These are that latest official Puppy Linux distributions. They respectively support 32 bit x86 and 64 bit x86_64 (amd64) architectures. They also support both legacy BIOS and UEFI booting however in the case of UEFI secure boot must be turned off.
Puppy Linux is not a single Linux distribution like Debian. Puppy Linux is also not a Linux distribution with multiple flavours, like Ubuntu (with its variants of Ubuntu, Kubuntu, Xubuntu, etc) though it also comes in flavours.
Puppy Linux is a collection of multiple Linux distributions, built on the same shared principles, built using the same set of tools, built on top of a unique set of puppy specific applications and configurations and generally speaking provide consistent behaviours and features, no matter which flavours you choose.
There are generally three broad categories of Puppy Linux distributions:
- official Puppy Linux distributions → maintained by Puppy Linux team, usually targeted for general purpose, and generally built using Puppy Linux system builder (called Woof-CE).
- woof-built Puppy Linux distributions → developed to suit specific needs and appearances, also targeted for general purpose, and built using Puppy Linux system builder (called Woof-CE) with some additional or modified packages.
- unofficial derivatives (“puplets”) → are usually remasters (or remasters of remasters), made and maintained by Puppy Linux enthusiasts, usually targeted for specific purposes.