Lost License - Resend or Upgrade?

Hi, I remember purchasing Task Paper around 2008. I cannot find my license key. Is there a way to resend the license key or is there an upgrade license available?
Thanks a lot,

Christoph

You can resend your TaskPaper 2 license from here:

There is no upgrade pricing to TaskPaper 3 (difficult/impossible to do that for Mac App Store licenses) so instead that’s one of the reasons why I’m offering TaskPaper 3 Preview at 60% off.