AppImage is meant to be updated using the embedded zsync info the runtime, that is the user should never have to open the app to update it.
The user needs to have something like AM, appimagelauncher or appimaged that is then able to parse the info and update the appimages using appimageupdatetool
This method also provides delta updates, meaning it doesn’t download the entire app but only a diff, see this test with CPU-X where it downloaded 2.65 MiB to update the app:
AppImage is meant to be updated using the embedded zsync info the runtime, that is the user should never have to open the app to update it.
The user needs to have something like AM, appimagelauncher or appimaged that is then able to parse the info and update the appimages using
appimageupdatetool
This method also provides delta updates, meaning it doesn’t download the entire app but only a diff, see this test with CPU-X where it downloaded 2.65 MiB to update the app: