Our latest 'Woof2' built official Puppy 5.3.1 'Slacko' is out and highly Slackware compatible. Recommended for most new users. Slacko is not compatible with Woof1 built Puppy 5.2x Lucid - which was our recommended Puppy for the last two years. Many utilities from Lucid are available for Slacko in the LupufySlacko package.
For older hardware Wary 5.3 might be more efficient. Puppy Wary is compiled in Puppy using a mature kernel. Racy 5.3 combines Wary and the up to date 3.04 Linux kernel.
Unique configurations of Puppy (puplets) exist. For those migrating from Windows on hardware less than 5 years old and wishing to highly and easily customise, try Saluki.