There’s a recipe here for troubleshooting from messages that people report (even if not given in English).
Releases are not your worry after the PR is accepted, but it’s a series of Canary, then eventually a Beta with an Experimental just before, in the hope of detecting/solving upgrade bugs of infrequent upgrades.
GitHub use is extremely basic, maybe about to get overly basic with a big move to .NET 5 in progress…
The source control and release management challenge is to put out the new code at a good quality level.
Duplicati User’s Manual is its own project, and maintainer is asking that changes be done by pull request.