3.4.9 is out and plays nice with everything through Big Sur (Big Sur is starting to get a little twitchy, though). Yes, I planned that far ahead. v4 beta will actually be here real real soon (I'm hoping January, or Q1 at the worst) (updated 01/01/2021). More info is here! Debtinator 3.4.9 is out! Only $19.99!
your support is second to none, no obvious forums etc. but when I email Jim a question I'm amazed at how quickly he responds. Thanks again for a great app, and your support.