Over on the ruby-talk mailing list, why the lucky stiff just announced a new version of the Syck library (it reads and writes the excellent YAML format). In his announcement, he includes a warranty and a disclaimer:
Some of this code is still beta software and here’s my disclaimer as far as that goes: I’m not going to say “Use at your own risk” because I don’t want this library to be risky. If you trip on something, I’ll share the liability by repairing things as quickly as I can. Your responsibility is to report the inadequacies.
That, my friends, is what a warranty should be.