Puppy Service Packs are PET packages that upgrade Puppy to a later version.
When you install one of these, it might seem that nothing has happened,
but various little bugs have been fixed and maybe some upgrades and
improvements that you will notice later.
Wary 5.2 - 5.2.1
Various minor things. But, there is one major bug-fix, printing was
partially broken (did not print from some applications, such as
28 Oct. 2011