After I reinstalled the latest canary that I had been using before I mistakenly installed the latest beta, I now realize that one big reason why I made the mistake is that Duplicati keeps informing me about the new release, although my choice of channel is not beta. I have never upgraded via the web UI, so I don’t know at which point exactly Duplicati uses the channel setting, but I can tell you it should be before informing about the new version. At minimum, the notification should indicate that the new release does not match my chosen channel.