.0 - 5.7.0 is based on a project called Woof which is designed to assemble a Puppy Linux distribution from the packages of other Linux distributions. Woof includes some binaries and software derived from Ubuntu, Debian, Slackware, T2 SDE, or Arch repositories. Puppy 5 came with a stripped down version of the Midori browser to be used for reading help files and a choice of web browsers to be installed, including Chromium, Firefox, SeaMonkey Internet Suite, Iron and Opera.Review of Precise Puppy: Puppy Linux With Ubuntu Favor, MakeTechEasier. Puppy 6.0.5 is built from Ubuntu 14.04 "Trusty Tahr" packages, has binary compatibility with Ubuntu 14.04 and access to the Ubuntu package repositories. Tahrpup is built from the woof-CE build system, forked from Barry Kauler's Woof late last year after he announced his retirement from Puppy development. It is built from the latest testing branch, incorporates all the latest woof-CE features and is released in PAE and noPAE ISOs, with the option to switch kernels. Puppy 6.3.2 is built with Slackware packages instead of Ubuntu 14.04 "Trusty Tahr" packages but is very similar to its predecessor. Puppy 7.5 is built from Ubuntu 16.04 "Xenial Xerus" packages, which has binary compatibility with Ubuntu 16.04 and access to the Ubuntu package repositories. XenialPup is