Does the AppImage version of Ksnip feature a built-in update system? In other words, if I use the current continuous build of Ksnip 1.6 will I be able to differentially update it to the next continuous build?

Is that is already possible?

I have ~/bin/AppImageUpdate-x86_64.AppImage and it works to update the Subsurface AppImage. But when I try it with the Ksnip AppImage, I get "Update failed" and under "details" I see:

Fetching release information for tag "continuous" from GitHub API.
None of the artifacts matched the pattern in the update information. The pattern is most likely invalid, e.g., due to changes in the filenames of the AppImages. Please contact the author of the AppImage and ask them to revise the update information.
ZSync URL not available. See previous messages for details.

I have not changed the filename of the AppImage.

Is there something I need to fix at my end?