I was asked by mail about some more details, how and what to test - and realized that I probably should have shared more information, beforehand. Apologies, and here's a quote of my answer:
Let's start with a short clarification, just to avoid any misunderstanding and manage expectations: StitchBuddy 3.7.0 is not going to offer any additional core functionality, so don't expect new features or capabilities. This version is mainly changing the app's design by making the design meta data less prominent and offering an easy way to collapse the thread list (this might even look better on more recent macOS versions, so I would check if your Mac can be updated e.g. to macOS 26 "Tahoe" as well). Although StitchBuddy will feel pretty much the same, I had to change A LOT on its inside - the reason why I'm asking its customers for additional testing: Of course I already did some thorough tests internally, but I might have missed a glitch ... you never know.
More information about TestFlight testing in general was moved into a dedicated discussion.
